Management, prevention and lifestyle modification of osteoarthritis and gout

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Here is a detailed, evidence-based overview of the management, prevention, and lifestyle modification of both conditions.

Osteoarthritis (OA): Management, Prevention & Lifestyle Modification

Overview of the Management Framework

OA management is multimodal. All guidelines agree on a core framework that places education and exercise at the center, with pharmacologic and surgical options added as needed:

Overview of OA management - Firestein & Kelley's Textbook of Rheumatology

Core concepts of education, exercise, and weight management run throughout the course of OA. Pharmacologic interventions (topical, intra-articular, or oral) and surgery are added as the disease progresses. - Firestein & Kelley's Textbook of Rheumatology

1. Non-Pharmacologic Interventions (Core - Recommended for ALL Patients)

Patient Education & Self-Management

All clinical guidelines strongly recommend patient education as a core, non-negotiable intervention.
Patients should be counseled about the disease, self-management strategies, and directed to reliable sources (CDC, Arthritis Foundation, Osteoarthritis Action Alliance).
Language used matters: avoid fatalistic/biomedical language; use health-focused, de-stigmatizing communication to encourage active participation.
Self-management programs show moderate benefits for chronic musculoskeletal pain. - Firestein & Kelley's Textbook of Rheumatology

Weight Management

Obesity is both a risk factor and a consequence of lower-extremity OA - it increases mechanical loading and contributes via low-grade systemic inflammation from adipose tissue.
The 2019 ACR OA guidelines strongly recommend weight loss for overweight/obese patients.
Strategies combining both diet and exercise are more effective than diet alone (preserves lean mass, prevents sarcopenia).
Ideally delivered as a team approach: nutritional counseling + exercise program + behavioral strategies.
Significant dose-response relationship exists: weight loss of 20% or more provides the greatest benefit; even modest loss helps.
Bariatric surgery is an option for select patients. - Firestein & Kelley's Textbook of Rheumatology

Physical Activity & Exercise

The 2019 ACR OA guidelines strongly recommend exercise and physical activity. Key points:

No single exercise type is superior; tailor to patient preference, ability, and comorbidities.
Referral to physical therapy should be part of the core treatment plan.
Benefits are sustained only with long-term adherence - use goal-setting, self-monitoring (logs/apps), and social support.

Four main exercise categories:

Type	Details
Strength training	High-resistance, low-repetition with progressive increase; targets muscle groups around affected joint (e.g., knee extensors/flexors, hip abductors, calf muscles for knee OA)
Aerobic exercise	Low-impact, high-repetition (walking, cycling); can be land-based or aquatic (hydrotherapy)
Range-of-motion / Flexibility	Maintains joint mobility; should always be included but is insufficient alone
Neuromuscular training	Improves movement control; especially useful as patients with OA show altered movement patterns

Strategies to promote adherence include: setting short- and long-term goals together, providing written materials and apps, supervised sessions, exercise buddies, and community programs. - Firestein & Kelley's Textbook of Rheumatology

AAOS Evidence-Based Recommendations for Knee OA (Non-Arthroplasty)

Grade	Intervention	Recommendation
Strong (4-star)	Patient education, exercise (supervised/unsupervised/aquatic), self-management programs	Recommended
Strong (4-star)	Topical NSAIDs, oral NSAIDs, oral acetaminophen	Recommended
Strong (4-star)	Oral narcotics (including tramadol)	Not recommended
Moderate (3-star)	Canes, braces, neuromuscular training, sustained weight loss	Recommended
Moderate (3-star)	Intra-articular corticosteroids (short-term)	Recommended
Moderate (3-star)	Hyaluronic acid injections, arthroscopy with lavage/debridement	Not recommended
Limited (2-star)	Glucosamine, chondroitin, PRP, acupuncture, TENS, shockwave therapy	May be used selectively

- Miller's Review of Orthopaedics, 9th Edition

2. Pharmacologic Management

Topical Agents (preferred first - lowest systemic exposure)

Topical NSAIDs (e.g., diclofenac gel): Strongly recommended, especially for hand and knee OA; same efficacy as oral with fewer GI/CV side effects.
Capsaicin cream: Useful adjunct for hand/knee OA.

Oral Analgesics

Acetaminophen (paracetamol): First-line oral analgesic; modest benefit for pain.
NSAIDs (e.g., ibuprofen, naproxen, celecoxib): More effective than acetaminophen; use at lowest effective dose for shortest duration; consider GI protection (PPI) in high-risk patients.
Duloxetine: Useful for central sensitization and widespread pain component; particularly in knee OA.
Opioids (including tramadol): AAOS strongly recommends against use due to poor efficacy-to-risk ratio.

Intra-Articular Injections

Corticosteroids (e.g., triamcinolone): Moderate recommendation for short-term relief; effective for acute flares; repeated injections may cause cartilage damage.
Hyaluronic acid: No longer recommended by AAOS; some other guidelines allow selective use.
PRP (Platelet-Rich Plasma): Limited evidence; may improve pain/function selectively.

Surgical Interventions

High tibial osteotomy: For properly indicated unicompartmental knee OA.
Total joint arthroplasty: After adequate trials of other modalities; provides durable pain relief and functional restoration.
Arthroscopy with lavage/debridement: Not recommended for OA-related pathology.

- Miller's Review of Orthopaedics; Firestein & Kelley's Textbook of Rheumatology

A 2023 systematic review in Osteoarthritis & Cartilage of clinical practice guidelines confirms broad consensus on exercise, weight loss, and patient education as first-line recommendations. A 2024 systematic review in J Evid Based Med on knee OA management affirms multimodal approaches centered on these core elements.

Gout: Management, Prevention & Lifestyle Modification

Pathophysiology Summary (relevant to management)

Gout results from hyperuricemia - urate crystals (monosodium urate, MSU) deposit in joints, triggering NLRP3 inflammasome activation, IL-1β release, and neutrophil recruitment.
90% of cases are due to impaired renal urate excretion; 10% from overproduction.
Risk factors: obesity, Western diet (high purines), alcohol, sedentary lifestyle, diuretics, hypertension, CKD. - Harrison's Principles of Internal Medicine, 22e

1. Acute Gout Flare Treatment

Prompt treatment can abort an attack within hours. First-line options (Table):

Drug	Dose	Notes/Contraindications
NSAIDs (indomethacin 50 mg TID; naproxen 500 mg BID; ibuprofen 800 mg TID; meloxicam 15 mg daily)	Full anti-inflammatory doses	First-line; avoid in CKD, peptic ulcer disease, anticoagulation
Colchicine	1.2 mg PO, then 0.6 mg 1 hour later (low-dose regimen; equally effective and better tolerated)	Most effective within first 36 hours; avoid with carvedilol/grapefruit juice (raises levels); contraindicated in CKD
Intra-articular corticosteroids (triamcinolone/methylprednisolone)	40 mg for large joints; 10-20 mg for small joints	Monoarticular attack; rule out septic arthritis first; effective in 90% within 24 hours
Oral corticosteroids (prednisone)	40-60 mg daily, taper over 7-10 days	When NSAIDs and colchicine contraindicated; caution with uncontrolled diabetes
IL-1 inhibitor (anakinra)	100 mg SC daily for 3 days	When standard therapy is contraindicated or ineffective; avoid in active infection

- Washington Manual of Medical Therapeutics; Rheumatology 2-Volume Set; Lippincott Illustrated Reviews Pharmacology

Colchicine - Mechanism & Toxicity

The diagram below shows how colchicine interrupts the inflammatory cycle in gout:

Uric acid pathway and mechanism of colchicine - Lippincott Illustrated Reviews Pharmacology

Colchicine blocks neutrophil-mediated release of leukotrienes and inflammatory mediators. Key adverse effects: GI toxicity (diarrhea, nausea) is most common; bone marrow depression, cardiac toxicity, myopathy, and alopecia occur with overdose. - Lippincott Illustrated Reviews Pharmacology

2. Urate-Lowering Therapy (ULT) - Chronic Gout

Indications

2+ acute flares/year
Presence of tophi
Urate nephropathy or renal calculi
First flare with: uric acid >9 mg/dL, nephrolithiasis, or CKD stage ≥3

Serum Urate Targets

Without tophi: <6 mg/dL
With tophi: <5 mg/dL

Timing

Start ULT at least 2 weeks after the flare subsides, with at least 1 week of prophylactic therapy ongoing. Do not stop ULT during an active flare (fluctuations worsen attacks).

Flare Prophylaxis (when starting ULT)

Low-dose colchicine is first choice: start 1-2 weeks before ULT initiation; continue for at least 6 months after urate reaches target (longer if tophi present).
Alternatives: low-dose NSAIDs or low-dose corticosteroids.

