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Zorluk: OrtaGastrointestinal and Abdominal Surgery

An orthopedic surgery team is consulted regarding a post-operative complication in an 82-year-old male patient. The patient underwent an uncomplicated left hemiarthroplasty three days ago following a femoral neck fracture. His past medical history is significant for Parkinson disease, essential hypertension, and chronic kidney disease. Over the last 24 hours, the nursing staff reports that he has developed progressive, marked abdominal swelling and has not passed any flatus or stool. He complains of mild, generalized abdominal discomfort and nausea but has not vomited. His current pain management regimen includes scheduled acetaminophen and as-needed intravenous hydromorphone.

His temperature is 37.1°C (98.8°F), pulse is 92/min, blood pressure is 135/85 mm Hg, and respiratory rate is 16/min. Physical examination reveals a profoundly distended and tympanitic abdomen. Bowel sounds are diminished. There is mild, diffuse palpation tenderness, but no guarding, rigidity, or rebound tenderness is elicited. An upright plain radiograph of the abdomen demonstrates marked gaseous distension of the ascending colon and cecum, with the cecal diameter measuring 10.5 cm. The distal colon contains scattered air, and there is no evidence of pneumoperitoneum.

Which of the following represents the most appropriate initial intervention for this patient's current gastrointestinal presentation?

  1. Cessation of the current intravenous opioid and institution of supportive careCevap
  2. B
    Intravenous administration of neostigmine
  3. C
    Endoscopic decompression of the large intestine
  4. D
    Urgent exploratory laparotomy
  5. E
    Initiation of broad-spectrum intravenous antimicrobial therapy

Cevap

Cessation of the current intravenous opioid and institution of supportive care
The correct intervention involves stopping the offending medication and providing supportive care. This patient's clinical presentation and radiographic findings (massive right colonic dilation without anatomical obstruction or pneumoperitoneum) are highly characteristic of acute colonic pseudo-obstruction, also known as Ogilvie syndrome. It most commonly occurs in elderly, hospitalized patients following surgery (such as orthopedic procedures) or severe illness. The pathogenesis involves autonomic dysfunction leading to parasympathetic suppression and sympathetic overactivity, which is frequently exacerbated by medications such as opioids and anticholinergics. Because the patient is hemodynamically stable, lacks signs of peritonitis, and the cecal diameter is less than 12 cm (indicating a lower immediate risk of perforation), the most appropriate initial management is strictly conservative. This includes making the patient nil per os (NPO), providing intravenous fluid resuscitation, placing a nasogastric and/or rectal tube for decompression, and immediately discontinuing offending pharmacological agents like intravenous hydromorphone.

Adım Adım Çözüm

1
Analyze the patient's presentation and radiographic findings.
The patient is an elderly postoperative male with massive right-sided colonic dilation (cecum measuring 10.5 cm) but no mechanical obstruction or peritonitis.
To establish the diagnosis of acute colonic pseudo-obstruction (Ogilvie syndrome).
2
Assess the risk of impending cecal perforation.
The cecal diameter is 10.5 cm, which is below the high-risk threshold of 12 cm. There are no peritoneal signs.
To determine whether conservative or aggressive (pharmacological or invasive) management is indicated.
3
Identify contributing factors and determine the initial intervention.
The patient is receiving intravenous hydromorphone, an opioid that decreases bowel motility. The initial step is to stop this medication and begin conservative supportive care.
Conservative management is the standard first-line treatment for Ogilvie syndrome without high-risk features.

Anahtar Kavram

The initial management of acute colonic pseudo-obstruction (Ogilvie syndrome) in stable patients with a cecal diameter < 12 cm consists of strictly conservative measures: bowel rest, fluid resuscitation, and discontinuation of offending medications (e.g., opioids, anticholinergics).
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Gastrointestinal and Abdominal Surgery

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