Long-term Prognosis in Patients With Viable Myocardium in Left Ventricular Aneurysm and Arrhythmia Asseeed by18F-FDG Imaging
10.3969/j.issn.1000-3614.2015.12.005
- VernacularTitle:18F-氟代脱氧葡萄糖心肌代谢显像探测左心室室壁瘤的存活心肌及其合并室性心律失常对患者长期预后的影响
- Author:
Yijian YANG
;
Cuihong HOU
;
Congna TIAN
;
Weixue WANG
;
Hongxing WEI
;
Min ZHAO
;
Feng GUO
;
Kewei CHU
;
Qinghai GENG
;
Qi WANG
;
Nan JIANG
;
Zongyao ZHANG
;
Lixia ZHANG
;
Jian ZHANG
;
Yueqin TIAN
;
Xiaoli ZHANG
;
Xiujie LIU
- Publication Type:Journal Article
- Keywords:
Aneurysm;
Survival rate;
Radionuclide imaging
- From:
Chinese Circulation Journal
2015;(12):1152-1156
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To assess the impact of viable myocardium in left ventricular aneurysm (LVA) and ventricular arrhythmia on prognosis of LVA patients.
Methods: A total of one hundred and sixty LVA patients who received99Tcm-MIBI SPECT and18F-FDG PET were enrolled, including 139 male and 21 female with the mean age of (58 ± 10) years.There were 42 (26.3%) patients combining ventricular arrhythmia. LVEDV, LVESV and LVEF were detected. Semi-quantitative analysis of myocardium perfusion imaging was conducted, viable myocardium in aneurysm was deifned as the perfusion-metabolism mismatch score (MMS) ≥ 2.0. According to myocardium viability, the patients were divided into 2 groups: No viability group,n=97 and With viability group,n=63;based on ventricular arrhythmia, the patients were divided into another 4 groups: Group①, viability-, ventricular arrhythmia-, n=68, Group②, viability-, ventricular arrhythmias+,n=29, Group③, viability+, ventricular arrhythmias-,n=50 and Group④, viability+,ventricular arrhythmias+,n=13. The average follow-up time was (50 ± 7) months, the end point was cardiac death. The survival curve was obtained by Kaplan-Meier method and survival rates were compared by Log-rank analysis.
Results: The mean LVEF in 160 patients was (34 ± 11) %, cardiac death occurred in 19 (11.9%) patients. Long-term survival rates in Groups①,② and③ were 94.1%, 89.7% and 86.0%, respectively,P>0.05; while in Group④, the survival rate was 61.5%, which was lower than the other 3 groups,P=0.004. Multivariate Cox regression analysis showed that female (HR=5.101, 95% CI 1.853-14.044, P=0.002), GPET-ESV (HR=1.009, 95% CI 1.002-1.015,P=0.013), interaction between MMS and ventricular arrhythmia (HR=1.368, 95%CI 1.113-1.681,P=0.003) were independent risk factors for cardiac death;while surgical treatment (HR=0.199, 95% CI 0.054-0.742,P=0.016) could decrease the risk of cardiac death.
Conclusion: Patients with viable aneurysm and ventricular arrhythmia had poor long-term prognosis; while early and active treatment is needed for them (surgery with anti-arrhythmic therapy).
