🎬 Reel Content: "Three Idiots" Style Scene - Vacuum-Assisted Delivery

🎬 REEL 1: "The Setup - Why Are We Even Doing This?!"

✅ INDICATIONS for Vacuum Delivery:

• Prolonged 2nd stage of labor - nullipara >2 hrs without epidural, >3 hrs with epidural; multipara >1 hr / >2 hrs with epidural
• Non-reassuring fetal heart tracing requiring prompt delivery
• Maternal exhaustion
• Medical conditions where Valsalva is harmful (cardiac disease, hypertension, certain neurological conditions)

❌ CONTRAINDICATIONS:

• Face or brow presentation
• Breech presentation
• Unengaged fetal head
• Incomplete cervical dilation
• Prematurity (< 34 weeks - risk of intracranial hemorrhage!)
• Suspected fetal coagulation defect
• Malpresentation

🎬 REEL 2: "The Procedure - Don't Pull Like You're Starting a Motorcycle!"

📍 CUP PLACEMENT - The Most Important Step:

• OR over the sagittal suture, up to 3 cm in front of the posterior fontanelle toward the face
• This is called the "flexion point" - it promotes head flexion and autorotation

• Anterior fontanelle = large, cross-shaped
• Placing cup there = deflexion, asynclitism, cup pop-offs, scalp injury

• Sweep your finger 360° around the cup to make sure NO maternal tissue is trapped!

🔧 Vacuum Settings:

🔄 Direction of Traction:

• Traction is applied at right angles to the plane of the cup surface
• Follow the J-shaped pelvic curve - initially horizontal/downward, then upward as head extends around symphysis pubis
• As head clears the symphysis, the handle naturally rises from horizontal to nearly vertical
• NEVER rock, torque, or twist the cup
• Only with contractions - between contractions reduce pressure to 10 mmHg

🛑 HALT THE PROCEDURE IF:

1. Cup detaches more than 3 times
2. No progress after 3 consecutive pulls
3. Delivery not achieved within 20 minutes of traction

After failed vacuum → DO NOT automatically switch to forceps. Combined use (vacuum + forceps sequentially) increases intracranial hemorrhage risk by 3.4x compared to vacuum alone and 7.4x compared to spontaneous delivery. Proceed to C-section.

• Creasy & Resnik's Maternal-Fetal Medicine

🎬 REEL 3: "The Aftermath - Complications Nobody Warns You About"

👶 Complications - Know What to Expect:

⚖️ Vacuum vs Forceps:

⚠️ CLASSIC MISTAKES (The "Idiot" Errors):

1. Starting too soon - head not engaged, position unclear? Don't proceed
2. Wrong cup placement - always aim for posterior fontanelle / flexion point
3. Tissue trapped in cup - always sweep finger 360° before applying suction
4. Rocking/torquing - steady traction only, never lateral force
5. Continuing when failing - know when to stop and call for C-section
6. Forgetting FSE - remove fetal scalp electrode before vacuum application or risk scalp emphysema/cephalhematoma

"Vacuum lagao toh dimag se lagao. Pull karo toh J-curve follow karo. Aur agar 3 baar pop ho gayi... toh ruko. Kyunki sometimes, the best delivery is knowing when not to deliver with that instrument."

"Aal izz well... only when you know your indications, your contraindications, and your rule of threes."

📚 Sources:

• Pfenninger & Fowler's Procedures for Primary Care - Vacuum Delivery Chapter
• Creasy & Resnik's Maternal-Fetal Medicine - Vacuum Extraction
• Textbook of Family Medicine 9e - Operative Vaginal Delivery

• Reel 1: ~45-60 sec - "Why and When" (indications/contraindications)
• Reel 2: ~60-75 sec - "How To" (cup placement + traction technique + rule of 3)
• Reel 3: ~45-60 sec - "What Goes Wrong" (complications + vacuum vs forceps)

