Skip Navigation LinksHome > February 2011 - Volume 68 - Issue 2 > Coil Embolization of Unruptured Middle Cerebral Artery Aneur...
Neurosurgery:
doi: 10.1227/NEU.0b013e3182035fdc
Research-Human-Clinical Studies

Coil Embolization of Unruptured Middle Cerebral Artery Aneurysms

Kim, Byung Moon MD*; Kim, Dong Ik MD*; Park, Sung Il MD*; Kim, Dong Joon MD*; Suh, Sang Hyun MD†; Won, Yu Sam MD‡

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Abstract

BACKGROUND: Since the International Subarachnoid Aneurysmal Trial, endovascular coiling has been increasingly used as primary treatment option for ruptured or unruptured aneurysms that are feasible for coiling.

OBJECTIVE: To evaluate the feasibility and clinical and angiographic outcomes of coiling for unruptured middle cerebral artery aneurysms.

METHODS: The records of 70 consecutive patients with 76 unruptured middle cerebral artery aneurysms who underwent coiling were retrospectively evaluated.

RESULTS: Thirty-one aneurysms were treated by single-catheter, 18 by multicatheter, 11 by balloon-assisted, 13 by stent-assisted, and 3 by a combination of multicatheter and balloon-assisted techniques. Coiling was accomplished in 75 but failed in 1 aneurysm. One patient died of consequences of subarachnoid hemorrhage occurring 9 hours after coiling. One intraprocedural aneurysm rupture occurred, which was controlled by further coil insertions and left no sequelae. There were 1 cortical infarction and 1 basal ganglia infarction, both of which recovered completely. Treatment-related permanent morbidity and mortality rates were 0% and 1.4%, respectively. Postembolization control angiography revealed 40 complete, 30 neck remnant, and 5 incomplete occlusions. Clinical follow-up was available in all patients (mean, 25 months; range, 7-105 months). There was no subarachnoid hemorrhage during follow-up, but 1 death resulting from acute myocardial infarction occurred 3 months after coiling. None of the surviving patients had any neurological deterioration. Follow-up angiography was available in 69 aneurysms at 6 to 24 months (mean, 12 months). Three major and 6 minor recurrences were detected. All 3 major recurrent aneurysms were re-treated by coiling without any complications.

CONCLUSION: Most unruptured middle cerebral artery aneurysms could be safely treated by coiling with acceptable short-term to midterm outcomes. Our results warrant further study with a longer follow-up period in a larger population.

Copyright © by the Congress of Neurological Surgeons

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