scholarly journals Clinical outcomes of left bundle branch pacing compared to right ventricular apical pacing in patients with atrioventricular block

2021 ◽  
Vol 44 (4) ◽  
pp. 481-487
Author(s):  
Shigeng Zhang ◽  
Junfang Guo ◽  
Aibin Tao ◽  
Baowei Zhang ◽  
Zhonghua Bao ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Clinical Outcomes ◽  
Atrioventricular Block ◽  
Right Ventricular Apical Pacing

scholarly journals Clinical Outcomes in Patients With Left Bundle Branch Area Pacing vs. Right Ventricular Pacing for Atrioventricular Block

2021 ◽  
Vol 8 ◽  
Author(s):  
Xiaofei Li ◽  
Junmeng Zhang ◽  
Chunguang Qiu ◽  
Zhao Wang ◽  
Hui Li ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Clinical Outcomes ◽  
Atrioventricular Block ◽  
Primary Outcome ◽  
Biventricular Pacing ◽  
Left Ventricular Ejection ◽  
Ventricular Pacing ◽  
Unique Identifier ◽  
Right Ventricular Pacing

Background: Left bundle branch area pacing (LBBAP) is a novel pacing modality with stable pacing parameters and a narrow-paced QRS duration. We compared heart failure (HF) hospitalization events and echocardiographic measures between LBBAP and right ventricular pacing (RVP) in patients with atrioventricular block (AVB).Methods and Results: This multicenter observational study prospectively recruited consecutive AVB patients requiring ventricular pacing in five centers if they received LBBAP or RVP and had left ventricular ejection fraction (LVEF) >50%. Data on electrocardiogram, pacing parameters, echocardiographic measurements, device complications, and clinical outcomes were collected at baseline and during follow-up. The primary outcome was first episode hospitalization for HF or upgrade to biventricular pacing. LBBAP was successful in 235 of 246 patients (95.5%), while 120 patients received RVP. During a mean of 11.4 ± 2.7 months of follow-up, the ventricular pacing burden was comparable (83.9 ± 35.1 vs. 85.7 ± 30.0%), while the mean LVEF differed significantly (62.6 ± 4.6 vs. 57.8 ± 11.4%) between the LBBAP and RVP groups. Patients with LBBAP had significantly lower occurrences of HF hospitalization and upgrading to biventricular pacing than patients with RVP (2.6 vs. 10.8%, P <0.001), and differences in primary outcome between LBBAP and RVP were mainly observed in patients with ventricular pacing >40% or with baseline LVEF <60%. The primary outcome was independently associated with LBBAP (adjusted HR 0.14, 95% CI: 0.04–0.55), previous myocardial infarction (adjusted HR 6.82, 95% CI: 1.23–37.5), and baseline LVEF (adjusted HR 0.91, 95% CI: 0.86–0.96).Conclusion: Permanent LBBAP might reduce the risk of HF hospitalization or upgrade to biventricular pacing compared with RVP in AVB patients requiring a high burden of ventricular pacing.Clinical Trial Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03851315; URL: http://www.chictr.org.cn; Unique Identifier: ChiCTR2100043296.

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