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Zorluk: ZorGastrointestinal and Abdominal Surgery

A 68-year-old female is transferred from an inpatient rehabilitation facility to the acute care hospital due to severe, intractable abdominal discomfort. The patient reports that the pain began as intermittent cramping two days ago but has now become constant and severe. She has had multiple episodes of bilious emesis and has not passed stool or flatus in 48 hours. Her past medical history is significant for an open appendectomy and a total abdominal hysterectomy performed over a decade ago. Vital signs upon arrival include a temperature of 38.6°C (101.5°F), pulse of 124/min, respirations of 22/min, and blood pressure of 92/58 mm Hg. Physical examination reveals a markedly distended and tympanitic abdomen. Palpation elicits diffuse tenderness with severe focal guarding and rebound tenderness in the periumbilical region. Laboratory studies demonstrate a leukocyte count of 18,500/mm³ with a left shift, a serum bicarbonate level of 14 mEq/L, and a serum lactate concentration of 5.2 mmol/L. An upright abdominal radiograph displays multiple centrally located, dilated loops of intestine with air-fluid levels and an absence of distal colonic gas. Which of the following is the most appropriate next step in the management of this patient?

  1. Immediate operative explorationCevap
  2. B
    Cross-sectional imaging of the abdomen and pelvis
  3. C
    Gastrointestinal decompression and serial clinical examinations
  4. D
    Enteral administration of diatrizoate meglumine
  5. E
    Intravenous broad-spectrum antimicrobial therapy and observation

Cevap

Immediate operative exploration
The patient presents with classic signs of a small bowel obstruction complicated by bowel strangulation and ischemia. The presence of peritonitis (rebound, guarding), systemic toxicity (fever, tachycardia, hypotension), leukocytosis, and lactic acidosis are hard indicators of ischemic bowel. In this clinical scenario, delaying for further imaging is contraindicated. The patient requires urgent surgical exploration to resect necrotic bowel and relieve the mechanical obstruction.

Adım Adım Çözüm

1
Identify the primary clinical syndrome.
The patient's history of prior abdominal surgeries, obstipation, bilious vomiting, and radiologic evidence of dilated small bowel loops confirms a diagnosis of complete small bowel obstruction (SBO).
Establishing the baseline diagnosis is necessary before assessing for complications.
2
Assess for complications of the primary condition.
The patient exhibits fever, tachycardia, hypotension, severe localized peritonitis (guarding and rebound), significant leukocytosis, and lactic acidosis.
These findings reliably distinguish an uncomplicated SBO from a strangulated or ischemic SBO, which fundamentally alters the management pathway.
3
Determine the appropriate management intervention.
The presence of bowel ischemia and peritonitis dictates moving directly to the operating room for surgical exploration rather than attempting conservative therapies or delaying for further imaging.
Strangulated bowel rapidly progresses to necrosis, perforation, and death if not surgically resected.

Anahtar Kavram

Identifying signs of strangulation in small bowel obstruction (e.g., peritonitis, fever, tachycardia, metabolic acidosis) and recognizing the absolute indication for emergent laparotomy.
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Konular

Gastrointestinal and Abdominal Surgery

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