The study of association of serum uric acid level with left ventricular mass and QRS duration in patients with chronic heart failure
10.3760/cma.j.issn.1008-1372.2017.05.022
- VernacularTitle:慢性心力衰竭患者血尿酸水平与左室质量指数、QRS间期相关性研究
- Author:
Sha LIU
;
Min GUO
- Keywords:
Heart failure;
Uric acid/ME;
Body mass index;
Ventricular function,left;
Electrocardiography
- From:
Journal of Chinese Physician
2017;19(5):721-724,728
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the association of serum uric acid (UA) level with ventricular hypertrophy,ventricular remodeling,and ventricular electromechanical activity dyssynchrony in patients with chronic heart failure by studying the correlation among left ventricular mass index (LVMI),QRS duration (QRSd) and UA.Methods Four hundred and fifty-three patients were selected in this study.Each patient received examinations of echocardiography,electrocardiogram (ECG),blood routine,and blood biochemistry.According to the different UA level,the patients were divided into group Ⅰ (UA≤360 μmol/ L),group Ⅱ (360 μmol/L ＜ UA≤420 μmol/L),group Ⅲ (420 μmol/L ＜ UA≤480 μmol/L),group Ⅳ (480 μmol/L ＜ UA ≤540 μmol/L),and group Ⅴ (UA ＞ 540 μmol/L).The differences in LVMI,QRSd,Left ventricular ejection fraction (LVEF),and NYHA class among five groups were compared,and the correlation among LVMI,QRSd and UA were analyzed.Results According to the different UA,from groups Ⅰ to Ⅴ,with increase in UA,LVMI values increased,there was significant difference among five groups [(93.89 ±30.25) g/m2,(94.44 ±32.46) g/m2,(101.04 ± 37.22) g/m2,(124.39 ± 63.22)g/m2,and (133.51 ±41.85) g/m2,respectively] (F =17.501,P ＜ 0.01).UA level correlated positively with LVMI (r =0.329 P ＜0.01).According to the different UA,from groups Ⅰ to Ⅴ,with increase in UA,QRSd prolonged,there was significant difference among five groups [(93.10 ± 14.56) ms,(92.77 ± 21.12)ms,(94.00±19.95)ms,(97.55 ±20.37)ms,and (101.73 ±25.57)ms,respectively] (F=2.516,P ＜ 0.05).UA level correlated positively with QRSd (r =0.167,P ＜ 0.01).According to the different UA,from groups Ⅰ to Ⅴ,with increase in UA,LVEF was reduced [(54.94 ± 10.26) ％,(53.06 ±13.43)％,(51.79 ±14.01)％,(45.82±13.90)％,and (4-3.76±12.01)％,respectively] (F=14.299,P ＜ 0.01),and the proportion of NYHA class Ⅳ increased (3.85％,4.29％,4.00％,21.05％,and 67.11％,respectively) (x2 =326.566,P ＜ 0.01).Conclusions With the increase in UA level in patients with chronic heart failure,LVMI value increased,QRSd prolonged,LVEF decreased,and cardiac function reduced.It indicated that the elevated level of UA might reflect the severity of the ventricular remodeling,and ventricular electromechanical activity in dyssynchrony and development of heart failure.
