Aortic Regurgitation Echocardiography
OVERVIEW
- causes: degeneration, infective endocarditis, dilated aortic root, aortic dissection.
SEVERITY ASSESSMENT
- large regurgitant jet on CFD
— if takes up more than 65% of LVOT then severe - flow reversal in aorta
- LV dilation
— LV end-systolic diameter > 5.5cm - large regurgitant orifice
- pressure half time < 300ms
— time taken for the maximum pressure gradient across the aortic valve to drop to half its normal value -> determined by the fall in velocity with continuous wave Doppler
Critical Care
Compendium
Chris is an Intensivist and ECMO specialist at The Alfred ICU, where he is Deputy Director (Education). He is a Clinical Adjunct Associate Professor at Monash University, the Lead for the Clinician Educator Incubator programme, and a CICM First Part Examiner.
He is an internationally recognised Clinician Educator with a passion for helping clinicians learn and for improving the clinical performance of individuals and collectives. He was one of the founders of the FOAM movement (Free Open-Access Medical education) has been recognised for his contributions to education with awards from ANZICS, ANZAHPE, and ACEM.
His one great achievement is being the father of three amazing children.
On Bluesky, he is @precordialthump.bsky.social and on the site that Elon has screwed up, he is @precordialthump.
| INTENSIVE | RAGE | Resuscitology | SMACC