PMID- 36712283 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230202 IS - 2297-055X (Print) IS - 2297-055X (Electronic) IS - 2297-055X (Linking) VI - 9 DP - 2022 TI - The loss of left atrial contractile function predicts a worse outcome in HFrEF patients. PG - 1079632 LID - 10.3389/fcvm.2022.1079632 [doi] LID - 1079632 AB - BACKGROUND: In chronic heart failure, high intracardiac pressures induce a progressive remodeling of small pulmonary arteries up to pulmonary hypertension. At the end of left atrial conduit function, pulmonary and left heart end-systolic pressures equalization might affect left atrial systole. In this single-center prospective study, we aimed to investigate whether peak atrial contraction strain (PACS), measured by speckle tracking echocardiography, was independently associated with prognosis in heart failure with reduced ejection fraction (HFrEF). MATERIALS AND METHODS: Outpatients with HFrEF and sinus rhythm referred to our echo-labs were enrolled. After clinical and echocardiographic evaluation, off-line speckle tracking echocardiography analysis was performed. Primary and secondary endpoint were cardiovascular death and heart failure hospitalization, respectively. Spline knotted survival model identified the optimal prognostic cut-off for PACS. RESULTS: The 152 patients were stratified based on PACS <8% (n = 76) or PACS >/=8% (n = 76). Patients with PACS <8% had lower left ventricle and left atrial reservoir strain and higher New York Heart Association (NYHA) class and left atrial volume index (LAVI). Over a mean follow-up of 3.4 +/- 2 years, 117 events (51 cardiovascular death, 66 heart failure hospitalizations) were collected. By univariate and multivariate Cox analysis, PACS emerged as a strong and independent predictor of cardiovascular death and heart failure hospitalization, after adjusting for age, sex, left ventricle strain, and E/e', LAVI (HR 0.6 per 5 unit-decrease in PACS). Kaplan-Meier curves showed a sustained divergence in event-free survival rates for the two groups. CONCLUSION: The reduction of PACS significantly and independently affects cardiovascular outcome in HFrEF. Therefore, its assessment, although limited to patients with sinus rhythm, could offer additive prognostic information for HFrEF patients. CI - Copyright (c) 2023 Mandoli, Pastore, Benfari, Setti, Maritan, Diviggiano, D'Ascenzi, Focardi, Cavigli, Valente and Cameli. FAU - Mandoli, Giulia Elena AU - Mandoli GE AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - Pastore, Maria Concetta AU - Pastore MC AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - Benfari, Giovanni AU - Benfari G AD - Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy. FAU - Setti, Martina AU - Setti M AD - Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy. FAU - Maritan, Luca AU - Maritan L AD - Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy. FAU - Diviggiano, Enrico Emilio AU - Diviggiano EE AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - D'Ascenzi, Flavio AU - D'Ascenzi F AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - Focardi, Marta AU - Focardi M AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - Cavigli, Luna AU - Cavigli L AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - Valente, Serafina AU - Valente S AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. FAU - Cameli, Matteo AU - Cameli M AD - Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy. LA - eng PT - Journal Article DEP - 20230111 PL - Switzerland TA - Front Cardiovasc Med JT - Frontiers in cardiovascular medicine JID - 101653388 PMC - PMC9874119 OTO - NOTNLM OT - HFrEF OT - heart failure OT - left atrium OT - prognosis OT - speckle tracking OT - strain COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/01/31 06:00 MHDA- 2023/01/31 06:01 PMCR- 2022/01/01 CRDT- 2023/01/30 04:00 PHST- 2022/10/25 00:00 [received] PHST- 2022/12/21 00:00 [accepted] PHST- 2023/01/30 04:00 [entrez] PHST- 2023/01/31 06:00 [pubmed] PHST- 2023/01/31 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fcvm.2022.1079632 [doi] PST - epublish SO - Front Cardiovasc Med. 2023 Jan 11;9:1079632. doi: 10.3389/fcvm.2022.1079632. eCollection 2022.