NEJM:BNT162b2疫苗在以色列大规模接种后心肌炎不良事件风险研究

2021-12-07 MedSci原创 MedSci原创

接种BNT162b2疫苗,心肌炎不良事件绝对风险较低,但年轻男性接种疫苗后的心肌炎风险值得关注,多数心肌炎患者的临床症状较轻

BNT162b2 mRNA疫苗是全球首个大规模使用的新冠肺炎mRNA疫苗,2020年12月20日,以色列开展了一项全国疫苗接种运动,16岁以上人群接受间隔21天的两剂疫苗方案。截至2021年5月31日,约有510万以色列人完成了接种。近日研究人员就接种BNT162b2 mRNA疫苗后心肌炎风险进行了系统研究

研究人员回顾了2020年12月20日至2021年5月31日以色列所有心肌炎病例数据,考察第一次和第二次接种疫苗后(相隔21天)心肌炎发生率,计算第一次给药后21天和第二次给药后30天内观察到的心肌炎发病率,并与历史同期数据和未接种疫苗人群数据相比较。

研究期间,报告了304名心肌炎症状患者,其中21人诊断为其他病症,其余283例中,142例发生在接种BNT162b2疫苗后,其中有136例确诊或可能确诊为心肌炎。129名确诊或疑似心肌炎病例(95%)的临床表现为轻微;1例暴发性心肌炎患者死亡。第一次和第二次疫苗接种后,心肌炎总体风险差异为1.76/100000人,其中16-19岁男性人群间的差异最大(差异:13.73/100000人)。与基于历史数据的预期发病率相比,16-19岁男性人群接种疫苗后心肌炎标准化发病率为5.34,第二次接种后的发病率最高(13.60)。第二次疫苗接种后30天,与未接种者相比,完全接种者的心肌炎风险比为2.35,其中16-19岁的男性人群的风险最高(8.96),平均6637人中有1例心肌炎病例。

BNT162b2疫苗接种后心肌炎事件

研究发现,接种BNT162b2疫苗,心肌炎不良事件绝对风险较低,但年轻男性接种疫苗后的心肌炎风险值得关注,多数心肌炎患者的临床症状较轻

原始出处:

Dror Mevorach et al. Myocarditis after BNT162b2 mRNA Vaccine against Covid-19 in Israel. N Engl J Med,December 2,2021.

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    2022-03-04 ylz8403
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    2021-12-08 查查佳佳

    在门诊接受治疗,但仍有部分患者重

    0

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