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Zorluk: OrtaCardiothoracic and Vascular Surgery

Emergency medical personnel transport a 71-year-old man to the trauma bay due to the abrupt onset of excruciating abdominal pain that radiates to the lumbar region. The episode started one hour ago while he was resting at home. His past medical history is significant for hypertension, chronic obstructive pulmonary disease, and tobacco use disorder. On arrival, he appears pale, diaphoretic, and confused. His temperature is 36.6°C (97.9°F), blood pressure is 74/42 mm Hg, heart rate is 118/min, and respiratory rate is 24/min. Pulse oximetry is 94% on room air. Cardiopulmonary examination reveals tachycardia and scattered bilateral expiratory wheezes. Abdominal examination reveals a tender, expansile, pulsatile mass in the periumbilical region. Two large-bore intravenous lines are placed, and fluid resuscitation is initiated. A bedside point-of-care ultrasound confirms a 7.2-cm abdominal aortic aneurysm and free fluid in the hepatorenal recess.

Which of the following is the most appropriate next step in management?

  1. Emergent surgical repairCevap
  2. B
    Abdominopelvic computed tomography with intravenous contrast
  3. C
    Insertion of a nasogastric tube and serial abdominal examinations
  4. D
    Intravenous administration of furosemide and noninvasive positive pressure ventilation
  5. E
    Intravenous administration of piperacillin-tazobactam and blood cultures

Cevap

Emergent surgical repair is the appropriate next step for a hemodynamically unstable patient with a ruptured abdominal aortic aneurysm.
The correct management for a hemodynamically unstable patient with a ruptured abdominal aortic aneurysm (AAA) is immediate, emergent surgical repair. This patient presents with the classic triad of a ruptured AAA: acute severe abdominal or back pain, a pulsatile abdominal mass, and profound hypotension. The bedside ultrasound quickly confirms the diagnosis by visualizing a large AAA and free intraperitoneal fluid (hemoperitoneum). In this setting, the patient is in severe hemorrhagic shock and requires immediate transport to the operating room for hemorrhage control via open surgical repair or endovascular aneurysm repair (EVAR). Any delay, including obtaining advanced imaging, is life-threatening.

Adım Adım Çözüm

1
Identify the primary clinical syndrome from the patient's presentation.
The patient exhibits the classic triad of a ruptured abdominal aortic aneurysm (AAA): acute severe abdominal/back pain, profound hypotension, and a pulsatile abdominal mass.
Recognizing this triad is critical for rapidly initiating life-saving interventions in a hemorrhagic shock scenario.
2
Interpret the bedside ultrasound findings in the context of the patient's hemodynamic status.
The point-of-care ultrasound confirms a large 7.2-cm AAA with free intraperitoneal fluid, definitively establishing the diagnosis of a ruptured AAA without delaying care.
Ultrasound rapidly confirms the source of intra-abdominal hemorrhage in an unstable patient without the need for transport to radiology.
3
Determine the most appropriate definitive management.
Because the patient is in hemorrhagic shock, he must be taken immediately to the operating room for emergent surgical repair (open or endovascular).
Hemodynamically unstable patients with a ruptured AAA require immediate hemorrhage control; advanced imaging is contraindicated due to the high risk of fatal decompensation during transport.

Anahtar Kavram

Hemodynamically unstable patients with a ruptured abdominal aortic aneurysm require immediate emergent surgical repair without delay for cross-sectional imaging.
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Cardiothoracic and Vascular Surgery

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