Peritonitis - Causes, Clinical Features, Complications & Management

Definition

• Harrison's Principles of Internal Medicine 22E, p. 1113
• Bailey & Love's Short Practice of Surgery 28th Ed, p. 1109

Classification

Causes

Causes of Peritoneal Inflammation

• Gastrointestinal perforation - perforated peptic ulcer, appendicitis, diverticulitis, acute cholecystitis, pancreatitis, post-surgical anastomotic leak
• Transmural translocation (no perforation) - pancreatitis, ischaemic bowel, primary bacterial peritonitis
• Female genital tract - pelvic inflammatory disease (PID), salpingitis; Chlamydia spp. and gonococci (can cause Fitz-Hugh-Curtis syndrome - perihepatitis with liver capsule scarring)
• Exogenous contamination - surgical drains, open surgery, trauma, peritoneal dialysis catheters
• Haematogenous spread (rare) - septicaemia

• Bile leakage (biliary peritonitis - post-cholecystectomy clip slippage, bile duct injury)
• Barium (from contrast studies)
• Gastric acid from perforated ulcer
• Blood (haemoperitoneum - ruptured ectopic pregnancy, ruptured AAA, ruptured ovarian cyst - blood is highly irritating to the peritoneum)

• Ischaemia - strangulated bowel, vascular occlusion
• Traumatic - operative handling
• Allergic - starch peritonitis (glove powder)
• Familial Mediterranean fever
• Autoimmune serositis - SLE, polyarteritis nodosa, primary Sjogren syndrome
• Tuberculosis (TB peritonitis)
• Fungal peritonitis (rare; complicates severely ill patients)
• CAPD (continuous ambulatory peritoneal dialysis) - Staph. epidermidis most common

• Aerobes: E. coli (most important - causes bacteraemia and death), Enterococcus
• Anaerobes: Bacteroides fragilis, Clostridium spp. (lead to abscess formation)
• Mixed aerobic/anaerobic flora in ~74% of colonic-source peritonitis

Clinical Features

Localised Peritonitis

• Pain in the affected area (somatic pain - parietal peritoneum involved)
• Involuntary guarding - reflex abdominal wall contraction
• Rebound tenderness - pain worsening on lifting examining hand
• Tachycardia and pyrexia (vital signs may still be near normal)
• Diaphragmatic irritation → shoulder tip (phrenic) pain referred to C5 dermatome
• Pelvic peritonitis → deep tenderness on PR/PV examination; abdominal signs may be minimal

Diffuse (Generalised) Peritonitis

• Abdominal pain of considerable intensity - worse on movement, coughing, deep respiration
• Acute or gradual onset; may begin localised then become diffuse
• Hippocratic facies - patient appears gravely ill, lies absolutely still
• Board-like rigidity - entire abdominal musculature contracts; scaphoid abdomen in thin patients
• Generalised ileus - absent/reduced bowel sounds, abdominal distension
• Nausea and vomiting (common with ileus)
• Constitutional - anorexia, malaise, lassitude
• Vital signs deranged: fever, tachycardia; hypotension is a late sign of sepsis
• Confusion, drowsiness, disorientation in advanced cases
• Loss of hepatic dullness on percussion → free air (pneumoperitoneum)

Important Pitfalls - Signs May Be Absent/Blunted In:

• Elderly patients
• Obese patients
• Immunosuppressed (steroids, chemotherapy)
• Diabetic patients (neuropathy)
• ICU/sedated/ventilated patients
• Alcohol/drug intoxication
• Spinal cord injury
• Cirrhosis with ascites (may show no pain in SBP until parietal peritoneum involved)

Investigations

Bloods

• WBC with left shift - raised neutrophil count with band forms (most common finding)
• Low WBC in gram-negative septicaemia = poor prognostic sign (exhausted bone marrow)
• Metabolic acidosis
• Haemoconcentration (plasma shifts into peritoneal cavity)
• Pre-renal azotaemia (raised creatinine/urea)
• Serum lactate (guides resuscitation per Surviving Sepsis guidelines)

