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Recovery of regional systolic and diastolic myocardial function after acute myocardial infarction evaluated by two-dimensional speckle tracking echocardiography.
Clinical Physiology and Functional Imaging 2018 November 8
PURPOSE: The assessment of temporal changes in systolic and diastolic regional left ventricle function by two-dimensional speckle tracking echocardiography (STE) after successful reperfusion therapy of acute myocardial infarction (AMI).
METHODS: A total of 97 consecutive patients admitted with AMI and treated with successful percutaneous coronary intervention were included in this study. On days 1, 2, 3, 7, 30 and 180 following admission patients underwent transthoracic echocardiography with subsequent measurement of systolic longitudinal strain (SLS), systolic longitudinal strain rate (SRS) and early diastolic longitudinal strain rate (SRe) in left ventricular segments by speckle tracking technique.
RESULTS: The largest increase in regional SLS and SRS was observed between day 1 and 2. On days 3, 7, 30 and 180 further improvement was noticeable, but the changes were less significant. The highest prognostic value among STE parameters for predicting systolic function recovery after 6-month-long follow-up was achieved by measuring SLS on day 3 (area under the curve = 0·878).
CONCLUSIONS: The most of regional systolic function recovery occurs within the first 2 days. The recovery of regional diastolic function takes longer - the most significant part of improvement occurs within the first 7 days. STE parameters have prognostic value for predicting the improvement of systolic function after 180 days.
METHODS: A total of 97 consecutive patients admitted with AMI and treated with successful percutaneous coronary intervention were included in this study. On days 1, 2, 3, 7, 30 and 180 following admission patients underwent transthoracic echocardiography with subsequent measurement of systolic longitudinal strain (SLS), systolic longitudinal strain rate (SRS) and early diastolic longitudinal strain rate (SRe) in left ventricular segments by speckle tracking technique.
RESULTS: The largest increase in regional SLS and SRS was observed between day 1 and 2. On days 3, 7, 30 and 180 further improvement was noticeable, but the changes were less significant. The highest prognostic value among STE parameters for predicting systolic function recovery after 6-month-long follow-up was achieved by measuring SLS on day 3 (area under the curve = 0·878).
CONCLUSIONS: The most of regional systolic function recovery occurs within the first 2 days. The recovery of regional diastolic function takes longer - the most significant part of improvement occurs within the first 7 days. STE parameters have prognostic value for predicting the improvement of systolic function after 180 days.
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