title: Haemodynamic Benefit of Cardiac Resynchronisation Therapy Requires Left Bundle Branch Block: A Case Report.
abstract: A 55-year-old woman with dilated cardiomyopathy and rate-dependent left bundle branch block had a cardiac resynchronisation therapy (CRT) device implanted. During implantation, the maximum rate of left ventricular pressure rise (dP/dt(max)) was measured invasively. This case presents a description of the acute negative effect of a left bundle branch block on dP/dt(max), and the different effect of CRT on left ventricular haemodynamic function in the presence and absence of a left bundle branch block.
authors.affiliation: Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, Q05.2.314, 3584 CX Utrecht, the Netherlands.
authors.forename: M D
authors.initials: MD
authors.lastname: Bogaard
authors.forename: G E
authors.initials: GE
authors.lastname: Leenders
authors.forename: P A
authors.initials: PA
authors.lastname: Doevendans
authors.forename: M
authors.initials: M
authors.lastname: Meine