PMID- 37573144 OWN - NLM STAT- MEDLINE DCOM- 20230908 LR - 20230928 IS - 1540-8159 (Electronic) IS - 0147-8389 (Linking) VI - 46 IP - 9 DP - 2023 Sep TI - Atrial paced rhythm and heart rate-dependent worsening of left atrial and ventricular function. PG - 1116-1123 LID - 10.1111/pace.14800 [doi] AB - BACKGROUND AND AIM OF THE STUDY: The response to the increase in heart rate (HR) could be characterized by failure in both left ventricular (LV) and left atrial (LA) functions. This study aimed to evaluate the relationship between the increase in paced HR and the changes in LV and LA functions, assessed by two-dimensional speckle tracking analysis. METHODS: In a group of patients with an implantable cardioverter defibrillator (ICD) or pacemaker, the atrial paced rhythm was progressively increased from 60 to 70, from 70 to 80, and from 80 to 90 beats per minute (bpm). For each paced HR, using two-dimensional speckle tracking analysis, LA reservoir (LAr), LA conduit (LAc), LA contraction (LAct), and LV global longitudinal strain (LV-GLS) were evaluated every 10 bpm. RESULTS: Of the 45 patients enrolled, a significant reduction in LAr was observed at higher HR. However, when the patients were dichotomized according to the HR-related response of LV-GLS, the worsening of LAr was observed in those with LV-GLS worsening and not in those without (maximum LAR absolute changes -2.7 +/- 7.2% vs. +2.7 +/- 7.2%, respectively, p .028). Moreover, the worsening of LA and LV strain measures was associated with an increase in the estimated filling pressures. CONCLUSIONS: In patients with atrial paced rhythm, the increase in HR could be associated with worsening of LA and LV functions, as assessed by two-dimensional speckle tracking analyses. These results offer new data on HR-related atrioventricular function and could be useful for guiding the optimal HR responsiveness of the implanted devices. CI - (c) 2023 The Authors. Pacing and Clinical Electrophysiology published by Wiley Periodicals LLC. FAU - Corbo, Maria Delia AU - Corbo MD AD - Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. FAU - Terlizzi, Vito di AU - Terlizzi VD AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. FAU - Barone, Roberta AU - Barone R AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. FAU - Pellegrino, Pierluigi AU - Pellegrino P AUID- ORCID: 0000-0003-2961-2783 AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. FAU - Goffredo, Giovanni AU - Goffredo G AD - Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. FAU - Pugliese, Rosanna AU - Pugliese R AD - Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. FAU - Correale, Michele AU - Correale M AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. FAU - Ieva, Riccardo AU - Ieva R AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. FAU - Di Biase, Matteo AU - Di Biase M AD - Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. FAU - Brunetti, Natale Daniele AU - Brunetti ND AD - Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. FAU - Iacoviello, Massimo AU - Iacoviello M AUID- ORCID: 0000-0001-9613-5062 AD - Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. AD - Cardiology Unit, University Polyclinic Hospital of Foggia, Foggia, Italy. LA - eng PT - Journal Article DEP - 20230812 PL - United States TA - Pacing Clin Electrophysiol JT - Pacing and clinical electrophysiology : PACE JID - 7803944 SB - IM MH - Humans MH - Heart Rate MH - *Atrial Fibrillation MH - *Ventricular Dysfunction, Left MH - Heart Atria MH - Ventricular Function, Left OTO - NOTNLM OT - atrioventricular function OT - pacing OT - two dimensional strain EDAT- 2023/08/13 00:43 MHDA- 2023/09/08 06:42 CRDT- 2023/08/12 21:23 PHST- 2023/07/05 00:00 [revised] PHST- 2023/04/23 00:00 [received] PHST- 2023/08/01 00:00 [accepted] PHST- 2023/09/08 06:42 [medline] PHST- 2023/08/13 00:43 [pubmed] PHST- 2023/08/12 21:23 [entrez] AID - 10.1111/pace.14800 [doi] PST - ppublish SO - Pacing Clin Electrophysiol. 2023 Sep;46(9):1116-1123. doi: 10.1111/pace.14800. Epub 2023 Aug 12.