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Mentias A, Alashi A, Naji P, Gillinov AM, Rodriguez LL, Mihaljevic T, Suri RM, Grimm RA, Svensson LG, Griffin BP, Desai MY. Exercise capacity in asymptomatic patients with significant primary mitral regurgitation: independent effect of global longitudinal left ventricular strain. Cardiovasc Diagn Ther 2018; 8:460-468. [PMID: 30214861 DOI: 10.21037/cdt.2018.05.03] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Despite preserved left ventricular ejection fraction (LVEF), patients with significant primary mitral regurgitation (MR) often have reduced exercise capacity. In asymptomatic patients with ≥3+ primary MR undergoing rest-stress echocardiography (RSE), we sought to evaluate the incremental impact of left ventricular global longitudinal strain (LV-GLS) on exercise capacity. Methods A total of 660 asymptomatic patients with ≥3+ primary MR, non-dilated LV and LVEF ≥60% (mean age, 57±14 years, 66% men, body mass index or BMI 25±4 kg/m2) who underwent RSE at our center between 2001 and 2013 were included. Standard RSE data were obtained. Average resting LV-GLS was measured using Velocity Vector Imaging. Results Mean mitral effective regurgitant orifice, resting right ventricular systolic pressure (RVSP) and LV-GLS were 0.45±0.2 cm2, 31±12 mmHg and -21.7%±2%, respectively; 28% had flail mitral leaflet. Mean metabolic equivalents (METs) and post-stress RVSP were 9.9±3, and 46±15 mmHg; 28% achieved <100% age-gender predicted METs. No patient had ischemia or significant arrhythmias. On logistic regression, resting LV-GLS [odds ratio (OR), 1.40, 95% confidence interval (CI): 1.21-1.55, BMI (OR, 1.11, 95% CI: 1.06-1.17)] and resting RVSP 1.22 (1.02-1.49) were independent predictors of exercise capacity. Area under the curve for association between 100% age-gender predicted METs and various factors were as follows: (I) BMI (0.60, 95% CI: 0.55-0.65, P<0.001); (II) resting RVSP (0.57, 95% CI: 0.52-0.62, P=0.006) and LV-GLS (0.66, 95% CI: 0.61-0.70, P<0.001). Conclusions In asymptomatic patients with ≥3+ primary MR, non-dilated LV and preserved LVEF, LV-GLS is independently associated with exercise capacity, beyond known predictors.
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Affiliation(s)
- Amgad Mentias
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Alaa Alashi
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Peyman Naji
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - A Marc Gillinov
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - L Leonardo Rodriguez
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Tomislav Mihaljevic
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Rakesh M Suri
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Richard A Grimm
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Lars G Svensson
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Brian P Griffin
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Milind Y Desai
- Heart Valve Center, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
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Sato S, Fujita T, Shimahara Y, Hata H, Kobayashi J. Impact of Prosthesis-Patient Mismatch on Late Recurrence of Atrial Fibrillation After Cryomaze Procedure With Mitral Valve Replacement. Circ J 2014; 78:1908-14. [DOI: 10.1253/circj.cj-14-0431] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shunsuke Sato
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Tomoyuki Fujita
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Yusuke Shimahara
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Hiroki Hata
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Junjiro Kobayashi
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
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Bando K. Invited commentary. Ann Thorac Surg 2012; 93:1895-6. [PMID: 22632490 DOI: 10.1016/j.athoracsur.2012.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Revised: 03/25/2012] [Accepted: 04/02/2012] [Indexed: 10/28/2022]
Affiliation(s)
- Ko Bando
- Department of Cardiac Surgery, International University of Health and Welfare Hospital, 537-3, Iguchi, Nasushiobara City, Tochigi, Japan 329-2763.
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