7月20日的NEJM发表的2篇报导反映,射血分数(EF)不降低的心力衰竭(简称心衰)病例日渐多见,造成一定数量的死亡。其中一篇反映,一般认为EF不降低者较为良性,实则其病死率与EF低者近似;另一篇则报导,目前仅EF低者改善生存率。这组作者称:“这些观察提示近一段时间较多心衰患者生存 Two articles published by NEJM on July 20 reported that heart failure (HF) cases with no decline in ejection fraction (EF) have become more common, resulting in a certain number of deaths. One of them said that it is generally believed that those who do not reduce EF are more benign, but in fact the mortality rate is similar to those with low EF; the other one reports that at present, only the EF low improves the survival rate. The authors said: "These observations suggest that more recent heart failure patients survive