Imaging

• CT abdomen/pelvis with IV ± oral contrast - investigation of choice; highly sensitive for free air, free fluid, cause of perforation
• Erect CXR - free air under diaphragm (pneumoperitoneum) - limited sensitivity; if patient too unwell for erect, use lateral decubitus film
• Ultrasound - useful for abscesses, biliary pathology, large fluid collections; lacks specificity

Peritoneal Lavage (if CT unavailable or patient too unstable)

• Insert catheter, infuse 1L normal saline
• Positive if effluent has: >500 WBC/mm³, OR amylase/bilirubin > serum levels, OR bacteria on Gram stain
• ~90% likelihood of surgical peritonitis if positive

Diagnostic Laparoscopy

• Highly accurate; many underlying causes can be dealt with laparoscopically

Complications

Principles of Management

1. Resuscitation and General Care

• IV fluid resuscitation - aggressive; bolus 30 mL/kg to treat intravascular volume depletion from plasma shift into peritoneal cavity
• Monitoring: BP (arterial line if shocked), HR, CVP, mixed venous O₂ saturation, urine output
• Insert nasogastric tube (bowel decompression for ileus) and urinary catheter (monitor output)
• Vasopressors only after adequate volume resuscitation fails to correct hypotension
• Glucocorticoids restricted to patients unresponsive to fluid + vasopressor therapy
• Serum lactate monitoring to guide resuscitation
• Analgesia - does not mask peritoneal signs on examination
• Vital system support (HDU/ICU level care for diffuse peritonitis)

2. Antibiotics

• Required before, during, and after surgical intervention
• Choice depends on source/setting:

• Short course antibiotics (4 ± 1 days) equally effective as longer courses once source control achieved
• Treat Candida if: septic shock, immunocompromised, hospital-acquired setting
• No need to treat Candida in haemodynamically stable community-acquired peritonitis

3. Source Control (Surgical / Interventional)

• The cornerstone of treatment - operative intervention is the "conservative" approach for secondary peritonitis
• Aims: remove/exclude the cause + lavage/dilute residual contamination

• Laparotomy or laparoscopy - for most cases of secondary peritonitis
• Peritoneal lavage - irrigate the peritoneal cavity to reduce bacterial load
• Drainage - drains placed for ongoing leaks or collections
• Bowel resection (with or without primary anastomosis depending on contamination)
• Defunctioning stoma - to divert faecal stream when primary anastomosis is unsafe
• Percutaneous drainage (CT/USS-guided) - for localised abscesses (e.g., diverticular abscess, appendix abscess)

• Localised LLQ peritonitis from diverticulitis → bowel rest + IV antibiotics
• Diverticular abscess → antibiotics + percutaneous drainage
• SBP → antibiotics alone (no surgery)
• Perforated peptic ulcer (selected patients) → non-operative management possible

4. Special Situations

• Fowler's position (semi-recumbent, head-up) - historically recommended to promote dependent drainage to the pelvis (lower toxin absorption); supports diaphragmatic lymphatic clearance
• Peritoneal dialysis-related peritonitis - intraperitoneal antibiotics preferred; most managed without stopping dialysis; recurrent infection may necessitate catheter removal

Prognosis

• Overall mortality: 15-30%
• Appendicitis, perforated duodenal ulcer: ~10% (lower end)
• Postoperative / tertiary peritonitis: up to 50% (higher end)
• Key determinants: age, time to diagnosis, adequacy of source control, presence of organ failure before intervention
• Outcome depends on rapidity of treatment - the sooner the diagnosis is made, the better the prognosis

• R - Resuscitation (IV fluids, monitoring, NG tube, catheter)
• A - Antibiotics (broad-spectrum, before/during/after surgery)
• P - Pain control + Positioning (Fowler's)
• S - Source Control (surgery/drainage - the definitive treatment)