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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Awareness of 'Systolic Anterior Motion' in Different Conditions
Monish Raut1, Arun Maheshwari1, Baryon Swain1
1Department of Cardiac Anaesthesia and Cardiac Surgery, Sir Ganga Ram Hospital, New Delhi, India.
Abstract:
Perioperative echocardiography, especially transesophageal echocardiography, is of paramount importance in evaluating and managing refractory hypotension, a potential cause of which is systolic anterior motion (SAM) of anterior mitral leaflet. Dynamically moving anterior mitral valve leaflet towards the left ventricular outflow tract (LVOT) is described as SAM. Although SAM was initially observed in patients with hypertrophic cardiomyopathy, it can also be seen in patients with complex dynamic anatomy of the left ventricle. Interestingly, SAM may or may not give rise to clinically significant LVOT obstruction. Hence, it is of paramount importance for perioperative physician to know such 'dynamic SAM' which can potentially and significantly affect and alter perioperative management.
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