PEDOF PROBE MEASUREMENT OF PEAK VELOCITY AVOIDS MISCLASSIFICATION OF AORTIC STENOSIS SEVERITY IN TWENTY-FIVE PERCENT OF PATIENTS WITH AORTIC STENOSIS
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Type: Presentation - doctors , Number in the programme: 3 | |||||||||||||||||||||||||||||
Marinigh R.1, Badano L.1, Cinello M.1, Pavoni D.1, Pezzutto N.1, Gianfagna P.1, Fioretti P.1 1 Cardiopulmonary Sciences, Az. Ospedaliero Universitaria S. Maria della Misericordia, Udine, Italy | |||||||||||||||||||||||||||||
PURPOSE The constraint of time allotted to perform echo examinations, and continuous miniaturization and improvement of signal-to-noise ratio of modern combined imaging and Doppler transducers (steerable) have forced some echocardiographers to assess aortic jet velocity signal using only steerable transducers (ST). The accuracy of aortic jet peak velocity measured using modern ST in comparison with Pedof probe (PP) has never been tested.
Using ST only, 3 pts out of 5 (60%) would have been misclassified as mild instead of moderate AS, and 10 pts out of 18 (55%) would have been misclassified as moderate instead of severe AS. CONCLUSIONS PP and ST measure comparable peak flow velocities through the AV from the apical approach however PP allows recording of higher velocities from right parasternal approach. Using the right intercostal approach and PP avoid misclassification of AS severity in 25% of pts with suspected AS. | |||||||||||||||||||||||||||||