ULT Drug Table

Drug	Class	Dose	Key Points
Allopurinol	Xanthine oxidase inhibitor	Start 100 mg/day (50 mg in CKD stage 4+); titrate by 100 mg every 2-5 weeks to target; max 800 mg	First-line; screen African Americans and Southeast Asians for *HLA-B5801** before starting (risk of severe cutaneous reaction/allopurinol hypersensitivity syndrome - 25% mortality)
Febuxostat	Xanthine oxidase inhibitor	40-80 mg/day (40 mg ≈ allopurinol 300 mg)	Second-line; more expensive; associated with higher cardiovascular event rate; caution with azathioprine/6-MP (inhibits their metabolism - reduce dose 60-75%)
Probenecid	Uricosuric	500 mg/day, titrate to max 3000 mg/day in divided doses	First-choice uricosuric; ineffective in significant renal impairment; avoid if urinary uric acid >800 mg/24 hours (nephrolithiasis risk)
Lesinurad	Uricosuric	200 mg/day	Used in combination with XOI
Pegloticase	Uricase	8 mg IV every 2 weeks	Refractory tophaceous gout; recombinant uricase converts urate to allantoin

- Washington Manual of Medical Therapeutics; Rheumatology 2-Volume Set; Lippincott Illustrated Reviews Pharmacology

3. Prevention & Lifestyle Modification in Gout

Lifestyle changes target the modifiable risk factors for hyperuricemia:

Dietary Modifications

Avoid / Limit	Encourage
Red meat and organ meats (liver, kidney) - high purine load	Low-fat dairy products (mildly uricosuric effect)
Shellfish (shrimp, lobster, scallops)	Vegetables (even high-purine vegetables like spinach do not significantly raise uric acid)
High-fructose corn syrup / sugar-sweetened beverages	Adequate hydration (2-3 L/day to promote urate excretion)
Alcohol (especially beer - highest risk; spirits moderate risk; wine less so)	Coffee (associated with lower uric acid levels)
Excessive fructose	Cherries / tart cherry juice (small evidence for lowering flare frequency)

Weight Management

Obesity is a key risk factor. Gradual, sustained weight loss reduces serum urate and flare frequency.
Avoid crash diets (rapid weight loss can precipitate acute flares via ketoacidosis competing with urate for renal excretion).

Medication Review

Diuretics (especially thiazides and loop diuretics) raise urate by increasing renal reabsorption - switch to alternatives (e.g., losartan for hypertension, which has mild uricosuric properties) when possible.
Low-dose aspirin mildly raises uric acid but should not be stopped if indicated (cardiovascular benefit outweighs gout risk).
Cyclosporine, pyrazinamide, and ethambutol also raise uric acid.

Other Lifestyle Factors

Increase physical activity (sedentary lifestyle raises risk).
Manage comorbidities - hypertension, CKD, metabolic syndrome, and heart failure all worsen urate handling and should be treated optimally.

- Harrison's Principles of Internal Medicine, 22e; Rheumatology 2-Volume Set

Quick Comparison: OA vs. Gout Management Priorities

Feature	Osteoarthritis	Gout
Primary lifestyle change	Weight loss + exercise	Low-purine diet + reduce alcohol
First-line drug (acute)	Topical/oral NSAIDs, acetaminophen	NSAIDs, colchicine, corticosteroids
Disease-modifying therapy	None approved (exercise/weight loss are closest)	Urate-lowering therapy (allopurinol)
Long-term prevention	Exercise adherence, weight maintenance	Maintain serum urate <6 mg/dL with ULT
Key "don't"	Avoid opioids/tramadol	Never stop ULT during a flare
Surgical option	Total joint arthroplasty	Rarely needed (tophus debridement)

Sources:

Firestein & Kelley's Textbook of Rheumatology (9780323935364)
Harrison's Principles of Internal Medicine, 22e (9781265977061)
Washington Manual of Medical Therapeutics (9781975190620)
Lippincott Illustrated Reviews: Pharmacology (9781975170561)
Miller's Review of Orthopaedics, 9th Edition (9780443112140)
Rheumatology, 2-Volume Set, 2022, Elsevier (9780702081330)

Make it short and comprehensive

Osteoarthritis & Gout: Management, Prevention & Lifestyle

OSTEOARTHRITIS

Core Principles

All guidelines agree: education + exercise + weight management form the non-negotiable foundation. Pharmacologic and surgical options are layered on top.

Lifestyle & Prevention

Weight loss - strongest modifiable factor; ≥20% loss gives greatest benefit; combine diet + exercise (not diet alone)
Exercise - no single type is superior; tailor to the patient:
- Strength training (progressive resistance)
- Aerobic/aquatic exercise (low-impact)
- Range-of-motion + neuromuscular training
Patient education - ongoing, not a one-time event; use positive, non-fatalistic language

Pharmacologic Management

Step	Drug	Notes
1st line	Topical NSAIDs (diclofenac gel)	Preferred - least systemic exposure
1st line	Oral acetaminophen	Modest pain relief
2nd line	Oral NSAIDs (naproxen, ibuprofen, celecoxib)	More effective; use lowest dose/shortest duration; add PPI if high GI risk
Adjunct	Duloxetine	Useful for central sensitization
Intra-articular	Corticosteroids	Short-term relief only
Avoid	Opioids/tramadol	AAOS strongly recommends against
Not recommended	Hyaluronic acid, arthroscopic lavage	No proven benefit

Surgical Options

Total joint arthroplasty - after adequate trial of other modalities
High tibial osteotomy - selected unicompartmental knee OA

GOUT

Core Principles

Two distinct goals: (1) treat the acute flare and (2) lower urate long-term to prevent recurrence and tophi.

Acute Flare Treatment

Drug	Dose	Notes
NSAIDs (indomethacin, naproxen)	Full anti-inflammatory doses	First-line; avoid in CKD, PUD, anticoagulation
Colchicine	1.2 mg then 0.6 mg 1 hr later	Most effective within first 36 hours; avoid in CKD
Intra-articular steroids	40 mg large / 10-20 mg small joints	Monoarticular attack; rule out septic arthritis
Oral prednisone	40-60 mg/day, taper over 7-10 days	When NSAIDs and colchicine contraindicated
Anakinra (IL-1 inhibitor)	100 mg SC daily × 3 days	Refractory cases; avoid if active infection

Urate-Lowering Therapy (ULT)

Indications: ≥2 flares/year, tophi, urate nephropathy, nephrolithiasis, CKD ≥ stage 3, or uric acid >9 mg/dL at first flare.

Targets: Uric acid <6 mg/dL (no tophi) or <5 mg/dL (with tophi)

Timing: Start ≥2 weeks after flare resolves. Never stop ULT during an active flare.

Prophylaxis when starting ULT: Low-dose colchicine for ≥6 months (begin 1-2 weeks before ULT).

Drug	Class	Dose	Key Caution
Allopurinol	XO inhibitor	Start 100 mg, titrate slowly	Screen for *HLA-B5801** in African Americans & Southeast Asians (severe skin reaction risk)
Febuxostat	XO inhibitor	40-80 mg/day	Higher CV event rate; second-line
Probenecid	Uricosuric	500-3000 mg/day	Ineffective in renal impairment; nephrolithiasis risk
Pegloticase	Uricase (IV)	8 mg IV q2 weeks	Refractory tophaceous gout only

Lifestyle & Prevention

Avoid	Favour
Red meat, organ meats, shellfish (high purine)	Low-fat dairy (mildly uricosuric)
Beer > spirits > wine	Adequate hydration (2-3 L/day)
Sugar-sweetened drinks / fructose	Coffee, cherries/tart cherry juice
Thiazide/loop diuretics (if possible, switch)	Losartan (antihypertensive with mild uricosuric effect)
Rapid weight loss (triggers flares)	Gradual, sustained weight loss
Sedentary lifestyle	Regular moderate exercise

Treat comorbidities aggressively: hypertension, CKD, metabolic syndrome, and heart failure all worsen urate handling.

Side-by-Side Summary

	Osteoarthritis	Gout
Key lifestyle change	Weight loss + exercise	Low-purine diet + reduce alcohol
Acute treatment	Topical/oral NSAIDs, acetaminophen	NSAIDs, colchicine, steroids
Long-term prevention	Exercise adherence, weight control	ULT to keep urate <6 mg/dL
Critical "don't"	Avoid opioids	Never stop ULT during a flare

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OA Gout Management

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The PDF includes:

Part 1 - Osteoarthritis: Lifestyle modifications, full pharmacologic table (stepped approach), and surgical options
Part 2 - Gout: Acute flare treatment table, ULT drug options with dosing and cautions, and a lifestyle do/don't table
Side-by-side comparison of both conditions
Source citations in the footer

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    { x:6.75, y:1.0, label:"Pharmacologic", sub:"Topical → Oral NSAIDs\nIntra-articular", fill: "D6E8F5" },
    { x:0.25, y:3.5, label:"Psychological &\nMind-Body", sub:"CBT, pain education,\nsleep management", fill: "D6E8F5" },
    { x:6.75, y:3.5, label:"Surgery", sub:"Arthroplasty\n(after all else fails)", fill: "FFE8B2" },
  ];
  corners.forEach(c => {
    card(s, c.x, c.y, 2.8, 1.7, c.fill, 0.1);
    s.addText(c.label, { x: c.x+0.1, y: c.y+0.15, w:2.6, h:0.5, fontSize:11, bold:true, color: C.navy, fontFace:FONT, align:"center" });
    s.addText(c.sub, { x: c.x+0.1, y: c.y+0.65, w:2.6, h:0.9, fontSize:8.5, color:"444444", fontFace:FONT, align:"center", valign:"top" });
  });

