心脏听诊是心脏病诊断的重要手段之一,三音心律往往是心脏听诊的一个难点。现将常见二音心律的听诊特点简要介绍如下,供基层工作的同志参考。 一、第三心音与舒张期奔马律: 1.第三心音:正常青少年及儿童常可听到此音,音调低沉而短促,颇似第二心音的回响。卧位、呼气末,在心尖部以钟型听诊器较易听到。抬高两下肢,腹部加压或发热、运行时,该音增强。第三心音无病理意义,它是由于血液急促流入心室 Cardiac auscultation is an important means of diagnosis of heart disease, the three-tone heart rhythm is often a difficult cardiac auscultation. Auscultation characteristics of common diathesis will now be briefly described below, for the work of the grassroots reference. First, the third heart sound and diastolic gallop: 1. The third heart sound: normal teens and children can often hear this tone, tone low and short, similar to the second heart sound echo. Supine, end-expiratory, in the apex to a bell-type stethoscope easier to hear. Elevate two lower extremities, abdominal pressure or fever, the operation, the sound enhancement. The third heart sound no pathological significance, it is due to rapid blood flow into the ventricle