Effect of assisted reproductive technology on multiple sclerosis relapses: Case series and meta-analysis.

Multiple Sclerosis : Clinical and Laboratory Research
Riley BoveT Chitnis

Abstract

Five case series reported increased relapse risk after assisted reproductive technologies (ART) in women with multiple sclerosis (MS), but small numbers and heterogeneous study design limit broader conclusions. To evaluate the risk of relapses after ART in an independent case series and in aggregated analyses of existing studies. We compared annualized relapse rate (ARR) in the 3 months after, and 12 months before, ART in (1) an unpublished cohort (Boston: prospectively collected relapses; 22 ART cycles), (2i) data pooled from Boston and five published studies (164 cycles), and (2ii) a meta-analysis of all case series published by 2017 (220 cycles; PRISMA and MOOSE guidelines). In the Boston cohort, mean ARR was not higher after ART than before (mean: 0.18 ± 0.85 vs 0.27 ± 0.55, p = 0.58). In the pooled analyses, ARR was significantly higher after ART for all clinical scenarios, including varying ART protocols (p ⩽ 0.01 for each). The meta-analysis confirmed an increased ARR after ART (mean difference (MD) = 0.92, 95% confidence interval (CI) = [0.33, 1.51], p = 0.01). These pooled data support an increase in ARR following ART. Reasons for local variation in ARR after ART, and consideration of MS treatments during conception at...Continue Reading

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Citations

Aug 6, 2021·Multiple Sclerosis Journal - Experimental, Translational and Clinical·Dessa SadovnickPenelope Smyth

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