据报道锐刺山楂 Crataegus oxyacantha有治疗轻度心衰的作用。以前多数研究是用含大量黄酮类和原花青素等活性物质的锐刺山楂果、叶和花提取物,仅观察了该植物对再灌注引起的心律失常的快速作用。作者进行此项研究的目的是考察长期服用该植物提取 Crataegus oxyacantha is reported to have a role in the treatment of mild heart failure. In the past, most researches have used the extracts of the fruit, leaves, and flowers of Radix Astragalus containing active substances such as flavonoids and procyanidins, and only observed the rapid effects of the plant on arrhythmias caused by reperfusion. The authors conducted this study to examine the long-term use of the plant extract