PMID- 34332579 OWN - NLM STAT- MEDLINE DCOM- 20220103 LR - 20220103 IS - 1475-2840 (Electronic) IS - 1475-2840 (Linking) VI - 20 IP - 1 DP - 2021 Jul 31 TI - Aggravation of functional mitral regurgitation on left ventricle stiffness in type 2 diabetes mellitus patients evaluated by CMR tissue tracking. PG - 158 LID - 10.1186/s12933-021-01354-y [doi] LID - 158 AB - BACKGROUND: Functional mitral regurgitation (FMR) is one of the most common heart valve diseases in diabetes and may increase left ventricular (LV) preload and aggravate myocardial stiffness. This study aimed to investigate the aggravation of FMR on the deterioration of LV strain in type 2 diabetes mellitus (T2DM) patients and explore the independent indicators of LV peak strain (PS). MATERIALS AND METHODS: In total, 157 T2DM patients (59 patients with and 98 without FMR) and 52 age- and sex-matched healthy control volunteers were included and underwent cardiac magnetic resonance examination. T2DM with FMR patients were divided into T2DM patients with mild (n = 21), moderate (n = 19) and severe (n = 19) regurgitation. LV function and global strain parameters were compared among groups. Multivariate analysis was used to identify the independent indicators of LV PS. RESULTS: The T2DM with FMR had lower LV strain parameters in radial, circumferential and longitudinal direction than both the normal and the T2DM without FMR (all P < 0.05). The mild had mainly decreased peak diastolic strain rate (PDSR) compared to the normal. The moderate had decreased peak systolic strain rate (PSSR) compared to the normal and PDSR compared to the mild and the normal. The severe FMR group had decreased PDSR and PSSR compared to the mild and the normal (all P < 0.05). Multiple linear regression showed that the regurgitation degree was independent associated with radial (beta = - 0.272), circumferential (beta = - 0.412) and longitudinal (beta = - 0.347) PS; the months with diabetes was independently associated with radial (beta = - 0.299) and longitudinal (beta = - 0.347) PS in T2DM with FMR. CONCLUSION: FMR may aggravate the deterioration of LV stiffness in T2DM patients, resulting in decline of LV strain and function. The regurgitation degree and months with diabetes were independently correlated with LV global PS in T2DM with FMR. CI - (c) 2021. The Author(s). FAU - Zhang, Yi AU - Zhang Y AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Yan, Wei-Feng AU - Yan WF AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Jiang, Li AU - Jiang L AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Shen, Meng-Ting AU - Shen MT AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Li, Yuan AU - Li Y AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Huang, Shan AU - Huang S AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Shi, Ke AU - Shi K AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. FAU - Yang, Zhi-Gang AU - Yang ZG AUID- ORCID: 0000-0001-9341-7697 AD - Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China. yangzg666@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210731 PL - England TA - Cardiovasc Diabetol JT - Cardiovascular diabetology JID - 101147637 SB - IM MH - Aged MH - Diabetes Mellitus, Type 2/*complications/diagnosis MH - Diabetic Cardiomyopathies/*diagnostic imaging/etiology/physiopathology MH - Disease Progression MH - Female MH - Humans MH - *Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Mitral Valve/*diagnostic imaging/physiopathology MH - Mitral Valve Insufficiency/*diagnostic imaging/etiology/physiopathology MH - Predictive Value of Tests MH - Prognosis MH - Time Factors MH - Ventricular Dysfunction, Left/*diagnostic imaging/etiology/physiopathology MH - *Ventricular Function, Left PMC - PMC8325822 OTO - NOTNLM OT - Functional mitral regurgitation OT - Left ventricle OT - Magnetic resonance imaging OT - Strain OT - Type 2 diabetes mellitus COIS- The authors declare that there are no conflicts of interest. EDAT- 2021/08/02 06:00 MHDA- 2022/01/04 06:00 PMCR- 2021/07/31 CRDT- 2021/08/01 20:26 PHST- 2021/06/09 00:00 [received] PHST- 2021/07/22 00:00 [accepted] PHST- 2021/08/01 20:26 [entrez] PHST- 2021/08/02 06:00 [pubmed] PHST- 2022/01/04 06:00 [medline] PHST- 2021/07/31 00:00 [pmc-release] AID - 10.1186/s12933-021-01354-y [pii] AID - 1354 [pii] AID - 10.1186/s12933-021-01354-y [doi] PST - epublish SO - Cardiovasc Diabetol. 2021 Jul 31;20(1):158. doi: 10.1186/s12933-021-01354-y.