The Effect of Slow Coronary Flow on Right and Left Ventricular Performance

Overview

Journal Med Princ Pract

Publisher Karger

Specialties General Medicine
Medical Education

Date 2013 Nov 13

PMID 24217066

Citations 13

Authors

Fatih Altunkas

Fatih Koc

Koksal Ceyhan

Atac Celik

Hasan Kadi

Metin Karayakali

Kerem Ozbek

Turgay Burucu

Ahmet Ozturk

Orhan Onalan

Affiliations

Soon will be listed here.

Abstract

Objective: To evaluate left and right ventricular functions using tissue Doppler echocardiography (TDE) and myocardial performance index (MPI) methods in patients with slow coronary flow (SCF) and to determine the relationship between these parameters and thrombolysis in myocardial infarction frame count in SCF patients.

Subjects And Methods: Thirty-five patients (20 males and 15 females) with SCF who underwent coronary angiography and 35 age- and sex-matched controls (14 males and 21 females) without SCF who underwent elective coronary angiography were enrolled in the study. Left ventricular (LV) and right ventricular (RV) functions were examined using conventional echocardiography and TDE.

Results: LV systolic myocardial velocity (Sm), early myocardial velocity (Em), late myocardial velocity (Am), and Em/Am ratio were similar in both the SCF and control groups; however, isovolumetric relaxation time (IRT) was higher in the SCF group compared to the control group (IRT: 99 ± 17 vs. 88 ± 20; p = 0.01). In patients with SCF, LV MPI was higher than in the control group, but this was not statistically significant (0.61 ± 0.11 vs. 0.56 ± 0.12; p = 0.07). The RV tricuspid annular velocities and MPI were similar in the SCF and control groups.

Conclusion: This study showed that SCF affected LV functions echocardiographically and could cause partially reduced LV performance. In addition, SCF did not affect RV functions echocardiographically.

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