  // Arrows (lines)
  [[3.05,1.4,3.5,2.0],[6.75,1.4,6.5,2.0],[3.05,3.9,3.5,2.5],[6.75,3.9,6.5,2.5]].forEach(([x1,y1,x2,y2]) => {
    s.addShape(pres.shapes.LINE, { x:x1, y:y1, w: x2-x1, h: y2-y1, line:{ color:C.oa_blue, width:1.2, dashType:"dash" } });
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 5 – OA LIFESTYLE / PREVENTION
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.oa_blue);
  slideTitle(s, "OA – Lifestyle Modifications & Prevention", C.navy);
  hRule(s, 0.82, C.oa_blue);

  const cats = [
    { icon:"⚖️", title:"Weight Loss", color:"1A6B9A", points:["Most impactful modifiable factor","≥20% loss = greatest benefit","Combine diet + exercise (diet alone risks sarcopenia)","Bariatric surgery if needed"] },
    { icon:"🏃", title:"Exercise", color:"0E7C7B", points:["Strength training – progressive resistance","Aerobic/aquatic – walking, cycling (low-impact)","Range-of-motion & flexibility (always include)","Neuromuscular training"] },
    { icon:"📚", title:"Education", color:"7B3FA0", points:["Ongoing, not one-time","Use positive, non-fatalistic language","Direct to CDC, Arthritis Foundation","Self-management mobile apps"] },
    { icon:"🦯", title:"Assistive Devices", color:"B5600A", points:["Canes & walking aids (recommended)","Braces for knee OA","Lateral wedge insoles: NOT recommended","Occupational therapy for hand OA"] },
  ];

  cats.forEach((c,i) => {
    const x = 0.2 + (i%2)*4.9;
    const y = 1.0 + Math.floor(i/2)*2.15;
    card(s, x, y, 4.7, 1.9, C.light, 0.1);
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x: x+0.1, y: y+0.1, w:1.1, h:0.5, fill:{ color: c.color }, line:{ color: c.color }, rectRadius:0.08 });
    s.addText(c.icon+" "+c.title, { x: x+0.1, y: y+0.1, w:1.1, h:0.5, fontSize:8, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
    const arr = c.points.map((t,j) => ({ text:t, options:{ bullet:{ code:"25CF", color:c.color }, breakLine: j<c.points.length-1, fontSize:8.5, color:"333333", fontFace:FONT } }));
    s.addText(arr, { x: x+1.3, y: y+0.1, w:3.25, h:1.7, valign:"top" });
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 6 – OA PHARMACOLOGIC MGMT
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.oa_blue);
  slideTitle(s, "OA – Pharmacologic Management", C.navy);
  hRule(s, 0.82, C.oa_blue);

  // Step ladder approach
  const steps = [
    { step:"PREFER", label:"Topical Agents", detail:"Topical NSAIDs (diclofenac gel), capsaicin cream", why:"Lowest systemic exposure; same efficacy", fill:"1A6B9A" },
    { step:"1ST LINE", label:"Oral Acetaminophen", detail:"Standard analgesia, widely available", why:"Modest pain relief; safe for most", fill:"2E86AB" },
    { step:"2ND LINE", label:"Oral NSAIDs", detail:"Naproxen, ibuprofen, celecoxib", why:"More effective; lowest dose × shortest duration; add PPI if high GI risk", fill:"0E7C7B" },
    { step:"ADJUNCT", label:"Duloxetine", detail:"For central sensitization & widespread pain", why:"Useful when pain is out of proportion", fill:"5A7B3A" },
    { step:"LOCAL", label:"Intra-articular Corticosteroids", detail:"Triamcinolone – short-term relief only", why:"Repeated injections may damage cartilage", fill:"B5600A" },
    { step:"❌ AVOID", label:"Opioids / Tramadol", detail:"AAOS strongly recommends AGAINST", why:"Poor benefit-to-risk ratio", fill:"C0392B" },
  ];

  steps.forEach((st, i) => {
    const x = 0.25;
    const y = 0.92 + i*0.73;
    const w = 9.5;
    card(s, x, y, w, 0.65, i===5?"FEE8E6":C.light, 0.06);
    // Step badge
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x: x+0.05, y: y+0.1, w:1.1, h:0.45, fill:{ color: st.fill }, line:{ color: st.fill }, rectRadius:0.06 });
    s.addText(st.step, { x: x+0.05, y: y+0.1, w:1.1, h:0.45, fontSize:7.5, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
    s.addText(st.label, { x: x+1.25, y: y+0.08, w:2.8, h:0.26, fontSize:9.5, bold:true, color: i===5?C.gout_rd:C.navy, fontFace:FONT });
    s.addText(st.detail, { x: x+1.25, y: y+0.34, w:2.8, h:0.26, fontSize:8, color:"555555", fontFace:FONT });
    s.addText("→ "+st.why, { x: x+4.2, y: y+0.16, w:5.1, h:0.35, fontSize:8.5, color:"444444", fontFace:FONT, italic:true });
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 7 – OA SURGICAL OPTIONS + AAOS TABLE
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.oa_blue);
  slideTitle(s, "OA – Surgical Options & AAOS Recommendations", C.navy);
  hRule(s, 0.82, C.oa_blue);

  // Surgery cards
  const surg = [
    { t:"Total Joint Arthroplasty", d:"After adequate trial of all modalities.\nDurable pain relief & functional restoration.", good:true },
    { t:"High Tibial Osteotomy", d:"Selected unicompartmental knee OA patients.\nModerate evidence.", good:true },
    { t:"Arthroscopic Lavage / Debridement", d:"NOT recommended for OA-related pathology.\nNo proven benefit.", good:false },
  ];
  surg.forEach((c,i) => {
    const x = 0.25 + i*3.2;
    card(s, x, 0.95, 3.0, 1.5, c.good?"EDF7ED":"FDECEA", 0.1);
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x: x+0.1, y:1.0, w:0.5, h:0.5, fill:{ color: c.good?C.teal:C.red }, line:{ color: c.good?C.teal:C.red }, rectRadius:0.25 });
    s.addText(c.good?"✓":"✗", { x: x+0.1, y:1.0, w:0.5, h:0.5, fontSize:16, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
    s.addText(c.t, { x: x+0.7, y:1.0, w:2.4, h:0.5, fontSize:9, bold:true, color:"222222", fontFace:FONT, valign:"middle" });
    s.addText(c.d, { x: x+0.1, y:1.55, w:2.8, h:0.85, fontSize:8, color:"444444", fontFace:FONT });
  });

  // AAOS mini-table
  s.addText("AAOS Evidence-Based Recommendations (Knee OA)", { x:0.25, y:2.6, w:9.5, h:0.3, fontSize:10, bold:true, color:C.oa_blue, fontFace:FONT });
  const rows = [
    ["Grade","Intervention","Status"],
    ["★★★★ Strong","Patient education, Exercise (supervised/aquatic), Self-management","✓ Recommended"],
    ["★★★★ Strong","Topical NSAIDs, Oral NSAIDs, Acetaminophen","✓ Recommended"],
    ["★★★★ Strong","Opioids / Tramadol","✗ NOT Recommended"],
    ["★★★ Moderate","Canes, Braces, Weight loss, Neuromuscular training, IA Corticosteroids","✓ Recommended"],
    ["★★ Limited","Glucosamine, Chondroitin, PRP, Acupuncture, TENS","May use selectively"],
  ];
  const tbl = rows.map((r,i) => r.map(cell => ({
    text: cell,
    options: {
      bold: i===0,
      color: i===0 ? C.white : (cell.includes("NOT") ? C.red : (cell.includes("✓") ? C.teal : "333333")),
      fontSize: i===0 ? 8.5 : 8,
      fontFace: FONT,
      fill: i===0 ? C.navy : (i%2===0 ? C.light : C.white),
      align: i===0||[0,2].includes(rows[0].indexOf(cell)) ? "center" : "left",
      valign: "middle",
    }
  })));
  s.addTable(tbl, {
    x:0.25, y:2.95, w:9.5, colW:[2.0, 5.8, 1.7],
    border:{ color:"B0C4DE", pt:0.5 },
    rowH: 0.3,
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 8 – GOUT SECTION DIVIDER
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  sectionHeader(s, C.gout_rd);
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:0.1, h:5.625, fill:{ color: C.amber }, line:{ color: C.amber } });
  s.addText("PART 2", { x:0.3, y:1.5, w:9, h:0.5, fontSize:13, color: C.amber, fontFace:FONT, bold:true, charSpacing:6 });
  s.addText("Gout", { x:0.3, y:2.05, w:9, h:1.0, fontSize:52, bold:true, color:C.white, fontFace:FONT });
  s.addText("Acute Treatment  •  Urate-Lowering Therapy  •  Prevention", { x:0.3, y:3.1, w:9, h:0.45, fontSize:14, color:"FFCACA", fontFace:FONT, italic:true });
}

// ════════════════════════════════════════════
// SLIDE 9 – GOUT PATHOPHYSIOLOGY & TRIGGERS
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.gout_rd);
  slideTitle(s, "Gout – Pathophysiology & Risk Factors", C.navy);
  hRule(s, 0.82, C.gout_rd);

  // Pathway box
  card(s, 0.25, 0.95, 4.5, 4.3, "FFF5F5", 0.1);
  s.addText("Pathophysiology", { x:0.35, y:1.0, w:4.3, h:0.35, fontSize:10, bold:true, color:C.gout_rd, fontFace:FONT });

  const path = [
    "Hyperuricemia (impaired excretion 90%, overproduction 10%)",
    "↓",
    "Monosodium Urate (MSU) crystal deposition in joints",
    "↓",
    "NLRP3 inflammasome activation → IL-1β release",
    "↓",
    "Neutrophil recruitment → lysosomal rupture",
    "↓",
    "Acute intense inflammation (gout flare)",
    "↓",
    "Chronic: tophi, erosions, joint destruction",
  ];
  path.forEach((p,i) => {
    const isArrow = p==="↓";
    s.addText(p, { x:0.45, y:1.38+i*0.27, w:4.1, h:0.27, fontSize: isArrow?13:8, color: isArrow?C.gout_rd:"333333", fontFace:FONT, bold: isArrow, align: isArrow?"center":"left", valign:"middle" });
  });

