Coil Embolization of True, Common and Proper, Hepatic Artery Aneurysms: Technique, Safety and Outcome

• DOI: 10.1007/s00270-023-03379-0
• Publication Date: 2023-03-14T20:02:48Z
• Authors: A. Van Holsbeeck; E. Dhondt; J. Marrannes; E. Claus; L. Bonne; L. Defreyne; G. Maleux
• Keywords: Hepatic Artery; Treatment Outcome; Humans; Intracranial Aneurysm; Aneurysm; Embolization, Therapeutic; Retrospective Studies; Follow-Up Studies

To retrospectively assess the safety and efficacy of coil embolization for catheter-directed true common and proper hepatic artery aneurysm exclusion.Nine consecutive patients (2005-2021) in two university centers presenting with true common and proper hepatic artery aneurysms (> 2 cm in diameter) were treated with 'frontdoor-backdoor' coil embolization. Patients presenting with a hepatic artery pseudoaneurysm, mycotic aneurysm or patients with small (< 2 cm diameter) aneurysms and followed up by imaging were excluded. Technical and clinical success was defined as complete coil-exclusion of the aneurysm on completion angiography and absence of post-embolization adverse events, in particular mass effect or hemorrhage, respectively. Patient characteristics, technical and clinical success, liver function tests and follow-up results were assessed based on the patients' electronic medical records.Technical and 30-day clinical success was achieved in all procedures (100%). No major procedural complications were reported. Liver function test values were available in 6/9 patients, showing transient elevation of bilirubin in one patient. No end organ ischemia was reported. The mean clinical follow-up period of the study patients was 72 months (12-168 months). Long-term stable occlusion of the hepatic aneurysms was achieved in 9/9 patients (100%). One patient showed late complication (3 years) with coil migration into a bulbar ulcer, without aneurysm recanalization, however with fatal outcome.Coil embolization for the endovascular exclusion of true common and proper hepatic artery aneurysms is safe and effective.