Predicting cardiovascular events in out-of-hospital patients presenting with atypical chest pain and complete left bund-le branch block:role of CTA and echocardiographic Global Longitudinal Strain
Guido Pastorini1
Fabio Anastasio1
Anna Botto2
Valentina Tardivo3
Mauro Feola1
1.Cardiology Division,Regina Montis Regalis Hospital,ASLCN1,Mondovi',Italy2.Intensive Care,Regina Montis Re-galis Hospital,ASLCN1 Mondovi',Italy3.School of Geriatry,University of Medicine,Turin,Italy
摘要：Background Out-of-hospital patients presenting with atypical chest pain and complete left bundle branch block(LBBB)have to be stratified for the presence of coronary artery disease and the risk of developing heart failure(HF).We investigated the pro-gnostic role of coronary CT-angiography(CTA)and echocardiographic global longitudinal strain(GLS)in those patients in a mid-term follow-up.
Methods Out-of-hospital patients with LBBB underwent echocardiography and a 64-slice CT angiography were evaluated ret-rospectively.Development of HF or a cardiovascular death were the events scheduled.
Results Seventy-eight patients(32 female;mean age:66.0±10.4 years were enrolled.During a follow-up of 33 months(IQR:17-77),one patient(1.5％)experienced a cardiovascular death,14 patients(17.9％)required urgent outpatient visits due to acute de-compensated HF(12 hospitalizations).Echocardiography showed a slightly reduced left ventricular ejection fraction(LVEF)(50.0％±9.8％)and GLS within the normal range(-16.2％±4.1％).CTA analysis showed coronary stenosis＞50％in 28 patients(35.9％).A high Agatston score(＞100)was observed in 29.5％.Notably,25 patients(32.1％)were diagnosed with left main coron-ary artery disease and 15 patients(16.7％)underwent revascularization during the follow up.Significant associations were ob-served between events and LVEF(P=0.001),diastolic dysfunction grade ≥ 2(P=0.02),GLS(P＜0.001),multiple coronary stenos-is(P=0.04)and Agatston score(P=0.05).Multivariate analysis confirmed the relationships with LVEF(R2=0.89,P＜0.001),dia-stolic dysfunction(R2=3.30,P=0.04),GLS(R2=1.43,P＜0.001),and Agatston score(R2=1.01,P=0.05).
Conclusions In patients with complete LBBB,CTA and GLS identified those at a high risk of development HF.
机标关键词：graphicglobalbranchstrainblockroleechoocar
论文发表日期：2024-07-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：8( 760-767 )