Effects of hypertension on left atrial structure and function evaluate d by ultrasonic acoustic quantification / 中华超声影像学杂志

ABSTRACT

Objective　To explore left atrial(LA) structur e and function changes in 86 cases of essential hypertension disease (EH) and ef fects of age,gender,hypertension duration,hypertension stage and left ventricula r function on them.Methods　 Using M-mode echocardiogram to detect LA diameter, Usi ng ultrasonic acoustic quantification (AQ) to detect LA area,LA systolic and dia stolic function,LV systolic and diastolic function. Results　①Compared with normal group, LA diameter and LA area we re larger in EH group, LA systolic and diastolic function were impaired. ② Gend er had no effect on LA structure and functione in EH patients; LA diameter and L A area dilated with age, LA systolic function was impaired with age. ③ Hyperten sion duration had no effect on LA structure and function in EH patients. ④LA d iameter and area dilated with hypertension stage. With the development of hypert ension, LA diastolic function was first impaired,then LA systolic function was a lso impaired.⑤LA structure and function had signifficant relationship with LV d iastolic function, LA might dilate and LA systolic function might be impaired wi th LV diastolic function damage.Conclusions　LA diameter and LA area are dilated and LA function i s impaired in EH patients, which changes become more signifficant with age. LA s tructure change and systolic function impairment have a relationship with LV dia stolic dysfunction.