原发性高血压左房功能评价及其临床意义

Clinical Assessment and Significance of Left Atrium Function in Primary Hypertension

正常的左房功能对维持高血压病患者的左室功能十分重要。左房功能主要包括蓄储功能、管道功能和辅泵功能。研究表明,高血压病患者左心房功能改变表现为左心房容量增加、收缩期泵血功能增加及左房被动排空功能降低。年龄、左心室重量指数、左心室构型、左房收缩前容积指数为影响左心房射血力的重要因素。因此,评价左房功能有助于临床早期诊断左室功能不全。

The full left atrium function is essential to maintain the left ventricular force in hypertension patients. The left atrium is involved in three functions： conserving, piping and sub-pumping. Hypertension tends to increase left atrial volume and systolic pumping but decrease its passive emptying. Age, left ventricular mass index, left ventricular remodelling and the left atrial prosystolic volume index are important factors which influence the left atrial ejection fraetion. This article assesses left alrial function, which can lead to earlier diagnosis of left ventricular dysfunction.