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aortocaval fistula
Abnormal communication between the aorta and inferior vena cava, often iatrogenic during cardiac surgery.
Full Definition
An aortocaval fistula is a pathological connection between the aorta and inferior vena cava that can occur as a rare but serious complication during cardiac surgical procedures. This abnormal communication creates a left-to-right shunt, leading to volume overload and potential right heart failure. Recognition and prompt surgical repair are essential to prevent hemodynamic compromise and long-term complications.
Usage
Usage note: May be hyphenated as aorto-caval; ensure distinction from other fistula types.
In Context
- "Intraoperative TEE revealed an iatrogenic aortocaval fistula requiring immediate repair." — Operative report
- "The patient developed hemodynamic instability secondary to aortocaval fistula formation." — Complication documentation
Also known as
aorto-caval fistula
aortic-caval communication
Don't confuse with
aortoenteric fistula
coronary-caval fistula