多年来,临床医师认为,不论年龄大小,听到第四心音就表示有心脏病存在。但最近某些作者提出,在50～80岁的正常老年人,绝大多数能听到及记录到第四心音,他们在196例属于这一年龄组的门诊病人中,用心音图记录到第四心音的有143例(占73%),第四心音的存在与否和心血管疾病的有无并 Over the years, clinicians believe that, regardless of age, to hear the fourth heart sound that heart disease exists. However, some authors recently suggested that the vast majority of the normal aged 50 to 80 years old can hear and record the fourth heart sound. Of the 196 outpatients who belong to this age group, they recorded with the phonocardiogram There are 143 cases of four heart sounds (73%), the presence of the fourth heart sound and the presence of cardiovascular disease and