Endovascular treatment of acute basilar artery occlusion: A systematic review and meta‐analysis of first‐line stent retriever versus direct aspiration.

Background: The best choice between first‐line aspiration and stent retriever for acute basilar artery occlusion remains controversial. This study aims to perform a systematic review and meta‐analysis comparing the stent retriever and direct aspiration about reported recanalization rates and periprocedural complications. Method: PubMed, Embase, Web of Science, Cochrane, and Clinical Trials were searched for the studies evaluating the efficacy and safety of first‐line aspiration versus stent retriever for acute basilar artery occlusion. A standard software program (Stata Corporation) was used for end‐point analyses. Statistical significance was defined as a p‐value less than.05. Results: A total of 11 studies were involved in the current study, including 1014 patients. Regarding postoperative recanalization, the pooled analysis identified a significant difference in successful recanalization (odds ratio [OR] = 1.642; 95% confidence interval (95% CI): 1.099–2.453; p =.015) and complete recanalization (OR = 3.525; 95% CI: 1.306–2.872; p =.001) between the two groups in favor of the first‐line aspiration. Concerning the complications, the first‐line aspiration could achieve a lower rate of total complication (OR =.359; 95% CI:.229–.563; p <.001) and hemorrhagic complication (OR =.446, 95% CI:.259–.769; p =.004) than stent retriever. No significant difference was observed in postoperative mortality (OR =.966; p =.880), subarachnoid hematoma (OR =.171; p =.094), and parenchymal hematoma (OR =.799; p =.720). In addition, the pooled results revealed a significant difference in procedure duration between the two groups in favor of aspiration (WMD = −27.630, 95% CI: −50.958 to −4.302; p =.020). However, there was no significant difference in favorable outcome (OR = 1.149; p =.352) and rescue therapy (OR = 1.440; p =.409) between the two groups. Conclusion: Given that the first‐line aspiration was associated with a higher rate of postoperative recanalization, a lower risk of postoperative complication, and a faster duration of the procedure, these findings support the aspiration may be more secure than a stent retriever. [ABSTRACT FROM AUTHOR]