Cardiac mechanical dyssynchrony in pacing in different ventricular parts in elderly patients using myocardial metabolic imaging
10.3969/j.issn.1009-0126.2024.06.002
- VernacularTitle:心肌代谢显像评价老年患者心室不同部位起搏的心室机械不同步性
- Author:
Xiaoyan SUN
1
;
Kailun XIA
;
Zhenqi GU
;
Yule NAN
;
Wei LI
;
Shouli LIN
;
Jiacheng TONG
;
Tong LU
Author Information
1. 200240 复旦大学附属上海市第五人民医院核医学科
- Keywords:
pacemaker,artificial;
myocardial metabolic imaging;
left bundle branch pacing;
right ventricular pacing
- From:
Chinese Journal of Geriatric Heart Brain and Vessel Diseases
2024;26(6):605-609
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of pacing in different parts of the ventricle on left ven-tricular mechanical asynchrony using myocardial metabolic imaging.Methods A total of 56 elderly patients undergoing permanent pacemaker implantation in our hospital from January to November 2023 were recruited and randomly divided into left bundle branch pacing(LBBAP)group and right ventricular pacing(RVP)group,with 28 patients in each group.Another 28 elderly patients who did not undergo pacemaker implantation surgery were selected as the control group.Within 1 week after pacemaker implantation,18F fluorodeoxyglucose(18F-FDG)positron emission tomo-graphy(PET)/CT myocardial metabolism imaging was performed to analyze PET myocardial metabolism images and evaluate left ventricular mechanical synchrony.Results The LVEF was significantly higher in the control group than the LBBAP group and RVP group[(67.68±9.61)％vs(62.71±11.33)％vs(57.36±16.07)％,P=0.012],but no such difference was seen between the LBBAP group and the RVAP group(P＞0.05).The LBBAP group had obviously lower pat-tern standard deviation(PSD),phase histogram bandwidth(PHBW),entropy,summed motion score(SMS),summed thickening score(STS),extent of abnormal motion(Mot Ext)and thicken-ing extent(Thk Ext)when compared with the RVP group(P＜0.01).There were no statistical significant differences in the terms of PSD,PHBW,Entropy,SMS,STS,Mot Ext,and Thk Ext between the LBBAP group and the control group(P＞0.05).Conclusion 18F-FDG PET/CT myo-cardial metabolic imaging can be used to evaluate left ventricular mechanical synchrony in pacing different parts of the ventricle,and LBBAP can obtain better left ventricular synchrony parame-ters than RVP,similar to the control group.