  // Risk factors
  card(s, 5.0, 0.95, 4.75, 4.3, C.light, 0.1);
  s.addText("Risk Factors", { x:5.1, y:1.0, w:4.5, h:0.35, fontSize:10, bold:true, color:C.oa_blue, fontFace:FONT });
  const risks = [
    ["🍖","Purine-rich diet (red meat, shellfish, organ meats)"],
    ["🍺","Alcohol – beer > spirits > wine"],
    ["🧃","Fructose / sugar-sweetened beverages"],
    ["⚖️","Obesity / metabolic syndrome"],
    ["💊","Diuretics (thiazide, loop)"],
    ["🫀","Hypertension, CKD, heart failure"],
    ["🧬","Genetic: HPRT deficiency, PRPP synthetase overactivity"],
    ["🚶","Sedentary lifestyle"],
  ];
  risks.forEach((r,i) => {
    s.addText(r[0], { x:5.1, y:1.42+i*0.35, w:0.35, h:0.32, fontSize:10, fontFace:FONT, align:"center" });
    s.addText(r[1], { x:5.5, y:1.42+i*0.35, w:4.1, h:0.32, fontSize:8.5, color:"333333", fontFace:FONT, valign:"middle" });
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 10 – GOUT ACUTE TREATMENT
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.gout_rd);
  slideTitle(s, "Gout – Acute Flare Treatment", C.navy);
  hRule(s, 0.82, C.gout_rd);

  s.addText("Treat promptly – can abort attack within hours", { x:0.3, y:0.88, w:9.4, h:0.28, fontSize:9, color: C.gout_rd, fontFace:FONT, italic:true });

  const drugs = [
    { rank:"1ST", drug:"NSAIDs", dose:"Indomethacin 50mg TID / Naproxen 500mg BID\nIbuprofen 800mg TID / Meloxicam 15mg daily", note:"Contraindicated: CKD, PUD, anticoagulation", fill:"A93226" },
    { rank:"1ST", drug:"Colchicine", dose:"1.2 mg PO → then 0.6 mg 1 hr later\n(low-dose equally effective, better tolerated)", note:"Most effective within 36 hrs; avoid in CKD; caution: carvedilol/grapefruit juice", fill:"A93226" },
    { rank:"ALT", drug:"Intra-articular Corticosteroids", dose:"40 mg (large joints) / 10–20 mg (small joints)", note:"Rule out septic arthritis first; 90% effective within 24 hrs", fill:"C0702A" },
    { rank:"ALT", drug:"Oral Prednisone", dose:"40–60 mg/day; taper over 7–10 days", note:"When NSAIDs & colchicine contraindicated; caution with uncontrolled diabetes", fill:"C0702A" },
    { rank:"LAST", drug:"Anakinra (IL-1 inhibitor)", dose:"100 mg SC daily × 3 days", note:"Refractory cases only; contraindicated in active infection", fill:"8E44AD" },
  ];

  drugs.forEach((d,i) => {
    const y = 1.22 + i*0.82;
    card(s, 0.25, y, 9.5, 0.74, i<2?"FFF0F0":i<4?"FFF7EE":"F8F0FE", 0.07);
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x:0.32, y:y+0.12, w:0.85, h:0.5, fill:{ color: d.fill }, line:{ color: d.fill }, rectRadius:0.06 });
    s.addText(d.rank, { x:0.32, y:y+0.12, w:0.85, h:0.5, fontSize:8, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
    s.addText(d.drug, { x:1.25, y:y+0.08, w:2.5, h:0.3, fontSize:10, bold:true, color:"222222", fontFace:FONT });
    s.addText(d.dose, { x:1.25, y:y+0.38, w:2.5, h:0.32, fontSize:7.5, color:"555555", fontFace:FONT });
    s.addText("⚠ "+d.note, { x:3.9, y:y+0.18, w:5.7, h:0.38, fontSize:8, color:"666666", fontFace:FONT, italic:true });
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 11 – GOUT ULT
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.gout_rd);
  slideTitle(s, "Gout – Urate-Lowering Therapy (ULT)", C.navy);
  hRule(s, 0.82, C.gout_rd);

  // Indications + Targets side by side
  card(s, 0.25, 0.92, 4.5, 1.85, "FFF5F5", 0.09);
  s.addText("Indications for ULT", { x:0.35, y:0.97, w:4.3, h:0.3, fontSize:9.5, bold:true, color:C.gout_rd, fontFace:FONT });
  const inds = ["≥2 flares/year","Presence of tophi","Urate nephropathy or nephrolithiasis","CKD ≥ stage 3","Uric acid >9 mg/dL at first flare"];
  const indArr = inds.map((t,i) => ({ text:t, options:{ bullet:{ code:"25CF", color:C.gout_rd }, breakLine: i<inds.length-1, fontSize:8.5, color:"333333", fontFace:FONT }}));
  s.addText(indArr, { x:0.35, y:1.3, w:4.2, h:1.35, valign:"top" });

  card(s, 4.9, 0.92, 4.85, 1.85, "FFF0E0", 0.09);
  s.addText("Serum Urate Targets", { x:5.0, y:0.97, w:4.6, h:0.3, fontSize:9.5, bold:true, color:"B5600A", fontFace:FONT });
  s.addText("No tophi:  < 6 mg/dL", { x:5.0, y:1.32, w:4.6, h:0.35, fontSize:11, bold:true, color:C.teal, fontFace:FONT });
  s.addText("With tophi:  < 5 mg/dL", { x:5.0, y:1.72, w:4.6, h:0.35, fontSize:11, bold:true, color:C.gout_rd, fontFace:FONT });
  s.addText("Start ULT ≥2 weeks AFTER flare resolves\n⚠ NEVER stop ULT during an active flare", { x:5.0, y:2.1, w:4.6, h:0.55, fontSize:8, color:"555555", fontFace:FONT, italic:true });

  // Drug table
  s.addText("ULT Drug Options", { x:0.25, y:2.88, w:9.5, h:0.28, fontSize:10, bold:true, color:C.navy, fontFace:FONT });
  const ult = [
    ["Drug","Class","Dose","Key Caution"],
    ["Allopurinol","XO Inhibitor\n(1st line)","Start 100 mg; titrate slowly;\nmax 800 mg","Screen HLA-B*5801 in African Americans\n& SE Asians – severe skin reaction risk"],
    ["Febuxostat","XO Inhibitor\n(2nd line)","40–80 mg/day","Higher CV event rate; blocks azathioprine/\n6-MP metabolism"],
    ["Probenecid","Uricosuric","500–3000 mg/day","Ineffective in renal impairment;\nCaution if urinary uric acid >800 mg/24h"],
    ["Pegloticase","Uricase (IV)","8 mg IV q2 weeks","Refractory tophaceous gout only"],
  ];
  const ultTbl = ult.map((r,i) => r.map(cell => ({
    text: cell,
    options: {
      bold: i===0, fontSize: i===0?8.5:8, fontFace:FONT,
      color: i===0 ? C.white : (cell.includes("HLA")||cell.includes("CV")||cell.includes("renal")?"A93226":"333333"),
      fill: i===0 ? C.gout_rd : (i%2===0 ? "FFF5F5" : C.white),
      valign:"middle", align:"left",
    }
  })));
  s.addTable(ultTbl, { x:0.25, y:3.18, w:9.5, colW:[1.8,1.8,2.5,3.4], border:{ color:"E0B0B0", pt:0.5 }, rowH:0.42 });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 12 – GOUT LIFESTYLE
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.gout_rd);
  slideTitle(s, "Gout – Lifestyle Modifications & Prevention", C.navy);
  hRule(s, 0.82, C.gout_rd);

  // AVOID column
  card(s, 0.25, 0.95, 4.6, 4.35, "FDECEA", 0.1);
  s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x:0.35, y:1.0, w:1.8, h:0.38, fill:{ color:C.gout_rd }, line:{ color:C.gout_rd }, rectRadius:0.06 });
  s.addText("❌  AVOID / LIMIT", { x:0.35, y:1.0, w:1.8, h:0.38, fontSize:8.5, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
  const avoid = [
    "Red meat, organ meats (liver, kidney)",
    "Shellfish (shrimp, lobster, scallops)",
    "Beer (highest risk) > spirits > wine",
    "Sugar-sweetened drinks / fructose",
    "Rapid/crash weight loss (triggers flares)",
    "Thiazide & loop diuretics – switch if possible",
    "Sedentary lifestyle",
    "Cyclosporine, pyrazinamide, ethambutol",
  ];
  const avoidArr = avoid.map((t,i) => ({ text:t, options:{ bullet:{ code:"274C", color:C.gout_rd }, breakLine: i<avoid.length-1, fontSize:8.5, color:"333333", fontFace:FONT }}));
  s.addText(avoidArr, { x:0.4, y:1.45, w:4.3, h:3.7, valign:"top" });

