Echocardiography Characteristics and Clinical Significance in Patients With Diastolic Mitral Regurgitation
10.3969/j.issn.1000-3614.2016.05.014
- VernacularTitle:二尖瓣舒张期反流超声心动图表现及临床意义
- Author:
Cuihua WANG
;
Yunzhou HUANG
;
Yadong ZHANG
;
Xuan GUO
;
Shuang LIU
;
Yang SHAO
;
Shengnan SHEN
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Diastolic mitral regurgitation
- From:
Chinese Circulation Journal
2016;31(5):477-479
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate echocardiography characteristics and clinical significance in patients with diastolic mitral regurgitation. Methods: A total of 15 patients with diastolic mitral regurgitation were studied including 1 patient with large volume of aortic regurgitation, 6 with atrial ifbrillation (AF), 2 with atrial lfutter, 1 with II° type I atrio-ventricular block (A-V block), 1 with II° type II A-V block and 4 with III° A-V block. The characteristics of mitral regurgitation were observed, the heart rates, left ventricular size were measured and left ventricular function was detected in all patients. Results: There was 1 large volume aortic regurgitation patient with diastolic mitral regurgitation occurred in slow iflling phase with less volume, it was less than positive velocity; 1 AF patient occurred in mid and late diastolic phase with less volume, it was obviously less than positive velocity; the rest 8 patients all occurred in mid and late diastolic phase, the velocity reached or surpassed to positive velocity. All 15 patients had slow heart rate, increased left heart, decreased left ventricular ejection fraction, tissue Doppler imaging showed that the early diastolic peak slowed down in mitral ring. There were 93% (14/15) patients having obvious systolic regurgitation. Conclusion: The time phase, quantity and velocity of diastolic mitral regurgitation have various characteristics, most of them associated with systolic regurgitation combining abnormal cardiac structure and function. Echocardiography provides important information for clinical treatment.
