الفهرس 
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Abstract
The aim of this study is to evaluate the right atrial function by 2D speckle tracking imaging in patients with first inferior myocardial infarction with & without right ventricular involvement.
Patients and methods 60 patients with acute inferior MI were included in this study; 30 patients had ECG signs of inferior MI without RV infarction (group II) and 30 patients had ECG signs of inferior MI with RV infarction (group III). In all, 25 age-matched and sex-matched healthy volunteers were included as a control group (group I), using two-dimensional speckle tracking measurements of RA free wall longitudinal strain and SR in the apical four-chamber.
Results A statistically high significant difference was found between group III (Inferior MI with RT MI) versus group I (control) & group II (Inferior MI without RT MI) regarding RA septal wall & global systolic strain .(P<0.001),(P<0.008) & early diastolic strain rate (P=0.005),(P<0.001) respectively.