Source / episode info
- **Episode:**163
- **Title:**Divine Intervention Episode 163 – USMLE Step 2CK Rapid Review Series 19 (Surgery, Abdomen).
- **Published:**2019-09-28
- Source:Episode page
One-liner
This episode provides a rapid review of critical abdominal topics, covering trauma algorithms and signs of peritonitis, retroperitoneal hemorrhage management, urological emergencies like bladder rupture, acute GI processes (appendicitis, cholecystitis), vascular catastrophes (AAA, mesenteric ischemia), and common surgical pitfalls (pseudo-obstruction, fistula formation).
High-yield summary
- Abdominal Trauma: If signs of peritonitis (e.g., rebound tenderness) are present, proceed immediately to exploratory laparotomy (X-Lap); otherwise, CT scan is preferred if the patient is stable.
- GI Bleeding: In suspected PUD bleeding, the most likely source vessel is the gastroepiploic artery (GDA); massive hemorrhage requires fluid resuscitation and potential surgery.
- AAA Management: The biggest risk factor is smoking; screening guidelines include men > 65 years old with a history of smoking or family history, using an abdominal ultrasound cutoff of 5.5 cm.
- Acute Cholecystitis: If the patient is critically ill (e.g., septic/ICU), initial management should be percutaneous cholecystostomy stenting rather than immediate laparoscopic cholecystectomy.
- Bowel Obstruction: Differentiate between mechanical obstruction (adhesions, hernia) and colonic pseudo-obstruction syndrome (massive distension without an identifiable cause); treatment for the latter involves neostigmine or rectal tube decompression.
Learning objectives
- Describe the appropriate surgical algorithm for blunt abdominal trauma based on stability and signs of peritonitis.
- Identify the key differential diagnoses and management steps for acute GI bleeding (e.g., PUD) and bowel obstruction.
- Recognize high-risk populations and screening criteria for Abdominal Aortic Aneurysm (AAA).
- Differentiate between mechanical small bowel obstruction and colonic pseudo-obstruction syndrome, and outline appropriate initial management.
- Master the diagnosis and treatment of acute cholecystitis versus choledocholithiasis/cholangitis using imaging modalities (US vs MRCP vs ERCP).
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