Canadian Cardiovascular Society Guidelines on the Use of Cardiac Resynchronization Therapy: Evidence and Patient Selection

Abstract Recent landmark trials provided the impetus to update the recommendations for cardiac resynchronization therapy (CRT). This article provides guidance on the prescription of CRT within the confines of published data. A future article will explore the implementation of these guidelines. These...

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Bibliographic Details
Published in:Canadian journal of cardiology 2013-02, Vol.29 (2), p.182-195
Main Authors: Exner, Derek V., MD, MPH, Birnie, David H., MBChB, MD, Moe, Gordon, MD, Thibault, Bernard, MD, Philippon, François, MD, Healey, Jeffrey S., MSc, MD, Tang, Anthony S.L., MD, Larose, Éric, DVM, MD, Parkash, Ratika, MD, MSc
Format: Article
Language:English
Subjects:
Arrhythmias, Cardiac - therapy
Canada
Cardiac Resynchronization Therapy - standards
Cardiovascular
Heart Failure - therapy
Humans
Patient Selection
Practice Guidelines as Topic - standards
Societies, Medical
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Summary:Abstract Recent landmark trials provided the impetus to update the recommendations for cardiac resynchronization therapy (CRT). This article provides guidance on the prescription of CRT within the confines of published data. A future article will explore the implementation of these guidelines. These guidelines are intended to serve as a framework for the prescription of CRT within the Canadian health care system and beyond. They were developed through a critical evaluation of the existing literature, and expert consensus. The panel unanimously adopted each recommendation. The 8 recommendations relate to ensuring the adequacy of medical therapy before the initiation of CRT, the use of symptom severity to select candidates for CRT, differing recommendations based on the presence or absence of sinus rhythm, the presence of left bundle branch block vs other conduction patterns, and QRS duration. The use of CRT in the setting of chronic right ventricular pacing, left ventricular lead placement, and the routine assessment of dyssynchrony to guide the prescription of CRT are also included. The strength of evidence was weighed, taking full consideration of any risks of bias, as well as any imprecision, inconsistency, and indirectness of the available data. The strength of each recommendation and the quality of evidence were adjudicated. Trade-offs between desirable and undesirable consequences of alternative management strategies were considered, as were values, preferences, and resource availability. These guidelines were externally reviewed by experts, modified based on those reviews, and will be updated as new knowledge is acquired.
ISSN:0828-282X
1916-7075
DOI:10.1016/j.cjca.2012.10.006