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Zorluk: KolayCardiothoracic and Vascular Surgery

A 71-year-old man is brought to the emergency department by ambulance due to the sudden onset of severe abdominal pain that radiates to his lower back. He has a medical history of hypertension, hyperlipidemia, and an asymptomatic 6.2-cm abdominal aortic aneurysm diagnosed one year ago. Upon arrival, his blood pressure is 75/40 mmHg, and his heart rate is 122/min. He appears pale, confused, and diaphoretic. Physical examination reveals a distended abdomen with an exquisitely tender, palpable, pulsatile periumbilical mass. Which of the following is the most appropriate next step in management?

  1. A
    Computed tomography angiography of the abdomen
  2. B
    Intravenous administration of esmolol
  3. C
    Intravenous fluid resuscitation and serial hematocrit monitoring
  4. Emergent surgical repairCevap
  5. E
    Intravenous administration of broad-spectrum antibiotics

Cevap

The most appropriate next step is emergent surgical repair.
The correct answer is emergent surgical repair. This patient presents with the classic triad of a ruptured abdominal aortic aneurysm (AAA): severe back/abdominal pain, profound hypotension, and a pulsatile abdominal mass. When a patient is hemodynamically unstable and has a known history of a large AAA, the diagnosis is clinical, and there is no need for further imaging. The absolute immediate next step is to transport the patient to the operating room for emergent surgical repair (either open or endovascular, depending on patient anatomy and facility capabilities). Any delay for diagnostic testing in this scenario is associated with a dramatic increase in mortality.

Adım Adım Çözüm

1
Identify the patient's clinical syndrome based on vital signs and physical examination.
The patient has the classic triad of a ruptured abdominal aortic aneurysm (AAA): profound hypotension, severe abdominal/back pain, and a pulsatile abdominal mass.
Recognizing this triad is critical because a ruptured AAA is a life-threatening surgical emergency with a very high mortality rate.
2
Determine the patient's hemodynamic stability.
The patient is hemodynamically unstable (blood pressure 75/40 mmHg, heart rate 122/min, altered mental status).
Hemodynamic stability dictates the diagnostic and therapeutic algorithm. Stable patients can undergo diagnostic imaging, while unstable patients cannot.
3
Select the appropriate intervention based on stability and known history.
Because the patient is hemodynamically unstable and has a known history of a 6.2-cm AAA, he must be taken immediately to the operating room for emergent surgical repair.
Any delay for imaging (like a CT scan) in an unstable patient with a known AAA is contraindicated and significantly increases the risk of death.

Anahtar Kavram

Hemodynamically unstable patients with a known abdominal aortic aneurysm who present with classic symptoms of rupture (hypotension, back pain, pulsatile mass) require immediate emergent surgical repair without further imaging.
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Cardiothoracic and Vascular Surgery

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