Comparison of right ventricular functions according to infarct localization using advanced echocardiographic methods in myocardial infarction with ST elevation
Journal Title: Dicle Tıp Dergisi - Year 2012, Vol 39, Issue 4
Abstract
Objectives: In this study, we aimed to compare the effects of infarct localization in patients with ST Elevated Myocardial Infarction (STEMI) on the right ventricular (RV) functions by using advanced echocardiographic methods. Materials and methods: A total of 89 patients with STEMI were included into the study and patients were divided to three groups as anterior, isolated-inferior and inferior+RV MI groups. In addition to standard echocardiographic mesurements, RV tissue doppler, RV Ejection Fraction (RVEF), Myocardial performance index (MPI) and TAPSE measurements of all patients were performed between 24-72 hours after the event. Results: Compared to groups, RV functions in inferior MI with RV involvement group were deteriorated. Tricuspid annular plane systolic excursion (TAPSE) value for the inferior MI with RV involvement (19±1mm) group were lower than those for Inferior MI group without RV involvement (23±1mm) and anterior MI (23±1mm) (p<0.05). The RV MPI value for inferior MI group with RV involvement (0.76±0.14) were found to be higher than those for anterior (0.64±0.1) and inferior MI (0.56±0.1) group without RV involvement (p<0.05). Peak Sm (r = -0.35, p = 0.01), TAPSE (r = -0.47, p<0.001) and RV EF (r = -0.46, p<0.001) showed a negative correlation with RV MPI value. Furthermore, RV tricuspid E/A rate (r = -0.19, p = 0.7) and RV free wall tissue doppler Em/Am rate (r = -0.26, p = 0.01) displayed a negative correlation with RV MPI value. Conclusions: Use of advanced methods addition to the conventional echocardiographic methods in STEMI patients, could produce more valuable information to evaluate RV functions and provide a positive impact on treatment strategies. Key words: Acute myocardial infarction, right ventricle, echocardiography, TAPSE, MPI
Authors and Affiliations
Mehmet Akıl, Faruk Ertaş, Hasan Kaya, Mehmet Bilik, Mustafa Oylumlu, Abdulkadir Yıldız, Kenan İltumur, Mehmet Ülgen
Keywords
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