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Zorluk: OrtaPreoperative and Postoperative Care

A 41-year-old man is evaluated on the surgical floor due to a new-onset fever and abdominal discomfort. He is currently on postoperative day 7 following an emergency laparoscopic appendectomy for ruptured appendicitis. The patient was tolerating a regular diet until yesterday, when he developed anorexia, nausea, and a progressively worsening ache in his right lower quadrant. His temperature is 39.2∘C39.2^\circ\text{C} (102.6∘F102.6^\circ\text{F}), pulse is 112/min112/\text{min}, respirations are 18/min18/\text{min}, and blood pressure is 118/76 mm Hg118/76\text{ mm Hg}. Physical examination reveals a mildly distended abdomen with focal deep tenderness in the right lower quadrant. There is no rebound tenderness or guarding. Bowel sounds are hypoactive. The laparoscopic port incisions are clean, dry, and intact with no surrounding erythema, induration, or purulent drainage. Laboratory studies show a leukocyte count of 17,500/mm317,500/\text{mm}^3 with 85%85\% neutrophils. Which of the following is the most appropriate next step in management?

  1. Computed tomography scan of the abdomen and pelvisCevap
  2. B
    Empiric initiation of broad-spectrum intravenous antibiotics
  3. C
    Bedside opening of the surgical incisions
  4. D
    Immediate exploratory laparotomy
  5. E
    Nasogastric tube placement and strict bowel rest

Cevap

Computed tomography scan of the abdomen and pelvis
The correct answer is to obtain a computed tomography (CT) scan of the abdomen and pelvis. This patient's presentation of a high fever, localized abdominal pain, and marked leukocytosis on postoperative day 7 following a contaminated surgery (ruptured appendicitis) is highly suspicious for an intra-abdominal abscess. Deep organ-space infections typically manifest between postoperative days 5 and 7. Because the patient is hemodynamically stable and lacks generalized peritonitis, the standard of care is to confirm the diagnosis and localize the collection using a CT scan. Once identified, the abscess can usually be managed with CT-guided percutaneous drain placement and targeted antibiotics.

Adım Adım Çözüm

1
Analyze the patient's postoperative timeline and presentation.
The patient has a high fever, leukocytosis, and focal abdominal pain on postoperative day 7 following an operation for a contaminated field (ruptured appendicitis).
Establishing the postoperative day helps narrow the differential diagnosis for postoperative fever (the '5 Ws'). Deep space infections typically present 5-7 days after surgery.
2
Evaluate the physical examination findings.
The abdominal exam shows focal right lower quadrant tenderness but no generalized peritonitis. The surgical incisions are benign.
The lack of incisional erythema rules out a superficial surgical site infection. The focal deep tenderness points to an intra-abdominal collection.
3
Determine the optimal diagnostic modality.
A CT scan of the abdomen and pelvis with contrast is selected.
CT imaging is highly sensitive for detecting intra-abdominal abscesses and can simultaneously provide a target for therapeutic percutaneous drainage in a stable patient.

Anahtar Kavram

Intra-abdominal abscess is a common complication occurring roughly 5 to 7 days after abdominal surgery, particularly in contaminated cases like ruptured appendicitis. Diagnosis is confirmed via CT scan, which can also guide percutaneous drainage.
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