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Hepatic artery aneurysm: factors that predict complications
Maher A Abbas1, Richard J Fowl, William M Stone
1Department of Surgery, Division of Vascular Surgery, Mayo Clinic Scottsdale, Scottsdale, AR 85259, USA.
Journal of Vascular Surgery
|July 5, 2003
Summary
Hepatic artery aneurysms (HAA) carry a rupture risk, especially those of nonatherosclerotic origin. Intervention is recommended for symptomatic HAAs or those with risk factors like multiple aneurysms.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Gastroenterology
Background:
- Hepatic artery aneurysms (HAA) are rare but serious vascular conditions.
- Understanding their management and outcomes is crucial for patient care.
Purpose of the Study:
- To review the Mayo Clinic's experience with the management and outcomes of hepatic artery aneurysms.
- To identify risk factors associated with HAA rupture.
Main Methods:
- Retrospective chart review of 306 patients with visceral aneurysms from 1980 to 1998.
- Identification of 36 patients (12%) diagnosed with hepatic artery aneurysms.
Main Results:
- Most HAAs were extrahepatic (78%) and single (92%), with a mean diameter of 3.6 cm.
- Rupture occurred in 14% of cases, with 40% mortality. Nonatherosclerotic origin was linked to rupture (P=.001).
- Elective procedures were performed in 39%, while 61% received nonoperative management with no aneurysm-related complications.
Conclusions:
- Hepatic artery aneurysms pose a significant rupture risk (14%).
- Risk factors for rupture include multiple HAAs and nonatherosclerotic origin.
- Intervention should be considered for symptomatic HAAs or those with identified risk factors.