Open AccessThe Correlation Between Strain and Strain Rate Left Ventricle with Functional Capacity in Post Myocardial Infarction Patients with Heart Failure
Author(s) -
M Muqsith,
Budi Susetyo Pikir,
Muhammad Andika Rifqi
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/441/1/012194
Subject(s) - cardiology , medicine , heart failure , ventricle , myocardial infarction , strain (injury) , outpatient clinic , strain rate , materials science , metallurgy
Myocardial infarction (MI) may alter left ventricular (LV) systolic function, which, in turn, may reflect on functional capacity. Objective systolic function assessment using 2D speckle-tracking echocardiography is promising to assess the correlation between LV longitudinal strain and strain rate with functional capacity in post-MI patients with heart failure. A cross-sectional study was done on 33 consecutive post-MI patients with class I-II NYHA heart failure visiting the cardiology outpatient clinic of Dr. Soetomo General Hospital, Surabaya. The resting echocardiogram was taken, followed by a treadmill stress test using Naughton protocol. Appropriate statistical analyses were used to determine the correlation of systolic longitudinal strain and strain rate with exercise capacity. Study subjects were 69.7% males with age 58.45±6.2 years old. EF by Biplane was 40.55±8.26%; with global peak longitudinal strain –12.23±5.19%, and strain rate – 0.67±0.25s −1 ; and peak exercise capacity 3.69±1.8 METs. Using Pearson’s test, there was a strong negative correlation of systolic longitudinal strain and strain rate with functional capacity (r = –0.577, r = –0.607respectively; p<0.05). LV systolic longitudinal strain and strain rate were strongly correlated with functional capacity in post-MI patients with heart failure.