  // ENCOURAGE column
  card(s, 5.15, 0.95, 4.6, 4.35, "EDF7ED", 0.1);
  s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x:5.25, y:1.0, w:2.0, h:0.38, fill:{ color:C.teal }, line:{ color:C.teal }, rectRadius:0.06 });
  s.addText("✅  ENCOURAGE", { x:5.25, y:1.0, w:2.0, h:0.38, fontSize:8.5, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
  const enc = [
    "Low-fat dairy (mildly uricosuric effect)",
    "Adequate hydration: 2–3 L/day",
    "Coffee (associated with lower uric acid)",
    "Cherries / tart cherry juice",
    "Gradual, sustained weight loss",
    "Losartan for hypertension (mild uricosuric)",
    "Regular moderate exercise",
    "Treat comorbidities: HTN, CKD, metabolic syndrome",
  ];
  const encArr = enc.map((t,i) => ({ text:t, options:{ bullet:{ code:"2714", color:C.teal }, breakLine: i<enc.length-1, fontSize:8.5, color:"333333", fontFace:FONT }}));
  s.addText(encArr, { x:5.2, y:1.45, w:4.4, h:3.7, valign:"top" });

  // Prophylaxis note
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:5.3, w:10, h:0.14, fill:{ color:"FFF3CD" }, line:{ color:"FFF3CD" } });
  s.addText("⚠  Flare Prophylaxis when starting ULT: Low-dose colchicine, starting 1–2 weeks BEFORE ULT, continue ≥6 months after urate reaches target", {
    x:0.2, y:5.3, w:9.6, h:0.14, fontSize:7, color:"7B5800", fontFace:FONT, valign:"middle"
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 13 – COMPARISON
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightSlide(s, C.teal);
  slideTitle(s, "Side-by-Side Comparison: OA vs. Gout", C.navy);
  hRule(s, 0.82, C.teal);

  const rows = [
    ["Feature", "Osteoarthritis", "Gout"],
    ["Key lifestyle change", "Weight loss + exercise", "Low-purine diet + reduce alcohol"],
    ["Acute treatment", "Topical/oral NSAIDs, acetaminophen", "NSAIDs, colchicine, corticosteroids"],
    ["Long-term prevention", "Exercise adherence, weight control", "ULT to keep uric acid <6 mg/dL"],
    ["Disease-modifying Rx", "None approved\n(exercise/weight loss = closest)", "Urate-lowering therapy (allopurinol)"],
    ["Critical DON'T", "Avoid opioids / tramadol", "Never stop ULT during a flare"],
    ["Surgical option", "Total joint arthroplasty", "Rarely needed (tophus debridement)"],
  ];

  const tbl = rows.map((r,i) => [
    { text:r[0], options:{ bold:true, fontSize:i===0?9:8.5, fontFace:FONT, color: i===0?C.white:C.navy, fill: i===0?C.teal:(i%2===0?C.light:C.white), valign:"middle" }},
    { text:r[1], options:{ fontSize:i===0?9:8.5, fontFace:FONT, color: i===0?C.white:(i===5?"A93226":"333333"), fill: i===0?C.oa_blue:(i%2===0?"EBF5FF":"F5FAFF"), bold:i===0||i===5, valign:"middle" }},
    { text:r[2], options:{ fontSize:i===0?9:8.5, fontFace:FONT, color: i===0?C.white:(i===5?C.gout_rd:"333333"), fill: i===0?C.gout_rd:(i%2===0?"FFEEEE":"FFF5F5"), bold:i===0||i===5, valign:"middle" }},
  ]);

  s.addTable(tbl, {
    x:0.3, y:0.92, w:9.4,
    colW:[2.8, 3.3, 3.3],
    border:{ color:"C8D8E8", pt:0.5 },
    rowH:0.58,
  });

  footerBar(s);
}

// ════════════════════════════════════════════
// SLIDE 14 – KEY TAKEAWAYS
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  darkSlide(s);
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:0.08, h:5.625, fill:{ color: C.amber }, line:{ color: C.amber } });

  s.addText("Key Takeaways", {
    x:0.3, y:0.25, w:9.4, h:0.55, fontSize:24, bold:true, color:C.white, fontFace:FONT
  });
  hRule(s, 0.88, C.teal);

  const takes = [
    { icon:"🦴", color:C.oa_blue, title:"OA: Exercise Is Medicine", body:"Weight loss ≥20% + tailored exercise is the most evidence-based intervention. No drug replaces these." },
    { icon:"💊", color:"2E86AB", title:"OA Pharmacology: Stepwise", body:"Start topical → oral acetaminophen → oral NSAIDs. Avoid opioids. IA corticosteroids for short-term only." },
    { icon:"🔴", color:C.gout_rd, title:"Gout: Treat Fast, Prevent Long", body:"Abort acute flares quickly (NSAIDs/colchicine within 36 hrs). Start ULT when indicated; maintain urate <6 mg/dL for life." },
    { icon:"🥗", color:C.teal, title:"Gout Lifestyle: Diet + Hydration", body:"Avoid purines, beer, fructose. Low-fat dairy + adequate hydration + gradual weight loss reduce flares significantly." },
    { icon:"⚠️", color:C.amber, title:"Critical Rules", body:"OA: Never prescribe opioids.  •  Gout: Never stop ULT during a flare — it worsens the attack." },
  ];

  takes.forEach((t,i) => {
    const y = 1.02 + i*0.88;
    card(s, 0.3, y, 9.4, 0.78, "0A1E2E", 0.08);
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x:0.4, y:y+0.14, w:0.5, h:0.5, fill:{ color:t.color }, line:{ color:t.color }, rectRadius:0.25 });
    s.addText(t.icon, { x:0.4, y:y+0.14, w:0.5, h:0.5, fontSize:14, fontFace:FONT, align:"center", valign:"middle" });
    s.addText(t.title, { x:1.0, y:y+0.1, w:3.5, h:0.3, fontSize:10, bold:true, color:C.amber, fontFace:FONT });
    s.addText(t.body, { x:1.0, y:y+0.42, w:8.5, h:0.3, fontSize:8.5, color:"CCDDEE", fontFace:FONT });
  });
}

pres.writeFile({ fileName: "/home/daytona/workspace/oa-gout/OA_Gout_Management.pptx" })
  .then(() => console.log("PPTX created successfully!"))
  .catch(e => { console.error(e); process.exit(1); });

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Writing File

~/oa-gout/make_ppt.js

const pptxgen = require("pptxgenjs");
const pres = new pptxgen();
pres.layout = "LAYOUT_16x9";
pres.title = "Osteoarthritis & Gout – Management, Prevention & Lifestyle";

// ─── PALETTE ────────────────────────────────────────────────
const C = {
  navy:   "1A3A5C",
  teal:   "0E7C7B",
  amber:  "E8A838",
  red:    "C0392B",
  light:  "EEF3F8",
  white:  "FFFFFF",
  dark:   "0D1F2D",
  grey:   "6C757D",
  ltgrey: "DEE5ED",
  oablue: "2C5F8A",
  goutrd: "A93226",
};
const FONT = "Calibri";

// ─── HELPERS ────────────────────────────────────────────────
function darkBg(s) {
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:10, h:5.625, fill:{ color:C.dark }, line:{ color:C.dark } });
}
function lightBg(s, accent) {
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:10, h:5.625, fill:{ color:C.white }, line:{ color:C.white } });
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:10, h:0.07, fill:{ color:accent||C.navy }, line:{ color:accent||C.navy } });
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:5.555, w:10, h:0.07, fill:{ color:accent||C.navy }, line:{ color:accent||C.navy } });
}
function sectionBg(s, color) {
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:10, h:5.625, fill:{ color }, line:{ color } });
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:0.1, h:5.625, fill:{ color:C.amber }, line:{ color:C.amber } });
}
function hLine(s, y, color) {
  s.addShape(pres.shapes.RECTANGLE, { x:0.35, y, w:9.3, h:0.02, fill:{ color:color||C.ltgrey }, line:{ color:color||C.ltgrey } });
}
function footer(s) {
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:5.44, w:10, h:0.185, fill:{ color:C.navy }, line:{ color:C.navy } });
  s.addText("Sources: Firestein & Kelley's | Harrison's 22e | Washington Manual | Lippincott Pharmacology | Miller's Orthopaedics 9e | ACR 2019 | AAOS CPG", {
    x:0.2, y:5.447, w:9.6, h:0.17, fontSize:6, color:"8AAEC8", fontFace:FONT, align:"center"
  });
}
function slideTitle(s, text, color) {
  s.addText(text, { x:0.35, y:0.15, w:9.3, h:0.55, fontSize:21, bold:true, color:color||C.navy, fontFace:FONT, valign:"middle" });
}
function card(s, x, y, w, h, fill, r) {
  s.addShape(pres.shapes.ROUNDED_RECTANGLE, {
    x, y, w, h, fill:{ color:fill||C.light }, line:{ color:fill||C.light }, rectRadius:r||0.08,
    shadow:{ type:"outer", color:"000000", blur:4, offset:2, angle:135, opacity:0.1 }
  });
}
function badge(s, x, y, w, h, fill, text, fs) {
  s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x, y, w, h, fill:{ color:fill }, line:{ color:fill }, rectRadius:0.06 });
  s.addText(text, { x, y, w, h, fontSize:fs||8, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
}
function bulletList(s, items, x, y, w, h, dotColor, fs) {
  const arr = items.map((t,i) => ({
    text: t,
    options: { bullet:{ code:"25CF", color:dotColor||C.amber }, breakLine: i<items.length-1, fontSize:fs||9, color:"333333", fontFace:FONT }
  }));
  s.addText(arr, { x, y, w, h, valign:"top" });
}

