Year : 2020  |  Volume : 23  |  Issue : 4  |  Page : 425--428

Comparison of flow-independent parameters for grading severity of aortic stenosis using intraoperative transesophageal echocardiography – A prospective observational study


S Nanditha1, Vishwas Malik2 
1 Department of Cardiac Anesthesia, Aster CMI, Bengaluru, Karnataka, India
2 Department of Cardiac Anesthesia, AIIMS, Ansari Nagar, New Delhi, India

Correspondence Address:
Vishwas Malik
Department of Cardiac Anesthesia, 7th Floor, AIIMS, Ansari Nagar, New Delhi
India

Introduction: Discrepancies have been reported in grading of severity of aortic stenosis. We propose to compare Aortic valve area by continuity equation, Dimensionless Index and Acceleration time/Ejection time in patients with documented severe aortic stenosis with normal left ventricular function by TEE after induction of anesthesia. This might give use insight about the best parameter we can rely on intra-operatively for decision making. Methodology: 60 patients with severe AS undergoing elective cardiac surgery were enrolled in our study. Post intubation trans-thoracic echocardiography (TEE) was performed and above mentioned parameters was noted. Results: 96.7 % of patients continued in severe AS category when AS was measured using AVA as echo parameter. So there is 3.3 % disparity. There was disparity in 13.3% of cases when DI was considered. And there was 43.3% disparity when AT/ET was considered. Conclusion: Perioperative grading of aortic stenosis continues to be a challenge for cardiac anesthesiologists. Multiple echocardiographic parameters have to be considered. We have found AVA and DI to have less disparity compared to AT/ET.


How to cite this article:
Nanditha S, Malik V. Comparison of flow-independent parameters for grading severity of aortic stenosis using intraoperative transesophageal echocardiography – A prospective observational study.Ann Card Anaesth 2020;23:425-428


How to cite this URL:
Nanditha S, Malik V. Comparison of flow-independent parameters for grading severity of aortic stenosis using intraoperative transesophageal echocardiography – A prospective observational study. Ann Card Anaesth [serial online] 2020 [cited 2021 Jul 27 ];23:425-428
Available from: https://www.annals.in/article.asp?issn=0971-9784;year=2020;volume=23;issue=4;spage=425;epage=428;aulast=Nanditha;type=0