Piérard, L.

patient surgery valve heart aortic regurgitation study echocardiography disease perioperative assessment therapy recommendation erasmus university rotterdam trial mortality non-cardiac surgery doppler imaging signi severity procedure figure regurgitant failure guideline outcome function abstr heart failure suppl management non-cardiac tricuspid european society society colour result ficant european event volume fication lea flet effect treatment cardiology right factor vena contracta valvular evaluation university value contracta intervention group method death pre-operative annulu randomized rotterdam pressure lea flets erasmu reduction atrial ischaemia downloaded artery noncardiac surgery velocity dysfunction aortic valve measurement b-blocker vena contracta width complication change