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Soru

Zorluk: OrtaGastroenterology and Hepatology

A 48-year-old man is hospitalized for severe acute pancreatitis. On admission, he was resuscitated with intravenous lactated Ringer solution and provided with adequate analgesia. On day 5 of his hospitalization, he reports persistent abdominal pain. His temperature is 38.3∘C38.3^\circ\text{C} (100.9∘F100.9^\circ\text{F}), blood pressure is 122/78 mmHg122/78\text{ mmHg}, and pulse is 105/min105/\text{min}. Physical examination reveals epigastric tenderness without rebound. Laboratory studies show a leukocyte count of 15,200/mm315,200/\text{mm}^3. A contrast-enhanced computed tomography scan of the abdomen demonstrates an enlarged pancreas with >30%>30\% non-enhancing necrotic tissue and surrounding peripancreatic fluid. No gas bubbles are visualized within the necrotic collections. Which of the following is the most appropriate next step in management?

  1. A
    Initiate intravenous imipenem-cilastatin
  2. B
    Initiate intravenous fluconazole
  3. Continue current supportive managementCevap
  4. D
    Initiate intravenous piperacillin-tazobactam
  5. E
    Initiate oral ciprofloxacin and metronidazole

Cevap

The correct answer is to continue current supportive management.
The correct approach is to continue current supportive management. This patient has severe acute pancreatitis complicated by pancreatic necrosis. In the first week of severe pancreatitis, patients frequently develop Systemic Inflammatory Response Syndrome (SIRS), manifesting with fever, tachycardia, and leukocytosis. These systemic signs are driven by a massive cytokine release from the inflamed pancreas, not necessarily by a bacterial infection. The contrast-enhanced CT scan confirms sterile necrosis, evidenced by the lack of gas bubbles within the necrotic collections. Current gastroenterology and surgical guidelines recommend against the routine use of prophylactic antibiotics or antifungals in patients with sterile pancreatic necrosis. Antimicrobial prophylaxis does not reduce mortality or the incidence of infected necrosis; instead, it increases the risk of selecting for multidrug-resistant organisms and fungal infections. Therefore, the standard of care remains aggressive supportive management, including fluid resuscitation, pain control, and nutritional support.

Adım Adım Çözüm

1
Analyze the patient's clinical presentation and imaging findings.
The patient has severe acute pancreatitis with >30% necrosis. He exhibits fever and leukocytosis, but the CT scan shows no gas in the necrotic tissue.
To differentiate between sterile pancreatic necrosis and infected pancreatic necrosis.
2
Determine the etiology of the fever and leukocytosis.
These findings are secondary to Systemic Inflammatory Response Syndrome (SIRS), which is expected in the first week of severe pancreatitis, rather than an active bacterial infection.
To decide if antimicrobial therapy is clinically indicated.
3
Apply clinical guidelines for the management of pancreatic necrosis.
Prophylactic antibiotics are contraindicated for sterile necrosis; supportive care is the standard.
To select the most appropriate next step in management.

Anahtar Kavram

Prophylactic antibiotics are not indicated in patients with severe acute pancreatitis and sterile necrosis, even in the presence of Systemic Inflammatory Response Syndrome (SIRS).
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Gastroenterology and Hepatology

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