Strain imaging to assess early effects of successful percutaneous balloon mitral valvotomy on left atrium mechanics

Reddy, Sravan KN and Shetty, Ranjan K and Rao, Sudhakar M and Reddy, Sree Madhurya M (2019) Strain imaging to assess early effects of successful percutaneous balloon mitral valvotomy on left atrium mechanics. Egyptian Heart Journal, 71. pp. 1-6. ISSN 1110-2608

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Abstract

Background: Global left atrial strain (LA) has been used as a novel assessment tool to evaluate left atrial function. However, not much has been investigated to study the effect of percutaneous balloon mitral valvotomy (BMV) in patients with rheumatic severe mitral stenosis on global LA strain. We studied the relationship between global left atrial (LA) strain and severe mitral stenosis and the effect of BMV on LA strain. Results: A total of 29 patients satisfying the criteria for severe mitral stenosis underwent balloon mitral valvotomy (67% females; mean age, 39.53 ± 11.78 years). Global left atrial strain was assessed by speckle tracking echocardiography before and after valvuloplasty. Global LA strain was impaired in patients with severe mitral stenosis and improved 24–48 h following BMV (13.4 ± .75% vs 17.37 ± 6.95%, p < 0.001). There was a significant decrease in mitral mean gradient (MMG) (16.94 ± 6.62 mmHg vs 8.19 ± 4.01 mmHg, p < 0.001) and systolic pulmonary artery pressure (sPAP) (47.84 ± 9.07 mmHg vs 36.88 ± 7.69 mmHg, p < 0.001) after BMV. Mitral valve area (MVA) (1.045 ± 0.17 cm2 vs 1.94 ± 0.22 cm2, p < 0.001) significantly increased after BMV. Results were compared with 30 age- and sex-matched healthy controls. Conclusion: Global LA strain can be taken as an indicator of left atrial function, and its improvement following valvotomy may be taken as a good indicator of successful BMV

Item Type: Article
Uncontrolled Keywords: Balloon mitral valvotomy; Global left atrial strain; Speckle tracking echocardiography
Subjects: Medicine > KMC Manipal > Cardiology
Medicine > KMC Manipal > Medicine
Depositing User: KMC Library
Date Deposited: 02 Jul 2020 04:25
Last Modified: 02 Jul 2020 04:25
URI: http://eprints.manipal.edu/id/eprint/155227

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