// ════════════════════════════════════════════
// SLIDE 1 – TITLE
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  darkBg(s);
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:0.1, h:5.625, fill:{ color:C.amber }, line:{ color:C.amber } });

  s.addText("Osteoarthritis & Gout", {
    x:0.3, y:1.0, w:9.4, h:1.0, fontSize:40, bold:true, color:C.white, fontFace:FONT, align:"center", charSpacing:1
  });
  s.addText("Management  •  Prevention  •  Lifestyle Modification", {
    x:0.3, y:2.1, w:9.4, h:0.5, fontSize:15, color:C.amber, fontFace:FONT, align:"center", italic:true
  });
  hLine(s, 2.72, C.teal);
  s.addText("ACR 2019  |  AAOS CPG  |  Harrison's 22e  |  Firestein & Kelley's  |  Washington Manual", {
    x:0.3, y:2.84, w:9.4, h:0.3, fontSize:8.5, color:"7AAAC8", fontFace:FONT, align:"center"
  });

  card(s, 1.0, 3.35, 3.5, 0.72, C.oablue, 0.1);
  s.addText("🦴  Osteoarthritis", { x:1.0, y:3.35, w:3.5, h:0.72, fontSize:13, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
  card(s, 5.5, 3.35, 3.5, 0.72, C.goutrd, 0.1);
  s.addText("🔴  Gout", { x:5.5, y:3.35, w:3.5, h:0.72, fontSize:13, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
}

// ════════════════════════════════════════════
// SLIDE 2 – OA SECTION DIVIDER
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  sectionBg(s, C.oablue);
  s.addText("PART 1", { x:0.4, y:1.4, w:9, h:0.45, fontSize:13, color:C.amber, fontFace:FONT, bold:true, charSpacing:6 });
  s.addText("Osteoarthritis", { x:0.4, y:1.9, w:9, h:1.1, fontSize:46, bold:true, color:C.white, fontFace:FONT });
  s.addText("Management  •  Prevention  •  Lifestyle", { x:0.4, y:3.05, w:9, h:0.45, fontSize:14, color:"AACCEE", fontFace:FONT, italic:true });
}

// ════════════════════════════════════════════
// SLIDE 3 – OA LIFESTYLE & PREVENTION
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.oablue);
  slideTitle(s, "OA – Lifestyle Modifications & Prevention");
  hLine(s, 0.78, C.oablue);

  const cats = [
    { icon:"⚖️", title:"Weight Loss", fill:"1A6B9A", pts:["Most impactful modifiable factor","≥20% weight loss = greatest benefit","Combine diet + exercise (not diet alone)","Bariatric surgery for select patients"] },
    { icon:"🏃", title:"Exercise", fill:C.teal, pts:["Strength training (progressive resistance)","Aerobic/aquatic – walking, cycling","Range-of-motion & flexibility","Neuromuscular training"] },
    { icon:"📚", title:"Patient Education", fill:"7B3FA0", pts:["Ongoing – not a one-time event","Positive, non-fatalistic language","Direct to CDC / Arthritis Foundation","Tailor self-management strategies"] },
    { icon:"🦯", title:"Assistive Devices", fill:"B5600A", pts:["Canes & walking aids (recommended)","Braces for knee OA (moderate evidence)","Lateral wedge insoles: NOT recommended","Occupational therapy for hand OA"] },
  ];

  cats.forEach((c, i) => {
    const x = 0.22 + (i % 2) * 4.9;
    const y = 0.95 + Math.floor(i / 2) * 2.2;
    card(s, x, y, 4.65, 1.98, C.light, 0.09);
    badge(s, x+0.1, y+0.12, 1.6, 0.42, c.fill, c.icon+" "+c.title, 8.5);
    bulletList(s, c.pts, x+1.82, y+0.12, 2.72, 1.75, c.fill, 8.5);
  });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 4 – OA PHARMACOLOGIC MANAGEMENT
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.oablue);
  slideTitle(s, "OA – Pharmacologic Management (Stepwise)");
  hLine(s, 0.78, C.oablue);

  const steps = [
    { rank:"PREFER", drug:"Topical Agents", detail:"Topical NSAIDs (diclofenac gel), capsaicin cream", why:"Lowest systemic exposure; equivalent efficacy to oral", fill:"1A6B9A", bg:"EBF5FF" },
    { rank:"1ST LINE", drug:"Oral Acetaminophen", detail:"Standard analgesia; widely available", why:"Modest pain relief; safe for most patients", fill:"2E86AB", bg:C.light },
    { rank:"2ND LINE", drug:"Oral NSAIDs", detail:"Naproxen, ibuprofen, celecoxib", why:"More effective; lowest dose × shortest duration; add PPI if high GI risk", fill:C.teal, bg:"EBF5FF" },
    { rank:"ADJUNCT", drug:"Duloxetine", detail:"For central sensitization & widespread pain", why:"Useful when pain is out of proportion to structural changes", fill:"5A7B3A", bg:C.light },
    { rank:"LOCAL", drug:"Intra-articular Corticosteroids", detail:"Triamcinolone – short-term relief only", why:"Repeated injections may damage cartilage long-term", fill:"B5600A", bg:"FFF7EE" },
    { rank:"❌ AVOID", drug:"Opioids / Tramadol", detail:"AAOS strongly recommends AGAINST use", why:"Poor benefit-to-risk ratio in OA", fill:C.red, bg:"FEE8E6" },
  ];

  steps.forEach((st, i) => {
    const y = 0.9 + i * 0.73;
    card(s, 0.22, y, 9.56, 0.66, st.bg, 0.06);
    badge(s, 0.3, y+0.1, 1.05, 0.46, st.fill, st.rank, 7.5);
    s.addText(st.drug, { x:1.45, y:y+0.08, w:2.85, h:0.27, fontSize:9.5, bold:true, color:i===5?C.red:C.navy, fontFace:FONT });
    s.addText(st.detail, { x:1.45, y:y+0.35, w:2.85, h:0.25, fontSize:7.5, color:"555555", fontFace:FONT });
    s.addText("→ "+st.why, { x:4.42, y:y+0.18, w:5.22, h:0.32, fontSize:8.5, color:"444444", fontFace:FONT, italic:true });
  });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 5 – OA SURGICAL OPTIONS + AAOS TABLE
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.oablue);
  slideTitle(s, "OA – Surgical Options & AAOS Guideline Summary");
  hLine(s, 0.78, C.oablue);

  const surg = [
    { t:"Total Joint Arthroplasty", d:"After adequate trial of all modalities.\nDurable pain relief & function restoration.", good:true },
    { t:"High Tibial Osteotomy", d:"Unicompartmental knee OA.\nModerate evidence.", good:true },
    { t:"Arthroscopic Lavage / Debridement", d:"NOT recommended for OA.\nNo proven benefit.", good:false },
  ];
  surg.forEach((c, i) => {
    const x = 0.22 + i * 3.26;
    card(s, x, 0.9, 3.1, 1.45, c.good?"EDF7ED":"FDECEA", 0.09);
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x:x+0.12, y:0.98, w:0.5, h:0.5, fill:{ color:c.good?C.teal:C.red }, line:{ color:c.good?C.teal:C.red }, rectRadius:0.25 });
    s.addText(c.good?"✓":"✗", { x:x+0.12, y:0.98, w:0.5, h:0.5, fontSize:16, bold:true, color:C.white, fontFace:FONT, align:"center", valign:"middle" });
    s.addText(c.t, { x:x+0.72, y:0.98, w:2.28, h:0.5, fontSize:9, bold:true, color:"222222", fontFace:FONT, valign:"middle" });
    s.addText(c.d, { x:x+0.12, y:1.52, w:2.88, h:0.76, fontSize:8, color:"555555", fontFace:FONT });
  });

  s.addText("AAOS Evidence-Based Recommendations – Knee OA (Non-Arthroplasty)", {
    x:0.22, y:2.5, w:9.56, h:0.28, fontSize:9.5, bold:true, color:C.oablue, fontFace:FONT
  });

  const rows = [
    ["Grade","Intervention","Verdict"],
    ["★★★★ Strong","Patient education, Exercise (supervised/aquatic), Self-management","✓ Recommended"],
    ["★★★★ Strong","Topical NSAIDs, Oral NSAIDs, Acetaminophen","✓ Recommended"],
    ["★★★★ Strong","Opioids / Tramadol","✗ NOT Recommended"],
    ["★★★ Moderate","Canes, Braces, Weight loss, IA Corticosteroids","✓ Recommended"],
    ["★★ Limited","Glucosamine, PRP, Acupuncture, TENS, Shockwave","Use selectively"],
  ];

  const tbl = rows.map((r,i) => r.map((cell, ci) => ({
    text: cell,
    options: {
      bold: i===0,
      fontSize: i===0 ? 8.5 : 8,
      fontFace: FONT,
      color: i===0 ? C.white : (cell.includes("NOT") ? C.red : cell.includes("✓") ? C.teal : "333333"),
      fill: i===0 ? C.navy : (i%2===0 ? C.light : C.white),
      align: "left", valign: "middle",
    }
  })));

  s.addTable(tbl, {
    x:0.22, y:2.82, w:9.56, colW:[2.0, 5.76, 1.8],
    border:{ color:"B0C4DE", pt:0.5 }, rowH:0.3,
  });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 6 – GOUT SECTION DIVIDER
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  sectionBg(s, C.goutrd);
  s.addText("PART 2", { x:0.4, y:1.4, w:9, h:0.45, fontSize:13, color:C.amber, fontFace:FONT, bold:true, charSpacing:6 });
  s.addText("Gout", { x:0.4, y:1.9, w:9, h:1.1, fontSize:52, bold:true, color:C.white, fontFace:FONT });
  s.addText("Acute Treatment  •  Urate-Lowering Therapy  •  Prevention", { x:0.4, y:3.05, w:9, h:0.45, fontSize:14, color:"FFCACA", fontFace:FONT, italic:true });
}

