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Zorluk: OrtaGastrointestinal and Abdominal Surgery

A 52-year-old man is evaluated in the hospital for a sudden change in his clinical status. He was admitted 12 hours ago with a diagnosis of an acute small bowel obstruction. His medical history includes an open appendectomy complicated by peritonitis 15 years ago. On admission, his vital signs were normal, his abdomen was distended but soft, and he had no signs of peritonitis. He was managed conservatively with intravenous fluids, bowel rest, and nasogastric tube decompression. Over the past hour, his abdominal pain has transitioned from intermittent and crampy to severe, constant, and unremitting. His temperature is 38.9°C (102.0°F), pulse is 124/min, blood pressure is 100/60 mm Hg, and respirations are 24/min. The patient is diaphoretic and lying perfectly still in bed. Physical examination reveals a markedly distended abdomen with diffuse rigidity, involuntary guarding, and severe rebound tenderness. Bowel sounds are absent. Laboratory studies demonstrate a leukocyte count of 19,000/mm³ with a left shift and a serum lactate level of 4.8 mmol/L (Normal: 0.5–2.2 mmol/L). Which of the following is the most appropriate next step in management?

  1. Immediate exploratory laparotomyCevap
  2. B
    CT scan of the abdomen and pelvis with intravenous contrast
  3. C
    Continuation of nasogastric decompression and clinical observation
  4. D
    Administration of oral water-soluble contrast
  5. E
    Colonoscopy with attempted endoscopic decompression

Cevap

Immediate exploratory laparotomy
Immediate exploratory laparotomy is the correct management because this patient has developed a strangulated small bowel obstruction. The transition from colicky, intermittent pain to severe, unremitting pain, combined with the development of fever, tachycardia, peritonitis (diffuse rigidity and rebound tenderness), marked leukocytosis, and lactic acidosis, strongly indicates bowel ischemia and necrosis. In the presence of these definitive clinical signs of a surgical abdomen, conservative management must be abandoned immediately. Delaying surgery for any reason, including further imaging, significantly increases morbidity and mortality. The patient must be taken directly to the operating room for evaluation of bowel viability and necessary resection.

Adım Adım Çözüm

1
Identify the patient's underlying condition and clinical trajectory.
The patient has a known adhesive small bowel obstruction that initially presented with crampy pain and a soft abdomen.
Establishing the baseline diagnosis is necessary to evaluate the significance of the acute clinical changes.
2
Analyze the change in the patient's clinical presentation and laboratory values.
The patient has developed fever, tachycardia, constant (non-crampy) abdominal pain, diffuse peritonitis (rigidity, guarding, rebound tenderness), severe leukocytosis, and lactic acidosis.
These are the classic "hard signs" indicating that a simple mechanical obstruction has progressed to bowel ischemia, strangulation, or perforation.
3
Determine the most appropriate management based on the presence of peritonitis and ischemia.
The patient requires immediate exploratory laparotomy.
When a small bowel obstruction becomes complicated by strangulation or peritonitis, conservative management must be immediately abandoned in favor of surgical exploration to resect non-viable bowel.

Anahtar Kavram

Patients with a small bowel obstruction who develop signs of strangulation, ischemia, or perforation (e.g., fever, tachycardia, constant pain, peritonitis, leukocytosis, lactic acidosis) require immediate exploratory laparotomy.
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Gastrointestinal and Abdominal Surgery

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