Patient Summary

• Known case of DM, HTN, IHD
• Recent procedure: PTCA (DEB) to LAD + FFR to RCA on 25/05/2026 at HVS Symbiosis Hospital
• Discharged, then re-admitted 29/05/2026 with fever with chills and burning urination

What Happened - A Clear Timeline

Discharge Medications (from prescription image)

Why the Patient Was Right to Be Concerned About Constipation - But Wrong to Skip Medications

• Brilinta (Ticagrelor) and Ecosprin (Aspirin) must NOT be stopped after a recent stent. Stopping dual antiplatelet therapy (DAPT) within days of a PTCA/stent procedure carries a very high risk of acute stent thrombosis, which can cause a heart attack. This is a medical emergency.
• Cremaffin (Syrup) was already prescribed specifically for constipation - it should have been taken as prescribed.

Why the RMO Stopped Dapefy (Dapagliflozin) - This Is Correct

1. The glucosuria it causes can worsen the infection
2. The patient has fever, chills, elevated WBC (14.63) - signs of systemic infection
3. NICE and standard guidelines state: "Stop the SGLT-2 inhibitor immediately and seek medical assessment if complicated UTI (including urosepsis) is suspected"
4. The patient is also volume-depleted (Na 129 - hyponatremia, K 3.1 - hypokalemia) and the osmotic diuresis effect of SGLT2i worsens dehydration

Current Lab Values (from today's case summary)

Current Treatment (correct and appropriate)

• IV Antibiotic: Inj Magnex Forte 1.5g (Ceftriaxone + Sulbactam) - broad-spectrum, appropriate for UTI/urosepsis
• Potassium correction (IV)
• Urine routine + culture sent (to identify organism and guide antibiotic)
• Referred to Dr Tarun P. Jain (Urologist)
• Dapefy stopped - correct

Key Concerns Going Forward

1. Do NOT stop Ecosprin and Brilinta under any circumstances without explicit cardiologist approval. These are life-critical after a recent PTCA. The treating team must confirm these are being continued even during this admission.
2. Urine culture result will guide whether the current antibiotic (Magnex Forte) needs to be changed or continued.
3. Electrolyte monitoring - sodium of 129 needs to be rechecked. Hyponatremia in a cardiac patient on telmisartan + diuretic-like SGLT2i is concerning.
4. BP was 193/84 on presentation but this was likely partly driven by the fever/infection (pain, stress, sympathetic activation). Once infection is controlled, BP should be reassessed before adjusting anti-hypertensives.
5. Dapefy can be restarted once the UTI is fully treated, the patient is stable, and the treating physician confirms. Stopping SGLT2i long-term in a cardiac patient (post-PTCA with known IHD) carries its own cardiovascular risk - studies show discontinuation after UTI is associated with ~33% higher adverse cardiovascular events.
6. Constipation management - Cremaffin syrup was already prescribed. The patient should take it as directed. If constipation persists, the treating team can add lactulose or increase fluid intake.

Bottom Line

Disclaimer: This information is educational and for understanding the clinical picture. All treatment decisions must be made by the patient's treating physicians (Dr Vishal Pingle / Dr Tarun P. Jain).

Dapagliflozin is NO Longer Just a Diabetes Drug

The Story of How SGLT2 Inhibitors Changed Cardiology

The Landmark Trials That Changed Everything

Why the Cardiologist Prescribed It for THIS Patient

1. Post-PTCA / IHD Cardioprotection

• SGLT2 inhibitors reduce the risk of cardiac remodeling (the heart weakening) after a coronary event
• They reduce preload and afterload on the heart through mild diuresis, reducing cardiac workload

2. Heart Failure Prevention

• Even if the patient doesn't have diagnosed heart failure yet, IHD patients are at high risk of developing it
• The 2022 ACC/AHA Heart Failure Guidelines give SGLT2 inhibitors a Class I recommendation for heart failure with reduced ejection fraction - regardless of diabetes status

3. Proven CV Outcomes in IHD

• In DAPA-HF, 56% of enrolled patients had ischemic heart failure - dapagliflozin reduced CV death by 18% in this group
• The drug reduces hospitalization for heart failure, which is a major concern post-stent

4. This Patient IS Diabetic (K/C/O DM)

• The case summary confirms he has known DM, HTN, and IHD - so dapagliflozin covers all three angles: glucose control, BP/cardiac protection, and renal protection

5. Renal Protection

• DAPA-CKD trial showed dapagliflozin protects kidneys even in non-diabetics
• Given his age (70) and recent procedure with contrast dye used in angiography, renal protection matters

