BACKGROUND Posterior circulation tandem occlusions are poorly characterized in current literature. Data regarding endovascular approaches and outcomes in this patient subgroup is extremely limited. METHODS We conducted a retrospective analysis of a prospectively maintained database and identified 17 patients with posterior circulation tandem occlusions who underwent mechanical thrombectomy between 2014 and 2019. RESULTS Of 17 patients with posterior circulation tandem occlusion, the mean age was 55.76 ± 11.8 with 35.3% female. The mean NIHSS score on presentation was 17.2 ± 9.2. Tissue plasminogen activator was administered in 7 (41.2%) patients, stent-retrievers alone were used in 2 (11.8%), aspiration catheters alone were used in 2 (11.8%), a combination was used 12 (70.6%), and a self-expandable stent in 5 (29.4%). The mean number of device passes was 2.24 ± 2.02, recanalization failure occurred in 4 (23.5%) patients, the mean time from stroke onset to puncture was 6.9 ± 2.4 h, and the mean time from puncture to recanalization was 59.3 ± 26.6 min. Postprocedural symptomatic ICH occurred in 1 (5.9 %) patient, periprocedural ICH/SAH occurred in 2 (11.8%), periprocedural distal emboli occurred in 0 (0%), periprocedural vessel dissection occurred in 1 (5.9%), and periprocedural vessel perforation occurred in 1 (5.9%) patient. TICI score>2b was achieved in 13 (76.5%) patients. An improvement in NIHSS>3 at discharge occurred in 10 (58.8%) patients, and good outcomes (mRS score < 2) occurred in 7 (41.2%). The mean length of stay was 11.6 ± 12.2 days, and the mortality rate was 41.2%. CONCLUSION Endovascular intervention with mechanical thrombectomy is safe and feasible in patients with posterior circulation tandem occlusions.

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后循环串联闭塞：分类和技术

背景后循环串联闭塞在当前文献中的特征很差。关于该患者亚组的血管内方法和结果的数据极其有限。方法 我们对前瞻性维护的数据库进行了回顾性分析，确定了 2014 年至 2019 年间接受机械取栓的 17 名后循环串联闭塞患者。结果 在 17 名后循环串联闭塞患者中，平均年龄为 55.76 ± 11.8，女性占 35.3% . 就诊时的平均 NIHSS 评分为 17.2 ± 9.2。7 名（41.2%）患者使用了组织纤溶酶原激活剂，2 名（11.8%）患者单独使用了支架取出器，2 名患者（11.8%）单独使用了抽吸导管，12 名（70.6%）患者联合使用了自膨式支架 5 例（29.4%）。装置通过的平均次数为 2.24 ± 2.02，4 例（23.5%）患者发生再通失败，从卒中发作到穿刺的平均时间为 6.9 ± 2.4 小时，从穿刺到再通的平均时间为 59.3 ± 26.6 分钟。1 例 (5.9%) 患者发生术后症状性 ICH，2 例 (11.8%) 发生围手术期 ICH/SAH，0 例 (0%) 发生围手术期远端栓塞，1 例 (5.9%) 发生围手术期血管夹层，以及围手术期血管穿孔发生在 1 (5.9%) 名患者中。13 名 (76.5%) 患者的 TICI 评分>2b。10 名 (58.8%) 患者出院时 NIHSS>3 改善，7 名 (41.2%) 患者预后良好（mRS 评分 < 2）。平均住院时间为 11.6 ± 12.2 天，死亡率为 41.2%。