Effect Analysis of Microsurgical Clipping and Endovascular Embolization for the Treatment of Middle Cerebral Artery Aneurysms

Objective: To evaluate the safety and effectiveness of microsurgical clipping and endovascular embolization for the treatment of middle cerebral artery aneurysm (MCAA).

Material and methods: The clinical data of 482 patients with MCAA treated with microsurgical clipping or endovascular embolization were analyzed retrospectively. According to whether the aneurysms were ruptured, patients were divided into a ruptured group and an unruptured group. Demographics, clinical manifestation, and postoperative complications were recorded.

Results: In the microsurgical clipping group (257 patients), there were 114 male and 143 female patients. The mean age was (55 ± 10) years and the mean course of disease was 3 (1, 36) days. The total numbers of MCAA were 274, including 179 ruptured aneurysms and 95 unruptured aneurysms. In the endovascular embolization group (225 patients), there were 98 male and 127 female patients. The mean age was (54 ± 11) years and the mean course of disease was 10 (1, 55) days. The total numbers of MCAA were 234, including 126 ruptured aneurysms and 108 unruptured aneurysms. There was no difference between the incidence of complications in the ruptured and unruptured groups. The outcome of the endovascular embolization group was better than the microsurgical clipping group in ruptured aneurysms (P = 0.000). The recurrence rate of the endovascular embolization group was greater than the microsurgical clipping group in ruptured aneurysms (P = 0.023).

Conclusions: Both microsurgical clipping and endovascular embolization were safe and effective methods for the treatment of MCAA, but patients with ruptured MCAAs treated with endovascular embolization were more likely to experience recurrence.