// ════════════════════════════════════════════
// SLIDE 7 – GOUT PATHOPHYSIOLOGY
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.goutrd);
  slideTitle(s, "Gout – Pathophysiology & Risk Factors");
  hLine(s, 0.78, C.goutrd);

  // Left: pathway
  card(s, 0.22, 0.9, 4.55, 4.3, "FFF5F5", 0.09);
  s.addText("Pathophysiology", { x:0.32, y:0.95, w:4.35, h:0.32, fontSize:10, bold:true, color:C.goutrd, fontFace:FONT });
  const path = [
    { t:"Hyperuricemia", arrow:false, bold:true },
    { t:"↓  (impaired renal excretion 90%, overproduction 10%)", arrow:false },
    { t:"MSU crystal deposition in joints", arrow:false, bold:true },
    { t:"↓", arrow:true },
    { t:"NLRP3 inflammasome → IL-1β release", arrow:false },
    { t:"↓", arrow:true },
    { t:"Neutrophil recruitment → lysosomal rupture", arrow:false },
    { t:"↓", arrow:true },
    { t:"ACUTE FLARE  (pain, swelling, redness)", arrow:false, bold:true },
    { t:"↓  (if untreated)", arrow:true },
    { t:"Tophi, erosions, joint destruction", arrow:false, bold:true },
  ];
  path.forEach((p,i) => {
    s.addText(p.t, {
      x:0.32, y:1.32+i*0.27, w:4.3, h:0.26,
      fontSize: p.arrow ? 13 : 8.5,
      color: p.arrow ? C.goutrd : (p.bold ? C.goutrd : "333333"),
      fontFace:FONT, bold:p.bold||false,
      align: p.arrow ? "center" : "left", valign:"middle"
    });
  });

  // Right: risk factors
  card(s, 5.0, 0.9, 4.78, 4.3, C.light, 0.09);
  s.addText("Risk Factors", { x:5.1, y:0.95, w:4.58, h:0.32, fontSize:10, bold:true, color:C.oablue, fontFace:FONT });
  const risks = [
    "🍖  Purine-rich diet (red meat, shellfish, organ meats)",
    "🍺  Alcohol – beer > spirits > wine",
    "🧃  Fructose / sugar-sweetened beverages",
    "⚖️  Obesity / metabolic syndrome",
    "💊  Diuretics (thiazide, loop diuretics)",
    "🫀  Hypertension, CKD, heart failure",
    "🚶  Sedentary lifestyle",
    "🧬  Genetic (HPRT deficiency, PRPP synthetase overactivity)",
  ];
  risks.forEach((r,i) => {
    s.addText(r, { x:5.1, y:1.32+i*0.36, w:4.55, h:0.33, fontSize:8.5, color:"333333", fontFace:FONT, valign:"middle" });
  });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 8 – GOUT ACUTE TREATMENT
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.goutrd);
  slideTitle(s, "Gout – Acute Flare Treatment");
  hLine(s, 0.78, C.goutrd);
  s.addText("Treat promptly – can abort attack within hours | Most effective within first 36 hours", {
    x:0.35, y:0.83, w:9.3, h:0.22, fontSize:8.5, color:C.goutrd, fontFace:FONT, italic:true
  });

  const drugs = [
    { rank:"1ST LINE", drug:"NSAIDs", dose:"Indomethacin 50mg TID  |  Naproxen 500mg BID\nIbuprofen 800mg TID  |  Meloxicam 15mg daily", note:"Contraindicated in CKD, peptic ulcer disease, anticoagulation", fill:"A93226", bg:"FFF0F0" },
    { rank:"1ST LINE", drug:"Colchicine", dose:"1.2 mg PO then 0.6 mg 1 hour later\n(Low-dose = equally effective, better tolerated)", note:"Most effective within 36 hrs; avoid in CKD; caution with carvedilol / grapefruit juice", fill:"A93226", bg:"FFF0F0" },
    { rank:"ALTERNATE", drug:"Intra-articular Corticosteroids", dose:"40 mg (large joints) / 10–20 mg (small joints)\nTriamcinolone or methylprednisolone", note:"Monoarticular attack; rule out septic arthritis first; 90% effective within 24 hrs", fill:"C0702A", bg:"FFF7EE" },
    { rank:"ALTERNATE", drug:"Oral Prednisone", dose:"40–60 mg/day; taper over 7–10 days", note:"When NSAIDs & colchicine contraindicated; caution in poorly controlled diabetes", fill:"C0702A", bg:"FFF7EE" },
    { rank:"REFRACTORY", drug:"Anakinra (IL-1 inhibitor)", dose:"100 mg SC daily × 3 days\n(CKD <30 mL/min: every other day)", note:"When standard therapy is contraindicated or ineffective; avoid in active infection", fill:"8E44AD", bg:"F8F0FE" },
  ];

  drugs.forEach((d,i) => {
    const y = 1.1 + i * 0.83;
    card(s, 0.22, y, 9.56, 0.76, d.bg, 0.07);
    badge(s, 0.3, y+0.13, 1.0, 0.5, d.fill, d.rank, 7);
    s.addText(d.drug, { x:1.4, y:y+0.08, w:2.8, h:0.28, fontSize:9.5, bold:true, color:C.navy, fontFace:FONT });
    s.addText(d.dose, { x:1.4, y:y+0.36, w:2.8, h:0.34, fontSize:7.5, color:"555555", fontFace:FONT });
    s.addText("⚠  "+d.note, { x:4.35, y:y+0.2, w:5.3, h:0.37, fontSize:8, color:"666666", fontFace:FONT, italic:true });
  });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 9 – GOUT ULT
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.goutrd);
  slideTitle(s, "Gout – Urate-Lowering Therapy (ULT)");
  hLine(s, 0.78, C.goutrd);

  // Indications card
  card(s, 0.22, 0.88, 4.55, 1.95, "FFF5F5", 0.09);
  s.addText("Indications for ULT", { x:0.32, y:0.93, w:4.35, h:0.3, fontSize:9.5, bold:true, color:C.goutrd, fontFace:FONT });
  bulletList(s, ["≥2 flares/year","Tophi present","Urate nephropathy or nephrolithiasis","CKD ≥ stage 3","Uric acid >9 mg/dL at first flare"], 0.32, 1.26, 4.3, 1.5, C.goutrd, 8.5);

  // Targets card
  card(s, 4.95, 0.88, 4.83, 1.95, "FFF0E0", 0.09);
  s.addText("Urate Targets & Timing", { x:5.05, y:0.93, w:4.63, h:0.3, fontSize:9.5, bold:true, color:"B5600A", fontFace:FONT });
  s.addText("No tophi  →  < 6 mg/dL", { x:5.05, y:1.28, w:4.63, h:0.35, fontSize:11, bold:true, color:C.teal, fontFace:FONT });
  s.addText("With tophi  →  < 5 mg/dL", { x:5.05, y:1.67, w:4.63, h:0.35, fontSize:11, bold:true, color:C.goutrd, fontFace:FONT });
  s.addText("• Start ≥2 weeks AFTER flare resolves\n• NEVER stop ULT during an active flare\n• Prophylaxis: low-dose colchicine ≥6 months", { x:5.05, y:2.06, w:4.63, h:0.65, fontSize:8, color:"555555", fontFace:FONT });

  // ULT table
  s.addText("ULT Drug Options", { x:0.22, y:2.9, w:9.56, h:0.28, fontSize:10, bold:true, color:C.navy, fontFace:FONT });
  const ult = [
    ["Drug","Class","Dose","Key Caution"],
    ["Allopurinol","XO Inhibitor (1st line)","Start 100 mg; titrate slowly; max 800 mg","Screen HLA-B*5801 in African Americans & SE Asians\n→ risk of fatal severe cutaneous reaction"],
    ["Febuxostat","XO Inhibitor (2nd line)","40–80 mg/day","Higher cardiovascular event rate; blocks azathioprine/6-MP metabolism (reduce dose 60–75%)"],
    ["Probenecid","Uricosuric","500–3000 mg/day in divided doses","Ineffective in renal impairment; avoid if urinary UA >800 mg/24h"],
    ["Pegloticase","Uricase (IV)","8 mg IV every 2 weeks","Refractory tophaceous gout only; expensive"],
  ];
  const ultTbl = ult.map((r,i) => r.map(cell => ({
    text: cell,
    options: {
      bold:i===0, fontSize:i===0?8.5:8, fontFace:FONT,
      color: i===0?C.white:(cell.includes("HLA")||cell.includes("cardiovascular")||cell.includes("Ineffective")?"A93226":"333333"),
      fill: i===0?C.goutrd:(i%2===0?"FFF5F5":C.white),
      valign:"middle", align:"left",
    }
  })));
  s.addTable(ultTbl, { x:0.22, y:3.2, w:9.56, colW:[1.8,1.9,2.5,3.36], border:{ color:"E0B0B0", pt:0.5 }, rowH:0.43 });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 10 – GOUT LIFESTYLE
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.goutrd);
  slideTitle(s, "Gout – Lifestyle Modifications & Prevention");
  hLine(s, 0.78, C.goutrd);

