A Study of Clinical and Echocardiographic evaluation of Right ventricular function in patients of first acute Inferior wall myocardial infarction with or without Right ventricular myocardial infarction
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 5
Abstract
Aims and objectives: Right ventricular (RV) function has not been studied widely after a myocardial infarction (MI). The current study was undertaken to study the RV function by tissue doppler imaging (TDI) in patients with inferior wall MI (IWMI) with or without right ventricular involvement (RVMI). Material And Results: Sixty patients with a first episode of acute MI (isolated IWMI:35, IWMI with RVMI: 25) and 60 healthy controls were included in the study. Association of RVMI was defined as a presence of ≥1 mm ST segment elevation in lead V4R of the ECG. From the echocardiographic apical 4-chamber view, the systolic motion of the tricuspid annulus, Peak systolic and Peak early and late diastolic velocities of the tricuspid annulus was recorded at the RV free wall with the use of 2-dimensional guided M-mode recordings and pulsed-wave Doppler tissue imaging respectively. Patients having both IWMI with RVMI as compared to patients with IWMI without RVMI had significantly less TAPSE(12.90 ± 3.64 mm vs.16.76 ± 5.05 mm ).TAPSE was reduced in IWMI with aand without RVMI patients as compared to controls as compared to controls. Mean Peak Systolic velocity, Mean Peak early and late diastolic velocity were significantly low (p<0.05) in patients of IWMI with RVMI as compared to patient of IWMI without RVMI [Sm- 0.10 ± 0.028 m/s vs. 0.13 ± 0.07m/s, E’- 0.084 ± 0.034 m/s vs. 0.10 ± 0.038 m/s, A’- 0.11 ± 0.05 m/s vs. 0.15 ± 0.08 m/s].The value of these velocities were significantly low[p<0.05] when patients of each of these groups was compared to their respective controls. Conclusion: Thus, TAPSE and TAV by using TDI can be used to assess RV function in patients with IWMI with or without RVMI. These parameters are significantly reduced in IWMI patients as compared to controls.
Authors and Affiliations
Dr Pritam Kataria
Keywords
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