Examkin

Soru

Zorluk: OrtaSurgical and Procedural Interventions

A 52-year-old man is evaluated on hospital day 18 for worsening fever and abdominal pain. He was initially admitted for severe acute gallstone pancreatitis. Over the first week of his hospitalization, he required aggressive intravenous fluid resuscitation and intensive care monitoring, but his condition had steadily improved until two days ago. Currently, his temperature is 39.4∘C39.4^\circ\text{C} (102.9∘F102.9^\circ\text{F}), blood pressure is 105/65105/65 mm Hg, pulse is 118118/min, and respiratory rate is 2222/min. Physical examination reveals a distended abdomen with marked epigastric tenderness but no rebound or guarding. Laboratory studies show a leukocyte count of 22,000/μL22,000/\mu\text{L}. A contrast-enhanced computed tomography scan of the abdomen demonstrates a 12×1012 \times 10 cm heterogeneous fluid collection replacing the body and tail of the pancreas, containing multiple distinct gas bubbles. Intravenous meropenem is initiated. What is the most appropriate next step in the management of this patient?

  1. Percutaneous image-guided catheter drainageCevap
  2. B
    Open exploratory laparotomy with surgical necrosectomy
  3. C
    Endoscopic retrograde cholangiopancreatography with sphincterotomy
  4. D
    Continuation of current medical therapy with close clinical observation
  5. E
    Addition of intravenous vancomycin and fluconazole

Cevap

Percutaneous image-guided catheter drainage
The correct intervention is percutaneous image-guided catheter drainage. This patient has developed infected pancreatic necrosis, diagnosed by clinical deterioration in the third week of severe pancreatitis and the pathognomonic finding of gas within the necrotic collection on a computed tomography scan. The management of infected pancreatic necrosis mandates both broad-spectrum antibiotics (e.g., meropenem) and mechanical source control. The current standard of care utilizes a 'step-up approach.' This strategy begins with minimally invasive drainage, either via percutaneous image-guided catheters or endoscopic transmural drainage. If the patient does not improve with initial drainage, the drains can be upsized, or a video-assisted retroperitoneal debridement (VARD) can be performed. Primary open necrosectomy is avoided due to significantly higher risks of bleeding, fistulas, multiorgan failure, and death.

Adım Adım Çözüm

1
Evaluate the patient's clinical trajectory and imaging findings.
The patient has late-onset clinical deterioration (fever, leukocytosis, tachycardia) with a CT scan showing gas within a necrotic pancreatic collection.
Gas within a pancreatic fluid collection in the setting of clinical sepsis is pathognomonic for infected pancreatic necrosis.
2
Determine the necessary therapeutic components for infected necrosis.
Systemic broad-spectrum antibiotics and mechanical source control are both required.
Antibiotics alone cannot adequately penetrate and sterilize large volumes of necrotic, avascular tissue.
3
Select the optimal interventional method for source control.
A minimally invasive 'step-up approach' starting with percutaneous or endoscopic transmural drainage is chosen over primary open surgery.
Clinical trials demonstrate that primary open necrosectomy carries higher rates of multiorgan failure and death, making the step-up approach the standard of care.

Anahtar Kavram

The standard of care for infected pancreatic necrosis is a 'step-up approach,' which initiates treatment with minimally invasive percutaneous or endoscopic drainage to achieve source control while minimizing surgical morbidity.
Bu soruyu puanla

Konular

Surgical and Procedural Interventions

Bu konudan daha fazla soru