PMID- 38174616 OWN - NLM STAT- MEDLINE DCOM- 20240216 LR - 20240216 IS - 1549-8719 (Electronic) IS - 1073-9688 (Linking) VI - 31 IP - 2 DP - 2024 Feb TI - Coronary microvascular dysfunction as assessed by multimodal diagnostic imaging in patients with hypertrophic cardiomyopathy is related to the severity of cardiac dysfunction. PG - e12843 LID - 10.1111/micc.12843 [doi] AB - INTRODUCTION: Coronary microvascular dysfunction (CMD) plays a major role in hypertrophic cardiomyopathy (HCM) physiopathology but its assessment in clinical practice remains a challenge. Nowadays, innovations in invasive and noninvasive coronary evaluation using multimodal imaging provide options for the diagnosis of CMD. The objective of the present study was to investigate if new multimodal imaging diagnosis of CMD could detect HCM patients with more impaired cardiac function by left atrioventricular coupling index (LACI). METHODS AND RESULTS: A total of 32 consecutive patients with a confirmed diagnosis of HCM (62 +/- 13 years, 62% men) were prospectively screened for CMD using a multimodal imaging method. LACI was assessed by cardiovascular magnetic resonance imaging. Fifteen (47%) patients had CMD by multimodal imaging method. Patients with CMD presented a significantly higher LACI (48.5 +/- 25.4 vs. 32.5 +/- 10.6, p = .03). A multivariate logistic regression analysis demonstrated that CMD was independently associated with LACI (OR = 1.069, 95% CI 1.00-1.135, p = .03). CONCLUSION: Multimodal imaging diagnosis of CMD is applicable to HCM patients and is associated with more impaired cardiac function. CI - (c) 2024 John Wiley & Sons Ltd. FAU - Tran, Tien Vuong AU - Tran TV AD - Department of Cardiology, University Hospital, Grenoble, France. FAU - Djaileb, Loic AU - Djaileb L AD - Department of Nuclear Medicine, University Hospital, Grenoble, France. AD - Universite Grenoble Alpes, INSERM, CHU Grenoble Alpes, LRB, Grenoble, France. FAU - Riou, Laurent AU - Riou L AD - Universite Grenoble Alpes, INSERM, CHU Grenoble Alpes, LRB, Grenoble, France. FAU - Lantuejoul, Lea Ruez AU - Lantuejoul LR AD - Department of Radiology, University Hospital, Grenoble, France. FAU - Giai, Joris AU - Giai J AD - Universite Grenoble Alpes, Inserm CIC1406, CHU Grenoble Alpes, TIMC UMR 5525, Grenoble, France. FAU - Barone-Rochette, Gilles AU - Barone-Rochette G AUID- ORCID: 0000-0002-1146-0542 AD - Department of Cardiology, University Hospital, Grenoble, France. AD - Universite Grenoble Alpes, INSERM, CHU Grenoble Alpes, LRB, Grenoble, France. AD - FACT (French Alliance for Cardiovascular Clinical Trials), an F-CRIN network, Paris, France. LA - eng PT - Journal Article DEP - 20240104 PL - United States TA - Microcirculation JT - Microcirculation (New York, N.Y. : 1994) JID - 9434935 SB - IM MH - Male MH - Humans MH - Female MH - Coronary Circulation MH - *Cardiomyopathy, Hypertrophic/diagnostic imaging MH - *Myocardial Ischemia MH - Magnetic Resonance Imaging MH - Multimodal Imaging OTO - NOTNLM OT - cardiovascular magnetic resonance OT - coronary microvascular dysfunction OT - hypertrophic cardiomyopathy OT - left atrioventricular coupling index EDAT- 2024/01/04 11:44 MHDA- 2024/02/16 06:43 CRDT- 2024/01/04 05:38 PHST- 2023/12/05 00:00 [revised] PHST- 2023/08/16 00:00 [received] PHST- 2023/12/22 00:00 [accepted] PHST- 2024/02/16 06:43 [medline] PHST- 2024/01/04 11:44 [pubmed] PHST- 2024/01/04 05:38 [entrez] AID - 10.1111/micc.12843 [doi] PST - ppublish SO - Microcirculation. 2024 Feb;31(2):e12843. doi: 10.1111/micc.12843. Epub 2024 Jan 4.