PMID- 31515942 OWN - NLM STAT- MEDLINE DCOM- 20201013 LR - 20201013 IS - 1540-8167 (Electronic) IS - 1045-3873 (Linking) VI - 30 IP - 11 DP - 2019 Nov TI - Cardiac devices in patients with transthyretin amyloidosis: Impact on functional class, left ventricular function, mitral regurgitation, and mortality. PG - 2427-2432 LID - 10.1111/jce.14180 [doi] AB - BACKGROUND: The aim of our study was to investigate outcomes of patients with ATTR (amyloidosis and transthyretin) CA (cardiac amyloidosis) and implantable devices with respect to left ventricular ejection fraction (LVEF), mitral regurgitation (MR), New York Heart Association (NYHA) functional class, and mortality. METHODS: This was a retrospective observational cohort study of 78 patients with ATTR CA and implantable devices. During a mean follow-up of 42 months we investigated the impact of right ventricular (RV) pacing burden and biventricular (BiV) pacing on LVEF, MR severity, NYHA functional class, and mortality. RESULTS: Worsening MR occurred in 11% of patients with a RV pacing % <40% compared to 62% of those with a RV pacing burden >40% (P = .002). Similarly, worsening LVEF occurred in 26% of patients who were RV paced <40% and 89% of those who were RV paced >40% of the time (P < .0001) and worsening in NYHA functional class occurred in 22% and 89%, respectively (P < .0001). Improvement in LVEF, NYHA functional class, and MR severity occurred in 78%, 67%, and 67%, respectively, in those with BiV devices. Death occurred in 67% of patients in the cardiac resynchronization therapy group compared to 68% of those with a RV pacing burden <40% and 92% of those with a RV pacing burden >40%. CONCLUSION: A higher RV pacing burden is associated with deleterious remodeling and congestive heart failure in patients with ATTR CA, whereas BiV pacing is associated with improvements in LVEF, NYHA class, and degree of MR. BiV pacing should be considered in patients with ATTR CA and an indication for pacing. However, further larger prospective studies will need to be performed. CI - (c) 2019 Wiley Periodicals, Inc. FAU - Donnellan, Eoin AU - Donnellan E AUID- ORCID: 0000-0002-2878-9061 AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Wazni, Oussama M AU - Wazni OM AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Saliba, Walid I AU - Saliba WI AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Baranowski, Bryan AU - Baranowski B AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Hanna, Mazen AU - Hanna M AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Martyn, Michael AU - Martyn M AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Patel, Divyang AU - Patel D AUID- ORCID: 0000-0002-4274-6180 AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Trulock, Kevin AU - Trulock K AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Menon, Venu AU - Menon V AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Hussein, Ayman AU - Hussein A AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Aagaard, Philip AU - Aagaard P AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Jaber, Wael AU - Jaber W AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. FAU - Kanj, Mohamed AU - Kanj M AD - Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio. LA - eng PT - Journal Article PT - Observational Study DEP - 20190925 PL - United States TA - J Cardiovasc Electrophysiol JT - Journal of cardiovascular electrophysiology JID - 9010756 RN - Amyloidosis, Hereditary, Transthyretin-Related SB - IM MH - Aged MH - Aged, 80 and over MH - Amyloid Neuropathies, Familial/complications/mortality/physiopathology/*therapy MH - *Cardiac Pacing, Artificial/adverse effects/mortality MH - Cardiac Resynchronization Therapy MH - Cardiac Resynchronization Therapy Devices MH - Cardiomyopathies/complications/mortality/physiopathology/*therapy MH - Clinical Decision-Making MH - Databases, Factual MH - Disease Progression MH - Female MH - Heart Failure/etiology/mortality/physiopathology MH - *Hemodynamics MH - Humans MH - Male MH - Mitral Valve/*physiopathology MH - Mitral Valve Insufficiency/etiology/mortality/*physiopathology MH - *Pacemaker, Artificial MH - Recovery of Function MH - Retrospective Studies MH - Risk Factors MH - Severity of Illness Index MH - Time Factors MH - Treatment Outcome MH - *Ventricular Function, Left MH - Ventricular Function, Right OTO - NOTNLM OT - biventricular pacing OT - cardiac amyloidosis OT - cardiac devices OT - device therapies OT - heart failure EDAT- 2019/09/14 06:00 MHDA- 2020/10/21 06:00 CRDT- 2019/09/14 06:00 PHST- 2019/07/17 00:00 [received] PHST- 2019/09/05 00:00 [revised] PHST- 2019/09/07 00:00 [accepted] PHST- 2019/09/14 06:00 [pubmed] PHST- 2020/10/21 06:00 [medline] PHST- 2019/09/14 06:00 [entrez] AID - 10.1111/jce.14180 [doi] PST - ppublish SO - J Cardiovasc Electrophysiol. 2019 Nov;30(11):2427-2432. doi: 10.1111/jce.14180. Epub 2019 Sep 25.