The prognostic value of left atrial function assessed by TDI after myocardial infarction (comparison between ST and non ST segment elevation myocardial infarction)
Journal Title: Journal of Medical Science And clinical Research - Year 2017, Vol 5, Issue 1
Abstract
Aim: The aim of this study is to assess the predictive value of LA function by TDI for assessment of the prognosis of patients with ST and non ST segment elevation (NSTE) myocardial infarction (MI). Methods and Results: The study included 41 patients with myocardial infarction who admitted to cardiology department at Tanta University Hospital divided as 25 patients with STEMI and 16 patients with NSTEMI, where clinical and echocardiographic parameters were collected within the first 72 hours of admission. Primary end point was assessed during the 3-month follow-up period which included cardiac mortality and/or rehospitalization for recurrent ACS or heart failure. Atrial function was assessed by conventional echocardiographic parameters and by Pulsed wave TDI that measured the mean atrial contraction velocity at the midsegments of interatrial septum, anterior, inferior, and lateral wall of LA (mLA-V). During the 3-month follow-up period, primary end point occurred in 16% (4/25) in STEMI patients and 18.8 % (3/16) in NSTEMI patients. STEMI patients mLA-V< 8 cm/sec emerged as an independent predictor for cardiac events (p. value = 0.001), in comparison to mLA-V< 6.3 cm/sec in NSTEMI patients with cardiac events. Also E/E` ratio showed a significant difference in patients with cardiac events in both groups. Conclusion: Assessment of LA function by TDI is a strong parameter in the prognosis and prediction of cardiac events in patients with ST and non ST segment elevation (NSTE) myocardial infarction (MI).
Authors and Affiliations
Mai Salama MD
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