Bridging therapy improves functional outcomes and reduces 90-day mortality compared with direct endovascular thrombectomy in patients with acute posterior ischemic stroke: a systematic review and meta-analysis.

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    • Subject Terms:
      STROKE patients; ENDOVASCULAR surgery; BASILAR artery; FUNCTIONAL status; INTRACRANIAL hemorrhage; ISCHEMIC stroke
    • Abstract:
      Background: It remains unclear whether bridging therapy can achieve better neurologic outcomes than direct endovascular thrombectomy (EVT) in patients with posterior ischemic stroke. Methods: We systematically searched PubMed, EMBASE, and Cochrane databases with posterior artery occlusion treated with bridging therapy vs. EVT. Efficacy was assessed based on functional independence at 90 days and successful recanalization, whereas safety was assessed by mortality, rate of symptomatic intracranial hemorrhage (sICH), and occurrence of any hemorrhage. All data were analyzed with Review Manager software v5.3 and the risk of bias was determined using the Methodological Index for Non-randomized Studies. Results: We included 17 studies with a total of 3278 patients (1211 in the bridging therapy group and 2067 in the EVT group). Patients in the bridging group had a better functional outcome at 90 days, as evidenced by a higher proportion with a Modified Rankin Scale (mRS) score of 0–2 compared with the EVT group (odds ratio (OR) = 1.83, 95% confidence interval (CI): 1.54–2.19, P < 0.01), while no difference in mRS score of 0–3 (OR = 1.18, 95% CI: 0.96–1.45, P = 0.11). Patients in the bridging therapy group also had lower 90-day mortality rate (OR = 0.75, 95% CI: 0.59–0.95, P = 0.02). There were no significant differences between groups in rates of successful recanalization (OR = 0.96, 95% CI: 0.74–1.25, P = 0.77), sICH (OR = 1.27, 95% CI: 0.86–1.89, P = 0.24), and hemorrhage (OR = 1.22, 95% CI: 0.60–2.50, P = 0.58). Conclusions: Among patients with posterior ischemic stroke, bridging therapy may be superior to EVT in achieving a good functional outcome and lowering the mortality without increasing the risks of hemorrhage. [ABSTRACT FROM AUTHOR]