Patient Selection for Biventricular Cardiac Resynchronization Therapy, His Bundle Pacing, and Left Bundle Branch Pacing

AbstractPurpose of ReviewHis bundle pacing (HBP) and left bundle branch pacing (LBBP) offer physiologic activation of the conduction system and their use is expanding. But choosing the best modality for an individual clinical scenario remains challenging. We review the evidence supporting HBP, LBBP, and traditional biventricular cardiac resynchronization therapy (BiV CRT), and relate this to appropriate patient selection.Recent FindingsTraditional BiV CRT has been established as effective in certain patients but is limited by a high rate of non-response. More precise ECG analysis and prognostic models that incorporate echocardiographic and clinical parameters will help predict which patients will respond to therapy. HBP has been shown to be safe and feasible for a range of bradyarrhythmias and as an alternative to BiV CRT. Short-term clinical outcomes are promising. This modality is limited, however, by its technically challenging implant, inability to correct distal conduction system disease, and occasionally high pacing thresholds. LBBP was developed to bypass some of HBP ’s shortcomings. It too has been shown to be safe and feasible, while lead implant is technically easier and pacing is effective at low thresholds. Clinical outcomes with LBBP have yet to be examined.SummaryTraditional BiV CRT remains an important pacing technique for patients with systolic dysfunction and more detailed prognostic models will refine patient selection. HBP and LBBP show great potential fo...
Source: Current Cardiovascular Risk Reports - Category: Cardiology Source Type: research