The Mechanism Behind the Heart Benefits (Not About Sugar)

• Osmotic diuresis - reduces fluid overload, lowering cardiac filling pressures
• Natriuresis - reduces sodium retention
• Reduced inflammation - lowers cardiac inflammation markers
• Improved cardiac energy metabolism - the heart shifts to ketone bodies as fuel (more efficient)
• Direct cardiac cellular effects - reduces cardiac fibrosis and hypertrophy

Summary

The Core Problem: UTI Progressing to Urosepsis

• WBC 14.63 (high - active infection)
• CRP 88.20 (very high - significant systemic inflammation)
• Fever 103°F
• Urine sent for culture

1. SHIVERING (Rigors)

What is happening:

• Peripheral vasoconstriction - blood vessels in the skin constrict (skin goes pale/cold)
• Shivering/rigors - rapid muscle contractions to generate heat

Why it partially stopped after morning medications:

2. HIGH BP (193/84)

Factor A - Infection/Stress Response (Acute)

• Releases adrenaline (epinephrine) and noradrenaline
• These cause blood vessels to constrict and the heart to beat harder
• This is the classic "fight or flight" response - the body prepares to defend itself
• Pain, fever, and discomfort also independently raise BP through this same pathway

Factor B - Missed Morning Medications (Critical)

• Cilacar T (Amlodipine 10mg + Telmisartan 40mg) - his main BP-lowering combination tablet

• Vascular tone increases (blood vessels tighten)
• BP begins rising within hours
• This is called a "rebound effect" or simply loss of drug coverage

Why BP came down after taking medications:

3. HIGH FEVER (103°F / 39.4°C)

What is happening:

1. Bacteria from the UTI enter the bloodstream
2. White blood cells (WBC was 14.63 - elevated) detect the bacteria
3. WBCs release cytokines (IL-1β, IL-6, TNF-α, PGE2)
4. These reach the hypothalamus and raise the temperature set-point
5. Body temperature climbs to 103°F
6. At this temperature, bacterial growth slows and immune cells work faster - fever is actually a defense mechanism

Why fever remained high even after medications:

• Antibiotics (Inj Magnex Forte 1.5g - now started) kill the bacteria
• Antipyretics (Paracetamol/Crocin) are given
• The immune response settles over 24-72 hours

The Complete Picture - All Three Symptoms Together

UTI bacteria enter bloodstream
         |
         ↓
Immune system activates
         |
    _____|_____
    |          |
Pyrogens    Stress hormones
released    (Adrenaline)
    |          |
    ↓          ↓
FEVER      Vasoconstriction
(103°F)    + Increased heart
    |        output
    ↓          |
SHIVERING  HIGH BP (193/84)
(to raise  [Made much worse
 temp)      by skipping BP meds]

Why Taking Medications Helped (Partially)

Key Takeaway

Disclaimer: This is an educational explanation of the physiological mechanisms. The treating team (Dr Vishal Pingle / Dr Tarun P. Jain) are managing the patient appropriately with IV antibiotics and supportive care.

• "What caused the UTI if he was just discharged from a cardiac procedure?"
• "What caused the UTI if he was on Dapefy (which causes glucosuria)?"
• "What caused the UTI if he had no urinary symptoms before?"

Question 1: What Caused the UTI Without a Urinary Catheter?

Primary Suspect: Dapefy (Dapagliflozin) - Glucosuria

• Bacteria (especially E. coli, Klebsiella) feed on glucose and multiply rapidly
• The bladder lining's defences are weakened in a high-glucose environment
• Bacteria that would normally be flushed out find the perfect growth medium

Contributing Factor 1: Age (70 years) + Diabetes + IHD

• Elderly diabetic males have naturally impaired bladder emptying - the bladder doesn't fully empty, leaving residual urine where bacteria multiply
• Diabetics have compromised immune response to infections even when blood sugar is managed
• Poor circulation in IHD patients means immune cells reach the urinary tract less efficiently

Contributing Factor 2: Immobility During Hospitalization

• The patient was largely bed-bound or sedentary
• Reduced physical activity means less frequent and complete bladder emptying
• Stagnant urine = bacterial breeding ground
• This is a well-known cause of hospital-acquired UTI even without a catheter

Contributing Factor 3: Hospital Environment

• Shared bathrooms
• Healthcare worker contact
• Reduced personal hygiene due to bed rest and post-procedure restrictions

Contributing Factor 4: Contrast Dye Used in Angiography

• Is filtered by the kidneys
• Can cause temporary kidney stress (contrast nephropathy)
• This may have altered the normal protective urine flow and bladder mucosa integrity briefly

Question 2: What Caused the Constipation That Wasn't There Before?

