A study of right ventricular function in pre- and post-valvular surgeries

Jadhav, Tejaswi and Kareem, Hashir and Nayak, Krishnananda and Pai, Umesh M and Devasia, Tom and Padmakumar, R (2018) A study of right ventricular function in pre- and post-valvular surgeries. Interventional Medicine & Applied Science, 10 (3). pp. 137-144. ISSN 2061-1617

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Abstract

Aims: The aim of this study is to compare tricuspid annular plane systolic excursion (TAPSE) in pre- and postoperative valvular heart surgery patients using M-mode imaging, to determine changes in tissue Doppler parameters among patients undergoing valvular heart surgery, and to analyze tissue deformation parameters of right ventricle (RV) and RV strain in pre- and postoperative patients. Materials and methods: This was anobservational, cross-sectional, single-center study that included 24 patients who underwent echocardiographic assessment prior to surgery, after surgery, and at 1-month follow-up. Assessment of left and right ventricles by M-mode echocardiography, evaluation of RV by 2D Doppler echocardiography, tissue Doppler imaging, and strain imaging were performed. Results: The TAPSE was significantly reduced immediately after surgery (14.8 ± 0.37 vs. 10.9 ± 0.26 mm), which was then improved on follow-up assessment (17.8 ± 34 mm) (p = 0.001). Tricuspid valve diastolic velocity was increased after surgery and then gradually declined at 1-month follow-up (p = 0.003). Presurgery RV free wall strain was found to be reduced, which was then improved during post-procedure analysis as well as on follow-up (p = 0.001). Conclusions: After cardiac valvular surgery, RV myocardial deformation showed a gradual improvement after 1 month, although there was an immediate decline in RV function postsurgery. The pattern of RV contraction, as showed by RV strain, varied postsurgery, which was remarkably increased in postoperative patients at the time of followup. Tissue deformation imaging being an emerging technique helps in the assessment of minute, subtle changes that occur in the RV myocardial function in cardiac patients undergoing valve surgery.

Item Type: Article
Uncontrolled Keywords: Echocardiography; heart valve; right ventricle; surgery; tissue doppler imaging.
Subjects: Allied Health > MCOAHS Manipal > Cardiology
Medicine > KMC Manipal > Cardiology
Depositing User: KMC Library
Date Deposited: 01 Jul 2020 06:27
Last Modified: 01 Jul 2020 06:27
URI: http://eprints.manipal.edu/id/eprint/154956

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