SynthesisFrontiers in cardiovascular medicine2026
Left bundle branch area pacing in children: a systematic review and meta-analysis of feasibility, safety, and outcomes.
Synthesis in Frontiers in cardiovascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
Background: Chronic right ventricular pacing in children has been associated with pacing-induced cardiomyopathy. While left bundle branch area pacing (LBBAP) offers a physiological alternative to preserve synchronous activation, its application in the paediatric population involves distinct technical and anatomical challenges. Objectives: To systematically evaluate the procedural feasibility, safety, and electromechanical outcomes of LBBAP in paediatric patients. Methods: PubMed/MEDLINE, Embase, Scopus, and Cochrane databases were searched using medical subject heading terms "left bundle branch area pacing," "LBBAP," "conduction system pacing," "paediatric," "children," "congenital heart disease," and similar keywords. Random-effects meta-analyses of proportions and means, subgroup analyses, and meta-regressions were conducted. Results: A total of 127 paediatric patients (≤ 18 years) in 8 cohorts were included. The pooled procedural success rate was 80.0%, with a low aggregate complication rate of 9.7% and satisfactory early-to-intermediate term capture thresholds. Statistical analyses revealed no significant clinical predictors of procedural feasibility. While current data did not identify patient size as a significant limitation, a numerically lower success rate was observed in complex congenital heart disease (CHD) compared to simple CHD (64.0% vs. 83.6%). The mean postprocedural QRS duration and left ventricular ejection fraction showed no significant changes. Notably, among the 50 patients with available echocardiographic data, LBBAP yielded a statistically significant reduction in left ventricular end-diastolic dimension Z-scores (pooled mean difference -1.12; Conclusions: Preliminary evidence suggests that LBBAP is a feasible physiological pacing strategy in paediatric patients that demonstrates an acceptable safety profile and is associated with reduced left ventricular dimensions. Although the impacts of patient size and complex congenital heart disease on procedural success did not reach statistical significance in this cohort, both factors likely remain notable technical challenges. Systematic Review Registration: (https://www.crd.york.ac.uk/PROSPERO/view/CRD420261287485) PROSPERO CRD420261287485.
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