Tamilarasan, K (2011) Left Atrial Volume Index as a predictor of in hospital events in patients with Acute Myocardial Infarction - by 2D and Doppler Echocardiography. Masters thesis, Stanley Medical College, Chennai.
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Abstract
INTRODUCTION : Multiple Doppler echo-cardio graphic variables may be used to assess left ventricular (LV) diastolic function.1-3 However, these variables reflect the beat-to-beat interaction of LV filling pressures and ventricular compliance, making them sensitive to rapid alternations in ventricular preload and afterload. Because of opposing effects of preload and compliance on transmitral velocities, the mitral inflow pattern may appear normal (pseudonormal) despite abnormal filling pressures. Despite these limitations, Doppler indices of diastolic function have been shown to predict morbidity and mortality in patients with acute myocardial infarction (AMI). In particular, a restrictive diastolic filling pattern, characterized by an abbreviated mitral Ewave deceleration time, predicts a poor outcome. AIM OF THE STUDY : 1. To evaluate the role of left atrial volume index as a predictor of In- hospital events in patients with acute myocardial infarction by two Dimensional echocardiography and Doppler. 2. To assess the role of LA volume index as a prognostic tool, incremental to the standard Echocardiographic predictors of outcome, including LV systolic function (EF) and Doppler assessment of diastolic function. CONCLUSION : 1. The present study demonstrates that LA enlargement implies a poor prognosis in patients with AMI. It has proved as a predictor of Inhospital events in patients with acute myocardial infarction. 2. LA Volume index provides prognostic information incremental to clinical data and standard Echocardiographic predictors of outcome. Including LV systolic function and Doppler assessment of Diastolic Function. 3. Measurement of LA volume is simple and important tool which can be easily done and reproducible and may be incorporated in routine assessment of diastolic function. 4. Measurement of LA volume index could emerge as a simple and important tool for Risk stratification and as a guide for future surveillance and therapy in patients with Acute myocardial infarction if confirmed by perspective studies. 5. The utility of LA volume and function for monitoring cardiovascular risk and for guiding therapy is an evolving science and may prove to have a very important public health impact.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Left Atrial Volume Index ; ; patients ; Acute Myocardial Infarction ; 2D ; Doppler Echocardiography. |
| Subjects: | MEDICAL > Cardiology |
| Depositing User: | Kambaraman B |
| Date Deposited: | 06 Jul 2017 02:44 |
| Last Modified: | 06 Jul 2017 10:12 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/1068 |
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