Correlation between left atrial function and short term prognosis in patients with chronic heart failure

LI Ruyi; XU Yufang; YUAN Huabing

doi:10.3969/j.issn.1671-6450.2014.08.001

Abstract：Objective To observe the relationship between chronic heart failure patients with left atrial structure and function and the recent adverse cardiovascular events .Methods Ninty-two patients of chronic heart failure were enrolled , all patients were followed up for 3 months, changes of left atrial structure and function were detected by ultrasound , death from all causes, and then aggravate of heart failure and the incidence of hospitalization were recorded , another 30 healthy as control group, they were observed and compared .Results In 92 cases of patients with heart failure , 6 cases were lost of follow-up, event group were 23 cases, non-event group of 63 cases.(1) Left atrial structural change: compared with health control group, the left atrium in patients with congestive heart failure (LAVmax), P volume (LAVP), the minimum volume (LAVmin) and other structural indicators are expanding ( P <0.01);compared with the non-event group, event group's indexes of left ventricular structure were further expanded ( P <0.05).(2) The changes of left atrial function:compared with health con-trol group, left atrial volume storage (LARV), left atrial emptying volume (LASV), left atrial emptying fraction (LAAEF) in patients with heart failure were increased in different degrees ( P <0.01), and left atrial conduit volume (LACV) were de-creased ( P <0.01);compared with the non-event group, LAAEF, LACV were decreased in the event group ( P <0.05), while LASV, LARV had no significant change ( P >0.05).Conclusion Ultrasonic detection of left atrial structure and function in patients with chronic heart failure is a better predictor of recent adverse cardiovascular events .