What does this research mean for the field?

Conduction system pacing significantly reduces the risk of heart failure hospitalizations and the need for cardiac resynchronization therapy upgrades compared to right ventricular pacing in patients with bradycardia. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to compare the outcomes of conduction system pacing and right ventricular pacing in patients with bradycardia.

July 8, 2026Journal of Interventional Cardiac Electrophysiology

Outcomes of conduction system and right ventricular pacing in bradyarrhythmia indications: A systematic review and meta-analysis of propensity-score matched and randomized studies

Q: What are the key findings of this study?

Conduction system pacing significantly reduced heart failure hospitalizations (RR 0.31; 95% CI 0.21-0.46; p<0.001) and CRT upgrades compared to right ventricular pacing in bradycardia.

Q: What is the clinical evidence from this study?

Study design: Meta-Analysis. Population: Bradycardia (n=6064). Intervention: Conduction system pacing vs. Right ventricular pacing. Primary outcome: Heart failure hospitalizations (RR 0.31, 95% CI 0.21-0.46, p=<0.001).

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Key result

CSP reduces HF hospitalizations ~69% and CRT upgrades vs RVP in bradycardia.

RR 0.31
95% CI 0.21-0.46
P<0.001
n=6,064

Why the study?

Does conduction system pacing reduce heart failure hospitalizations and mortality compared to right ventricular pacing in patients with bradycardia indications?

Population

6,064 patients with bradycardia indications from 15 studies (8 RCTs, 7 propensity-score matched studies)

Comparison

Conduction system pacing (CSP) vs Right ventricular pacing (RVP)

Design

Meta-analysis

Authors

TKT Toni KhairallahAgricultural University of Georgia SASaman Faizollah Zadeh ArdebiliUniversity of Georgia MDM DandamudiMontefiore Medical Center

Discussion

Member takes

Implication

CSP may reduce HF hospitalizations versus RVP; extends RCT evidence for physiologic pacing in bradycardia.

Key Points

This research aims to compare the outcomes of conduction system pacing and right ventricular pacing in patients with bradycardia.
Systematic search across three databases for eligible studies on conduction system pacing and right ventricular pacing.
Meta-analysis of 15 studies including 8 randomized controlled trials and 7 propensity-score matched studies.
Pooling risk ratios and mean differences with 95% confidence intervals using a random-effects model.
CSP significantly reduced heart failure hospitalizations with RR:0.31 (95% CI:0.21–0.46; p < 0.001) compared to RVP.
CSP led to a modest improvement in left ventricular ejection fraction by MD:3.98% (95% CI:2.22–5.74; p < 0.001).
CSP showed a non-significant reduction in cardiovascular mortality (RR:0.49; 95% CI:0.23–1.04; p = 0.06).

Study Design

Type

Meta-Analysis (n=6,064)

Structured PICO

Does conduction system pacing reduce heart failure hospitalizations and mortality compared to right ventricular pacing in patients with bradycardia indications?

Population

6,064 patients with bradycardia indications across 15 studies (8 RCTs, 7 propensity-score matched studies) comparing conduction system pacing to right ventricular pacing.

Intervention

Conduction system pacing (CSP)

Comparator

Right ventricular pacing (RVP)

Outcome

Heart failure hospitalizationshard clinical

Main Result

Relative Risk: 0.31 (95% CI 0.21–0.46)

p-value: p=<0.001

Conduction system pacing significantly reduces heart failure hospitalizations and the need for CRT upgrades compared to right ventricular pacing in patients with bradycardia.

Limitations

Ongoing, large-scale RCTs are needed to verify the effect of CSP on mortality and its long-term safety

Cite This Study

Khairallah et al. (2026) conducted a meta-analysis in Bradycardia (n=6,064). Conduction system pacing vs. Right ventricular pacing was evaluated on Heart failure hospitalizations (RR 0.31, 95% CI 0.21-0.46, p=<0.001). Conduction system pacing significantly reduced heart failure hospitalizations (RR 0.31; 95% CI 0.21-0.46; p<0.001) and CRT upgrades compared to right ventricular pacing in bradycardia.

synapsesocial.com/papers/6a4dec5bd2ea289ef6284487 https://doi.org/10.1007/s10840-026-02396-6

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Outcomes of conduction system and right ventricular pacing in bradyarrhythmia indications: A systematic review and meta-analysis of propensity-score matched and randomized studies

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Main Result

Limitations

Cite This Study

Outcomes of conduction system and right ventricular pacing in bradyarrhythmia indications: A systematic review and meta-analysis of propensity-score matched and randomized studies

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Main Result

Limitations

Cite This Study

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