心血管疾病患者常有心律不齐或心音强弱不等現象,因而容易产生心音脫漏或脉搏短絀(弱的心脏收縮不足以使周围动脉产生搏动而形成心率和脉率不一致),測血压时,于此期间就听不到血管搏动的间响。因此,往往出現一次測量的結果不可靠,两次測量的結果不一致,另外,在給动脉硬化性心脏病及高血压患者测量血压时,常可遇到所謂“听診間歇”現象,即:在第一 Patients with cardiovascular disease often arrhythmia or heart sound intensity ranging from the phenomenon, which prone to heart failure or pulse shortfalls (weak heart contraction is not enough to make the peripheral arteries and heart rate pulse rate is inconsistent), measuring blood pressure When, during this period can not hear the pulse of the pulse between. Therefore, the results of one measurement often appear to be unreliable, and the results of two measurements are inconsistent. In addition, when measuring blood pressure in patients with arteriosclerotic heart disease and hypertension, a so-called “auscultation interval” often occurs. That is, the first