Comments Echocardiography:
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Quantification of common paravalvular aortic regugitation challanging as most common critera fail. Holodiastolic abdominal aortic flow reversal a good sign of significant aortic regurgitation. Alternative: ((Diast. BP - LVEDP)/ Syst. BP)*100; values < 25 indicate relevant MR with reduced 1 year mortality 4
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No EOA provided by company
References:
- Transcatheter aortic valve implantation in patients with severe aortic stenosis and large aortic annulus, using the self-expanding 31-mm Medtronic CoreValve prosthesis, Nijhoff et al., J Thorac Cardiovasc Surg. 2014 Aug;148(2):492-9.e1. doi: 10.1016/j.jtcvs.2013.09.059. Epub 2013 Nov 19.
- Doppler haemodynamics and effective orifice areas oft Edwards Sapien and CoreValve transcatheter aortic valves. Spethmann et al., Eur Heart J Cardiovasc Imaging. 2012 Aug;13(8):690-6.
- Transcatheter aortic valve implantation: 3-year outcomes of self-expanding CoreValve prosthesis., Ussia et al. European Heart Journal 2012 Apr; 33(8):969-76.
- Aortic regurgitation index defines severity of peri-prosthetic regurgitation and predicts outcome in patients after transcatheter aortic valve implantation., Sinning et al., J Am Coll Cardiol. 2012 Mar 27;59(13):113-41.