医学
危险系数
上消化道出血
内科学
随机化
胃肠道出血
置信区间
肝硬化
输血
不利影响
外科
随机对照试验
胃肠病学
内窥镜检查
作者
Càndid Villanueva,Alan Colomo,Alba Fernández Bosch,Mar Concepción,Virginia Hernández–Gea,Carles Aracil,Isabel Graupera,María Poca,Cristina Álvarez–Urturi,Jordi Gordillo,Carlos Guarner‐Argente,Miquel Santaló,Eduardo Muñíz,Carlos Guarner
标识
DOI：10.1056/nejmoa1211801
摘要
The hemoglobin threshold for transfusion of red cells in patients with acute gastrointestinal bleeding is controversial. We compared the efficacy and safety of a restrictive transfusion strategy with those of a liberal transfusion strategy.
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