PMID- 31410734 OWN - NLM STAT- MEDLINE DCOM- 20220216 LR - 20240130 IS - 1532-6551 (Electronic) IS - 1071-3581 (Linking) VI - 28 IP - 4 DP - 2021 Aug TI - Diastolic dyssynchrony assessment by gated myocardial perfusion-SPECT in subjects who underwent cardiac resynchronization therapy. PG - 1413-1421 LID - 10.1007/s12350-019-01845-2 [doi] AB - BACKGROUND: Left ventricular diastolic dyssynchrony (LVDD) can be assessed by gated myocardial perfusion single-photon emission computed tomography (GMP-SPECT). LVDD is an area of interest in subjects who underwent cardiac resynchronization therapy (CRT). The aim of this post hoc analysis was to assess the role of LVDD in subjects with CRT who were followed up at 6-month period. MATERIAL & METHODS: Left ventricular diastolic dyssynchrony was assessed by GMP-SPECT at baseline and after CRT procedure in 160 subjects from 10 different cardiological centers. CRT procedure was performed as per current guidelines. Outcomes were defined as improvement in >/=1 New York Heart Association (NYHA) class, left ventricular ejection fraction (LVEF) by 5%, and reduction in end-systolic volume (ESV) by 15% and 5% points in Minnesota Living with Heart Failure Questionnaire. LVDD was defined as diastolic phase standard deviation >/=40 +/- 14 degrees . RESULTS: Improvement in NYHA functional class occurred in 105 (65.6%), LVEF in 74 (46.3%), decrease in ESV in 86 (53.8%), and Minnesota score in 85 (53.1%) cases. Baseline LV diastolic standard deviation was 53.53 degrees +/- 20.85 and at follow-up 40.44 degrees +/- 26.1283; (P < 0.001). LVDD was not associated with improvement in clinical outcomes at follow-up. CONCLUSION: CRT improves both systolic and diastolic dyssynchrony values at 6-month follow-up. LVDD at baseline is correlated with cardiac functionality at follow-up, but not with overall favorable clinical outcomes. CI - (c) 2019. American Society of Nuclear Cardiology. FAU - Alexanderson-Rosas, Erick AU - Alexanderson-Rosas E AD - Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano N masculine 1, Colonia Seccion XVI, Tlalpan, P.C. 14080, Mexico City, Mexico. alexandersonerick@gmail.com. AD - Department of Physiology, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico. alexandersonerick@gmail.com. FAU - Espinola-Zavaleta, Nilda AU - Espinola-Zavaleta N AD - Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano N masculine 1, Colonia Seccion XVI, Tlalpan, P.C. 14080, Mexico City, Mexico. FAU - Garcia, Ernest V AU - Garcia EV AD - Emory University, Atlanta, GA, USA. FAU - Peix, Amalia AU - Peix A AD - Nuclear Medicine Department, Institute of Cardiology, La Habana, Cuba. FAU - Massardo, Teresa AU - Massardo T AD - Hospital Clinico Universidad de Chile, Santiago, Chile. FAU - Pabon, Luz M AU - Pabon LM AD - Fundacion Valle del Lili, Cali, Colombia. FAU - Antonio-Villa, Neftali Eduardo AU - Antonio-Villa NE AD - Facultad de Medicina, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico. FAU - Carvajal-Juarez, Isabel AU - Carvajal-Juarez I AD - Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano N masculine 1, Colonia Seccion XVI, Tlalpan, P.C. 14080, Mexico City, Mexico. FAU - Mesquita, Claudio T AU - Mesquita CT AD - Hospital Universitario Antonio Pedro, Niteroi, Brazil. FAU - Jimenez-Heffernan, Amelia AU - Jimenez-Heffernan A AD - Hospital Juan Ramon Jimenez, Huelva, Spain. FAU - Patel, Chetan AU - Patel C AD - All India Institute of Medical Sciences, New Delhi, India. FAU - Karthikeyan, Ganesan AU - Karthikeyan G AD - All India Institute of Medical Sciences, New Delhi, India. FAU - Kumar, Alka AU - Kumar A AD - Dr. B L Kapur Memorial Hospital, New Delhi, India. FAU - Butt, Sadaf AU - Butt S AD - Oncology and Radiotherapy Institute (NORI), Islamabad, Pakistan. FAU - Kalaivani, Mani AU - Kalaivani M AD - All India Institute of Medical Sciences, New Delhi, India. FAU - Marin, Victor AU - Marin V AD - Fundacion Cardioinfantil, Bogota, Colombia. FAU - Morozova, Olga AU - Morozova O AD - Nuclear Medicine and Diagnostic Imaging Section, International Atomic Energy Agency, Vienna, Austria. FAU - Paez, Diana AU - Paez D AD - Nuclear Medicine and Diagnostic Imaging Section, International Atomic Energy Agency, Vienna, Austria. LA - eng PT - Journal Article DEP - 20190813 PL - United States TA - J Nucl Cardiol JT - Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology JID - 9423534 SB - IM MH - Aged MH - *Cardiac Resynchronization Therapy MH - *Cardiac-Gated Single-Photon Emission Computer-Assisted Tomography MH - Diastole MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - *Myocardial Perfusion Imaging MH - Prospective Studies MH - Stroke Volume MH - Ventricular Dysfunction, Left/*diagnostic imaging/therapy OTO - NOTNLM OT - Diastolic dyssynchrony OT - SPECT OT - nuclear medicine OT - resynchronization therapy EDAT- 2019/08/15 06:00 MHDA- 2022/02/17 06:00 CRDT- 2019/08/15 06:00 PHST- 2019/06/18 00:00 [received] PHST- 2019/07/23 00:00 [accepted] PHST- 2019/08/15 06:00 [pubmed] PHST- 2022/02/17 06:00 [medline] PHST- 2019/08/15 06:00 [entrez] AID - S1071-3581(23)00955-8 [pii] AID - 10.1007/s12350-019-01845-2 [doi] PST - ppublish SO - J Nucl Cardiol. 2021 Aug;28(4):1413-1421. doi: 10.1007/s12350-019-01845-2. Epub 2019 Aug 13.