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Zorluk: ZorGastrointestinal and Abdominal Surgery

Paramedics bring a 68-year-old female to the acute care clinic for evaluation of intractable vomiting and generalized abdominal swelling that began 24 hours ago. The patient reports that the emesis is dark green and bitter. She has been unable to pass any gas or stool since the symptoms started. Her surgical history is notable for a total abdominal hysterectomy performed 12 years ago.

Current vital signs are temperature 38.4°C (101.1°F), pulse 118/min, blood pressure 100/60 mmHg, and respirations 22/min. On examination, the abdomen is tensely distended and tympanic to percussion. There is exquisite tenderness with involuntary muscle spasm upon palpation of the lower quadrants. Bowel sounds are absent.

Initial laboratory studies reveal:
- Leukocyte count: 17,500/mm³
- Serum bicarbonate: 16 mEq/L
- Serum lactate: 4.1 mmol/L

A portable upright radiograph reveals multiple dilated small bowel loops 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. Urgent surgical exploration via midline laparotomyCevap
  2. B
    Cross-sectional imaging of the abdomen with intravenous contrast
  3. C
    Decompression via nasogastric tube and intravenous fluid resuscitation
  4. D
    Administration of oral water-soluble contrast and serial radiographic evaluation
  5. E
    Minimally invasive exploration via diagnostic laparoscopy

Cevap

Urgent surgical exploration via midline laparotomy
This patient's presentation of bilious emesis, obstipation, abdominal distension, and radiographic findings of dilated small bowel loops is classic for a small bowel obstruction (SBO), likely secondary to adhesions from her prior hysterectomy. Crucially, she exhibits signs of bowel ischemia and strangulation, including fever, tachycardia, peritonitis (involuntary muscle spasm), leukocytosis, and lactic acidosis (indicating tissue hypoperfusion). When an SBO is complicated by clinical signs of strangulation, perforation, or bowel necrosis, the appropriate management is immediate open surgical exploration. Delaying surgery for further imaging or attempting conservative management significantly increases mortality.

Adım Adım Çözüm

1
Identify the primary diagnosis based on the clinical presentation.
The patient has a small bowel obstruction (SBO), supported by bilious vomiting, obstipation, prior abdominal surgery (adhesions), and air-fluid levels on radiograph.
Establishing the baseline diagnosis is necessary before determining if complications are present.
2
Evaluate for signs of complicated SBO (ischemia, necrosis, or perforation).
The patient demonstrates fever, tachycardia, involuntary guarding (peritonitis), marked leukocytosis, and lactic acidosis.
Differentiating uncomplicated from complicated SBO dictates the entire management pathway.
3
Determine the appropriate intervention for complicated SBO.
Immediate surgical intervention (laparotomy) is required; conservative measures or further imaging must be bypassed.
Delaying surgery in the presence of strangulated bowel significantly increases the risk of bowel necrosis, sepsis, and mortality.

Anahtar Kavram

Recognition and surgical management of complicated small bowel obstruction (strangulation/ischemia).
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Konular

Gastrointestinal and Abdominal Surgery

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