1. (A and B) Pressure tracings showing haemodynamic results pre-BAV (A) and post-BAV (B) procedure.
(A and B) Pressure tracings showing haemodynamic results pre-BAV (A) and post-BAV (B) procedure. Pre-BAV, there is a significant transvalvular gradient of 72 mm Hg and haemodynamically significant aortic stenosis. Post-BAV simultaneous aortic-LV pressure assessment demonstrates a significant reduction in transvalvular gradient to 13 mm Hg demonstrating therapeutic efficacy of the BAV. Incidentally, there is a new onset of Left Bundle Branch Block (LBBB) post-BAV in this patient as demonstrated by prolongation of the QRS duration on the rhythm strip on top. This may be a transient phenomenon and rate-related postburst pacing or may be permanent due to anatomical proximity of the AV node and conduction tissue to the aortic annulus. AV, atrioventricular; BAV, balloon aortic valvuloplasty; LV, left ventricular.
Thomas R Keeble et al. Open Heart 2016;3:e000421
©2016 by British Cardiovascular Society