Primary Cause: Cilacar T (Amlodipine 10mg)

• Intestinal peristalsis (the wave-like movement that pushes food through) slows down
• Food and stool move through the bowel more slowly
• Water gets absorbed out of the stool over time making it harder
• Result: constipation

• Mayo Clinic lists constipation as a standard side effect of calcium channel blockers
• GoodRx lists it as the #1 most common CCB side effect
• Published research (PMC) specifically documents amlodipine inducing bowel problems

Secondary Cause: Immobility During Hospitalization

• 4-5 days of bed rest dramatically slows gut motility
• Physical movement is what keeps bowels regular
• Reduced food intake and altered diet in hospital also contribute

Secondary Cause: Dehydration

• The SGLT2 inhibitor (Dapefy) causes osmotic diuresis - more urine output
• Combined with reduced oral fluid intake post-procedure
• Dehydration makes stools harder and harder to pass

Why Cremaffin Was Already Prescribed

Putting It All Together

HOSPITALIZATION (PTCA 25/05)
         |
    _____|__________________
    |                       |
New Medications          Bed Rest + Hospital Environment
    |                       |
Dapefy (Dapagliflozin)   Immobility → Bladder not fully emptying
    |                    Exposure to hospital bacteria
Glucosuria              Reduced gut movement
(sugar in urine)             |
    |                        |
Bacteria thrive          Constipation
in bladder                   +
    |               Dapefy causing dehydration
    |                        |
    ↓                        ↓
   UTI (burning urination) + CONSTIPATION
         |
    Spread to blood
         |
    UROSEPSIS (fever, shivering, high BP)

Summary

Disclaimer: This is an educational explanation. All clinical decisions are in the hands of the treating team.

• He has been on Cilacar T for over a year - so it was NOT the new cause of constipation
• He has no Type 2 diabetes and takes no diabetic medications
• The case summary says "K/C/O DM" - this may be a documentation error, or the hospital may have noted borderline/pre-diabetes
• Cremaffin was started only after hospitalization

Revised: What Actually Caused the Constipation?

1. Brilinta (Ticagrelor 90mg) - NEW Medication Post-PTCA

2. Ecosprin (Aspirin 75mg) - NEW or Dose Change Post-PTCA

3. Bed Rest and Immobility During Hospitalization

4. Reduced Food and Fluid Intake

5. Stress and Disrupted Routine

Revised: What Caused the UTI Without Catheter?

1. Dapefy (Dapagliflozin) - The Single Biggest Factor

• Sugar in urine = bacteria thrive
• He had no UTI before the drug was started
• The drug was started post-PTCA, and the UTI appeared within days of discharge

2. Immobility Leading to Incomplete Bladder Emptying

• Days of bed rest
• Possibly lying flat post-femoral procedure (groin access site requires lying still for hours)
• Reduced fluid intake

3. Femoral Artery Access Site (Left Groin)

• The groin area was shaved and prepped
• The patient had to lie completely still for hours after the procedure to prevent bleeding at the access site
• This prolonged stillness combined with close proximity to perineal bacteria increases the chance of upward bacterial migration into the urinary tract

4. Hospital-Acquired Bacteria

5. Contrast Dye (Iodinated Contrast for Angiography)

Revised Summary Table

The Important Question This Raises

• Why was Glyciphage 500mg (Metformin) prescribed? (It appears on the discharge sheet but is a diabetes drug)
• Why was Dapefy continued if he is truly non-diabetic? (It is legitimate for cardiac protection, but the dose and monitoring need to be appropriate)

Disclaimer: This is an educational analysis. All clinical decisions remain with the treating medical team.

