Depth of implantation in relation to membranous septum as a predictor of conduction disturbances after transcatheter aortic valve implantation.

Multivariate regression model We performed two multivariate regression models, a pre-procedural model consisting of basal septal calcification which showed significant correlation with p < 0.001, and we also included two other ECG parameters which were approaching significance; pre-existing RBBB and QRS duration with p value 0.052 and 0.054 respectively.

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