Examkin

Soru

Zorluk: Çok zorGastrointestinal and Abdominal Surgery

Match each highly complex clinical scenario with the most appropriate, guideline-directed surgical or interventional management step.

  • A 42-year-old woman develops bilious ascites and diffuse peritonitis 3 days after a difficult laparoscopic cholecystectomy. ERCP demonstrates a complete transection of the common bile duct with a 2.5-cm tissue gap.Biliary reconstruction via Roux-en-Y hepaticojejunostomy
  • A 55-year-old man with a bleeding posterior duodenal ulcer remains in hemorrhagic shock despite attempted endoscopic clipping and epinephrine injection. He continues to require a massive blood transfusion.Exploratory laparotomy, longitudinal duodenotomy, and three-point suture ligation
  • A 52-year-old man presents with persistent early satiety and nausea 8 weeks after an episode of severe acute pancreatitis. Imaging shows a mature, 8-cm symptomatic pseudocyst intimately adherent to the posterior wall of the stomach.Endoscopic ultrasound-guided transmural drainage (cystogastrostomy)
  • A 74-year-old woman presents with severe abdominal pain and lactic acidosis. CT imaging reveals a large cecal volvulus with pneumatosis intestinalis. She is hemodynamically unstable and requires escalating vasopressor support.Exploratory laparotomy, right hemicolectomy, and creation of an end ileostomy

Cevap

The correct matches align the biliary transection with a Roux-en-Y hepaticojejunostomy, the refractory duodenal ulcer bleeding with three-point suture ligation, the mature gastric-adherent pseudocyst with endoscopic transmural drainage, and the ischemic cecal volvulus in shock with a right hemicolectomy and end ileostomy.
Each correct pairing matches a critical gastrointestinal presentation with its guideline-mandated intervention by accounting for absolute surgical contraindications, such as avoiding primary anastomoses in shock or under high tissue tension.

Adım Adım Çözüm

1
Analyze the anatomical and physiological constraints of the biliary injury.
The 2.5-cm defect is too large for a tension-free primary repair.
Primary repair under tension guarantees ischemic stricture formation.
2
Identify the vascular anatomy involved in the posterior duodenal ulcer bleed.
The gastroduodenal artery is the source and has extensive collateral flow.
Simple single-point ligation will fail due to retrograde bleeding from the transverse pancreatic artery.
3
Evaluate the timing and location of the pancreatic pseudocyst.
The cyst is older than 6 weeks (mature wall) and borders the stomach.
This allows for a safe, minimally invasive transgastric approach rather than percutaneous or open drainage.
4
Assess the hemodynamics and bowel viability in the volvulus case.
The bowel is ischemic (pneumatosis) and the patient is in shock (vasopressors).
Ischemic bowel requires resection, and shock precludes any primary anastomosis, dictating a damage-control ostomy.

Anahtar Kavram

Advanced surgical decision-making requires integrating anatomical constraints (biliary defect size, collateral vasculature) with the patient's physiological state (shock contraindicating anastomosis) to choose the safest, most definitive intervention.
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Gastrointestinal and Abdominal Surgery

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