Angiographic Recurrence after Endovascular Coil Embolization for Intracranial Aneurysm.
- Author:
Han Joong KEUM
1
;
Chul HU
;
Kum WHANG
;
Hyun Ho JUNG
;
Jhin Soo PYEN
;
Soon Ki HONG
;
Myung Sub LEE
Author Information
1. Department of Neurosurgery, Yonsei University, Wonju College of Medicine, Korea. chulhu@yonsei.ac.kr
- Publication Type:Original Article
- Keywords:
Intracranial aneurysm;
Endovascular therapy;
Recurrence
- MeSH:
Aneurysm;
Angiography;
Embolization, Therapeutic*;
Follow-Up Studies;
Humans;
Intracranial Aneurysm*;
Recurrence*;
Retrospective Studies;
Risk Factors
- From:Korean Journal of Cerebrovascular Surgery
2007;9(4):231-237
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVE: We have investigated the risk factors associated with angiographic recurrence of intracranial aneurysms after endovascular coil embolization in a retrospective manner. METHODS: From January 2000 to June 2005, 128 aneurysms in 114 patients were treated with coil embolization. Among them, 54 aneurysms in 51 patients were followed by repeated intraarterial angiography at 6, 12, 18, and 24 months post-embolization. Recurrence was defined when either coil compaction or aneurysm regrowth was identified on follow-up angiography. Patients were divided into stable and recurred groups according to angiographic recurrence. Clinical parameters, anatomical factors, and the degree of occlusion were retrospectively reviewed. RESULTS: The overall recurrence rate was 29% in our study. The diameter of the largest dimension of the fundus was larger in the recurred group of patients as compared to the stable group of patients (7.33+/-2.26 mm vs. 5.87+/-1.93mm, p = 0.048), and a significant rate of recurrence was seen in fundus size of the same or greater than 10 mm (41.7% vs 14.3%, p = 0.038). The coil packing density was significantly smaller in the recurred group of patients (p = 0.002), with a recurrence rate of 47.0% in cases with a coil packing density below 25% (p = 0.017). CONCLUSIONS: Our study showed that maximum aneurysm fundus size and coil packing density had a close correlation to recurrence. However, a larger number of patients with longer observation times may be needed to define the risk factors affecting angiographic recurrence.
