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Direct mechanical thrombectomy in tPA-ineligible and -eligible patients versus the bridging approach: a meta-analysis.


ABSTRACT: BACKGROUND:Whether pretreatment with intravenous thrombolysis prior to mechanical thrombectomy (IVT+MTE) adds additional benefit over direct mechanical thrombectomy (dMTE) in patients with large vessel occlusions (LVO) is a matter of debate. METHODS:This study-level meta-analysis was presented in accord with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Pooled effect sizes were calculated using the inverse variance heterogeneity model and displayed as summary Odds Ratio (sOR) and corresponding 95% confidence interval (95%?CI). Sensitivity analysis was performed by distinguishing between studies including dMTE patients eligible for IVT (IVT-E) or ineligible for IVT (IVT-IN). Primary outcome measures were functional independence (modified Rankin Scale?2) and mortality at day 90, successful reperfusion, and symptomatic intracerebral hemorrhage. RESULTS:Twenty studies, incorporating 5279 patients, were included. There was no evidence that rates of successful reperfusion differed in dMTE and IVT+MTE patients (sOR 0.93, 95%?CI 0.68 to 1.28). In studies including IVT-IN dMTE patients, patients undergoing dMTE tended to have lower rates of functional independence and had higher odds for a fatal outcome as compared with IVT+MTE patients (sOR 0.78, 95%?CI 0.61 to 1.01 and sOR 1.45, 95%?CI 1.22 to 1.73). However, no such treatment group effect was found when analyses were confined to cohorts with a lower risk of selection bias (including IVT-E dMTE patients). CONCLUSION:The quality of evidence regarding the relative merits of IVT+MTE?versus dMTE is low. When considering studies with lower selection bias, the data suggest that dMTE may offer comparable safety and efficacy as compared with IVT+MTE. The conduct of randomized-controlled clinical trials seems justified.

SUBMITTER: Kaesmacher J 

PROVIDER: S-EPMC6327861 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Direct mechanical thrombectomy in tPA-ineligible and -eligible patients versus the bridging approach: a meta-analysis.

Kaesmacher Johannes J   Mordasini Pasquale P   Arnold Marcel M   López-Cancio Elena E   Cerdá Neus N   Boeckh-Behrens Tobias T   Kleine Justus F JF   Goyal Mayank M   Hill Michael D MD   Pereira Vitor Mendes VM   Saver Jeffrey L JL   Gralla Jan J   Fischer Urs U  

Journal of neurointerventional surgery 20180428 1


<h4>Background</h4>Whether pretreatment with intravenous thrombolysis prior to mechanical thrombectomy (IVT+MTE) adds additional benefit over direct mechanical thrombectomy (dMTE) in patients with large vessel occlusions (LVO) is a matter of debate.<h4>Methods</h4>This study-level meta-analysis was presented in accord with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Pooled effect sizes were calculated using the inverse variance heterogeneity model and displ  ...[more]

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