The Real Chain of Events (Revised and Complete)

Before Hospitalization

• No burning urination
• No constipation
• No UTI
• Stable on Cilacar T for over a year

During Hospitalization (25/05 - 28/05)

Cause 1: Dapefy (Dapagliflozin) - Started Fresh

• His kidneys now excrete glucose into urine continuously
• Urine went from being a hostile environment for bacteria → to a sugar-rich bacterial growth medium
• Within days, bacteria (most likely E. coli from his own gut flora) began colonizing the bladder
• The glucose-rich urine also directly irritates the bladder lining (urothelium), causing the burning sensation even before a full-blown infection sets in

Cause 2: Immobility After Femoral Procedure

• Lie flat for 4-6 hours immediately after the procedure (standard protocol to prevent groin bleeding)
• Remain largely bed-bound for the hospital stay
• Avoid straining or sudden movement

• Lying flat means the bladder doesn't drain fully with gravity
• Using a bedpan or urinal in bed is awkward and men often hold urine longer than they should
• Residual urine accumulates - this stagnant urine is where bacteria multiply
• At 70, some degree of prostate enlargement (BPH) is extremely common even without symptoms, further reducing complete bladder emptying

• Lying flat stops the normal gravitational movement of stool through the colon
• No walking = no peristaltic stimulation
• Result: constipation within 2-3 days of bed rest - completely independent of medications

Cause 3: Brilinta (Ticagrelor) - Newly Started

The Complete Chain - Revised

PTCA via Left Femoral Approach (25/05/2026)
              |
    __________|__________
    |                    |
Dapefy Started       Bed Rest (4-6 hrs flat
(New drug)           + hospital stay)
    |                    |
Glucosuria           Bladder not emptying fully
(glucose in urine)   Stagnant residual urine
    |                    |
    +--------------------+
              |
    Bacteria multiply in bladder
              |
    _________|_________
    |                  |
BURNING           Full UTI develops
URINATION         (during hospital stay /
(early sign)       after discharge)
              |
    Bacteria enter bloodstream
              |
         UROSEPSIS
    (Fever 103F, Shivering,
         BP 193/84)

PTCA + Bed Rest
    |
Immobility + Brilinta (new)
    |
CONSTIPATION
    |
Patient self-stops ALL morning medications
    |
BP and cardiac protection lost
    |
Infection + no medications = BP 193/84

In Plain Language

The Unfortunate Cascade

1. A necessary and beneficial drug (Dapefy) caused an uncomfortable side effect (burning)
2. A necessary procedure (PTCA + bed rest) caused constipation
3. Not knowing which drug was causing what, he stopped all medications
4. This removed his cardiac and BP protection at exactly the wrong moment - when his body was already fighting an infection

• Burning urination is a known Dapefy side effect - report it immediately, do not stop medications
• Constipation is expected post-procedure - take Cremaffin as prescribed
• Never stop Ecosprin and Brilinta - these are life-critical after a stent

Disclaimer: This analysis is educational. The treating team at HVS Symbiosis Hospital are managing the patient and are the appropriate people to make all clinical decisions.

Has the Infection Reached the Kidney?

Kidney Function Tests - Currently Normal

But These Values Suggest the Infection Has Gone Beyond the Bladder

• CRP of 88
• WBC of 14.63
• Fever of 103°F with rigors (shivering)

• Referred to a urologist (Dr Tarun P. Jain)
• Started IV antibiotics (Inj Magnex Forte 1.5g) - not oral, because oral antibiotics are not enough for kidney-level or bloodstream infection
• Ordered urine culture to identify the exact bacteria

The Three Levels of Urinary Infection

Level 1 - Cystitis (Bladder only)
→ Burning urination, frequency
→ WBC mildly elevated, CRP normal/low
→ Fever usually absent or mild
→ Treated with oral antibiotics

Level 2 - Pyelonephritis (Kidney involved)
→ Burning urination + FEVER + FLANK PAIN + CHILLS
→ WBC elevated, CRP significantly high
→ Creatinine may start rising
→ Needs IV antibiotics

Level 3 - Urosepsis (Bacteria in blood)
→ High fever + Rigors (shivering) + High BP or Low BP
→ WBC very high, CRP very high
→ Can be life-threatening
→ Needs urgent IV antibiotics + hospitalization

⬆ This patient's presentation fits Level 2-3

Why Creatinine is Still Normal (1.0)

• The infection is not treated and spreads further
• The kidney tissue gets significantly damaged

What to Watch For

1. Repeat creatinine in 24-48 hours - if it starts rising above 1.3, kidney involvement is getting worse
2. Urine culture result - usually takes 48-72 hours, will guide whether the current antibiotic is the right one
3. Temperature trend - fever should start coming down within 24-48 hours of IV antibiotics if the drug is working
4. Urine output - should be adequate (>0.5 ml/kg/hour)

Bottom Line

Disclaimer: Only the treating medical team can confirm the exact diagnosis. If the patient develops reduced urine output, severe back/flank pain, or worsening fever despite antibiotics, the team should be informed immediately.