  // AVOID column
  card(s, 0.22, 0.9, 4.65, 4.3, "FDECEA", 0.09);
  badge(s, 0.32, 0.96, 2.1, 0.38, C.goutrd, "❌  AVOID / LIMIT", 8.5);
  const avoid = [
    "Red meat & organ meats (liver, kidney)",
    "Shellfish (shrimp, lobster, scallops)",
    "Beer (highest risk) > spirits > wine",
    "Sugar-sweetened drinks & fructose",
    "Rapid/crash weight loss (triggers flares)",
    "Thiazide & loop diuretics – switch if possible",
    "Cyclosporine, pyrazinamide, ethambutol",
    "Sedentary lifestyle",
  ];
  const avoidArr = avoid.map((t,i) => ({
    text:t, options:{ bullet:{ code:"274C", color:C.goutrd }, breakLine:i<avoid.length-1, fontSize:8.5, color:"333333", fontFace:FONT }
  }));
  s.addText(avoidArr, { x:0.35, y:1.4, w:4.35, h:3.65, valign:"top" });

  // ENCOURAGE column
  card(s, 5.13, 0.9, 4.65, 4.3, "EDF7ED", 0.09);
  badge(s, 5.23, 0.96, 2.0, 0.38, C.teal, "✅  ENCOURAGE", 8.5);
  const enc = [
    "Low-fat dairy (mildly uricosuric effect)",
    "Adequate hydration: 2–3 L/day",
    "Coffee (linked to lower uric acid levels)",
    "Cherries / tart cherry juice",
    "Gradual, sustained weight loss",
    "Losartan for hypertension (mild uricosuric)",
    "Regular moderate exercise",
    "Treat comorbidities (HTN, CKD, metabolic syndrome)",
  ];
  const encArr = enc.map((t,i) => ({
    text:t, options:{ bullet:{ code:"2714", color:C.teal }, breakLine:i<enc.length-1, fontSize:8.5, color:"333333", fontFace:FONT }
  }));
  s.addText(encArr, { x:5.26, y:1.4, w:4.38, h:3.65, valign:"top" });

  // Warning strip above footer
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:5.3, w:10, h:0.14, fill:{ color:"FFF3CD" }, line:{ color:"FFF3CD" } });
  s.addText("⚠  Flare Prophylaxis when starting ULT: Low-dose colchicine starting 1–2 weeks BEFORE ULT; continue ≥6 months after urate reaches target (longer if tophi present)", {
    x:0.2, y:5.3, w:9.6, h:0.14, fontSize:7, color:"7B5800", fontFace:FONT, valign:"middle"
  });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 11 – COMPARISON
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  lightBg(s, C.teal);
  slideTitle(s, "OA vs. Gout – Side-by-Side Comparison");
  hLine(s, 0.78, C.teal);

  const rows = [
    ["Feature","Osteoarthritis","Gout"],
    ["Key lifestyle change","Weight loss + exercise","Low-purine diet + reduce alcohol"],
    ["Acute treatment","Topical/oral NSAIDs, acetaminophen","NSAIDs, colchicine, corticosteroids"],
    ["Long-term prevention","Exercise adherence, weight control","ULT – keep uric acid <6 mg/dL"],
    ["Disease-modifying Rx","None approved\n(exercise/weight loss = closest)","Urate-lowering therapy (allopurinol)"],
    ["Critical DON'T","Avoid opioids / tramadol","Never stop ULT during a flare"],
    ["Surgical option","Total joint arthroplasty","Rarely needed (tophus debridement)"],
  ];

  const tbl = rows.map((r,i) => [
    { text:r[0], options:{ bold:true, fontSize:i===0?9:8.5, fontFace:FONT, color:i===0?C.white:C.navy, fill:i===0?C.teal:(i%2===0?C.light:C.white), valign:"middle" }},
    { text:r[1], options:{ fontSize:i===0?9:8.5, fontFace:FONT, color:i===0?C.white:(i===5?"A93226":"333333"), fill:i===0?C.oablue:(i%2===0?"EBF5FF":"F5FAFF"), bold:i===0||i===5, valign:"middle" }},
    { text:r[2], options:{ fontSize:i===0?9:8.5, fontFace:FONT, color:i===0?C.white:(i===5?C.goutrd:"333333"), fill:i===0?C.goutrd:(i%2===0?"FFEEEE":"FFF5F5"), bold:i===0||i===5, valign:"middle" }},
  ]);

  s.addTable(tbl, { x:0.22, y:0.9, w:9.56, colW:[2.8,3.38,3.38], border:{ color:"C8D8E8", pt:0.5 }, rowH:0.59 });

  footer(s);
}

// ════════════════════════════════════════════
// SLIDE 12 – KEY TAKEAWAYS
// ════════════════════════════════════════════
{
  const s = pres.addSlide();
  darkBg(s);
  s.addShape(pres.shapes.RECTANGLE, { x:0, y:0, w:0.1, h:5.625, fill:{ color:C.amber }, line:{ color:C.amber } });

  s.addText("Key Takeaways", { x:0.3, y:0.2, w:9.4, h:0.52, fontSize:24, bold:true, color:C.white, fontFace:FONT });
  hLine(s, 0.8, C.teal);

  const takes = [
    { icon:"⚖️", color:C.oablue, title:"OA: Lifestyle Is the Cornerstone", body:"Weight loss ≥20% + tailored exercise is the strongest evidence-based intervention. No approved disease-modifying drug exists." },
    { icon:"💊", color:"2E86AB", title:"OA Pharmacology: Stepwise & Topical-First", body:"Topical NSAIDs → oral acetaminophen → oral NSAIDs. Avoid opioids. IA corticosteroids for short-term only." },
    { icon:"🔴", color:C.goutrd, title:"Gout: Treat Fast, Prevent Long-Term", body:"Abort acute flares quickly (NSAIDs/colchicine within 36 hrs). Initiate ULT when indicated; maintain urate <6 mg/dL lifelong." },
    { icon:"🥗", color:C.teal, title:"Gout Lifestyle: Diet + Hydration + Comorbidities", body:"Avoid purines, beer, fructose. Low-fat dairy + 2–3 L fluids/day. Treat HTN, CKD, metabolic syndrome aggressively." },
    { icon:"⚠️", color:C.amber, title:"Two Rules to Never Forget", body:"OA → Never prescribe opioids/tramadol.     Gout → Never stop ULT during an active flare – it worsens the attack." },
  ];

  takes.forEach((t,i) => {
    const y = 0.95 + i * 0.9;
    card(s, 0.28, y, 9.44, 0.8, "0A1E2E", 0.08);
    s.addShape(pres.shapes.ROUNDED_RECTANGLE, { x:0.38, y:y+0.15, w:0.5, h:0.5, fill:{ color:t.color }, line:{ color:t.color }, rectRadius:0.25 });
    s.addText(t.icon, { x:0.38, y:y+0.15, w:0.5, h:0.5, fontSize:14, fontFace:FONT, align:"center", valign:"middle" });
    s.addText(t.title, { x:0.98, y:y+0.1, w:8.6, h:0.3, fontSize:9.5, bold:true, color:C.amber, fontFace:FONT });
    s.addText(t.body, { x:0.98, y:y+0.42, w:8.6, h:0.3, fontSize:8.5, color:"BBCCDD", fontFace:FONT });
  });
}

// ─── WRITE FILE ─────────────────────────────
pres.writeFile({ fileName:"/home/daytona/workspace/oa-gout/OA_Gout_Management.pptx" })
  .then(() => console.log("DONE"))
  .catch(e => { console.error(e); process.exit(1); });

Running Command

cd /home/daytona/workspace/oa-gout && node make_ppt.js

Running Command

ls -lh /home/daytona/workspace/oa-gout/OA_Gout_Management.pptx

Your PowerPoint is ready! Download it here:

OA Gout Management

Presentation · PPTX

The presentation has 12 slides with a clean, professional design:

Slide	Content
1	Title slide (dark theme)
2	OA Section divider
3	OA – Lifestyle & Prevention (4 cards: Weight loss, Exercise, Education, Assistive devices)
4	OA – Pharmacologic Management (stepwise table with color-coded badges)
5	OA – Surgical Options + AAOS evidence-grade table
6	Gout Section divider
7	Gout – Pathophysiology & Risk Factors (2-column layout)
8	Gout – Acute Flare Treatment (5-drug table with 1st line / alternate / refractory tiers)
9	Gout – Urate-Lowering Therapy (indications, targets, drug table)
10	Gout – Lifestyle: Avoid vs. Encourage (red/green columns)
11	OA vs. Gout Side-by-Side Comparison table
12	Key Takeaways (dark theme, 5 summary cards)

Make presentation on it

You already have the PowerPoint presentation ready from the previous step! Download it here:

OA Gout Management

Presentation · PPTX

This is a fully designed 12-slide presentation covering:

Title Slide - Osteoarthritis & Gout
OA Section Divider
OA Lifestyle & Prevention - Weight loss, exercise, education, assistive devices
OA Pharmacology - Stepwise management from topical to oral
OA Surgical Options - With AAOS evidence grades
Gout Section Divider
Gout Pathophysiology - Crystal formation, risk factors
Gout Acute Treatment - NSAIDs, colchicine, steroids, anakinra
Gout ULT - Allopurinol, febuxostat, probenecid, pegloticase
Gout Lifestyle - Avoid vs. Encourage (two-column layout)
OA vs. Gout Comparison - Side-by-side table
Key Takeaways - 5 summary points

If you meant something different - like a different format, more slides, speaker notes, or a specific style - let me know and I'll rebuild it to your specs!

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