Use this url to cite publication: https://hdl.handle.net/20.500.12512/99177
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Exercise capacity in patients with asymptomatic primary mitral regurgitation and preserved left ventricle systolic function / Rūta Žvirblytė, Ieva Merkytė, Eglė Tamulėnaitė, Agnė Saniukaitė, Jolanta Justina Vaškelytė
Type of publication
Tezės kitame recenzuojamame leidinyje / Theses in other peer-reviewed publication (T1e)
Title
Exercise capacity in patients with asymptomatic primary mitral regurgitation and preserved left ventricle systolic function / Rūta Žvirblytė, Ieva Merkytė, Eglė Tamulėnaitė, Agnė Saniukaitė, Jolanta Justina Vaškelytė
Publisher (trusted)
Lietuvos sveikatos mokslų universiteto Leidybos namai |
Date Issued
Date Issued |
---|
2019-08-05 |
Extent
p. 58-60.
Is part of
49th World medical tennis sociaty (WMTS) congress: international congress of preventive and sports medicine : 5-6 August 2019, Vilnius : book of abstracts / LSMU Sporto medicinos klinika. Kaunas : Lietuvos sveikatos mokslų universiteto Leidybos namai, 2019. ISBN 9789955156208.
Version
Originalus / Original
Description
ISBN 978-9955-15-620-8.
Bibliogr.: p. 60
Field of Science
Abstract
Introduction. Stress echocardiography is used for evaluation of regurgitation severity, symptoms, exercise capacity, functional changes of left ventricle (LV) and right ventricle (RV), pulmonary hypertension and may help in timing of surgery for patients with asymptomatic mitral regurgitation (MR). Patients with reduced exercise capacity during stress have more adverse outcomes and poorer prognosis*. Research aim. The aim of the study was to evaluate the changes of physiological parameters during stress and exercise capacity in patients with moderate asymptomatic primary MR. Research methods and organization. Resting and stress (veloergometry as per protocol 25 + 25 W) echocardiography were performed in 63 asymptomatic patients (age 56.12±13.97 years) with preserved left ventricle (LV) ejection fraction (EF; >50%). Subjects were divided into two groups: MR group (39 (61.9%) patients with moderate (grade 2-3) MR) and control group (24 (38.1%) patients without significant heart valves disease). Exercise variables including workload achieved in metabolic equivalents (METS) and Watts, total exercise time were recorded. Heart rate (HR) reserve as index of chronotropic response was calculated (peak HR - baseline HR)×100/(220-age-baseline HR). Statistical analyses were performed using the SPSS 20.0 software. The value of p<0.05 was considered as statistically significant. Results. There were no significant differences in clinical characteristics, changes of heart rate and blood pressure during stress between the groups (Table 1). Total exercise time (p=0.680), maximal workload achieved (METS (p=0.251) and Watts (p=0.217)) as well as parameters of LV function - LV EF (p=0.97) and global longitudinal strain (p=0.055) at rest did not differ significantly between the groups. However heart rate reserve used during stress was significantly higher in MR group (59.25±23.55% vs. 42.29±19.85%; p=0.023).
Type of document
type::text::conference output::conference proceedings::conference paper
ISBN (of the container)
9789955156208
Other Identifier(s)
(LSMU ALMA)990000992550107106
Coverage Spatial
Lietuva / Lithuania (LT)
Language
Anglų / English (en)
Bibliographic Details
2