Study for cardiac systolic synchronization in patients with ischemic cardiomyopathy
10.3969/j.issn.1008-0074.2015.03.29
- VernacularTitle:有关缺血性心肌病心脏收缩同步性的研究
- Author:
Chao WAN
;
Pin SUN
;
Yang JI
;
Shanglang CAI
- Publication Type:Journal Article
- Keywords:
Cardiomyopathies;
Echocardiography;
Myocardial contraction
- From:
Chinese Journal of cardiovascular Rehabilitation Medicine
2015;24(3):326-329
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore value of pulsed wave (PW) and tissue synchronization imaging (TSI) evaluate cardi-ac systolic synchronization in patients with ischemic cardiomyopathy (ICM) .Methods:A total of 50 ICM patients were enrolled as ICM group and 35 healthy volunteers without organic heart disease were regarded as healthy control group ,PW was used to measure mitral diastolic blood flow duration/RR interval (LVFT/RR) to evaluate synchroni-zation of left atrial and left ventricular synchronization ;interventricular mechanical delay (IVMD) was measured to evaluate left and right ventricular synchronization ;TSI software was used to measure mitral annular mean systolic peak velocity (LV-Sm) ,systolic time to peak (Ts) and Ts standard deviation (Ts-SD) of all segments in order to e-valuate left ventricular systolic synchronization .Results:Compared with healthy control group ,there were signifi-cant reductions in LVFT/RR [ (44.74 ± 1.58)% vs .(41.08 ± 4.65)% ] and LV-Sm [ (9.72 ± 0.53) ms vs .(4.09 ± 1.06) ms] ,and significant rise in IVMD [ (15.51 ± 5.52) ms vs .(41.96 ± 4.20) ms] and Ts-SD [ (16.47 ± 4.16) ms vs .(34.13 ± 11.68) ms] in ICM group , P<0.01 all;Ts of anterior wall ,inferior wall et .6 positions were significantly longer ,and its synchronization significantly reduced , P<0. 05 all ,percentages of the most de-layed systolic part of left ventricle were no significant differences between two groups (P> 0.05) .Conclusion:Compared with healthy control group ,left ventricular total systolic function ,left atrial&ventricular ,left&right ventricular synchronization and systolic synchronization within left ventricular significantly reduce in ICM patients .
