Pacemaker implantation post congenital heart disease surgical repair: tertiary center experience.

European Journal of Pediatrics
Mohammad A EbrahimVadim G Lyubomudrov

Abstract

This was a retrospective study documenting all pacemaker implantations (PMIs) secondary to postoperative atrioventricular block. A total of 26 patients were included between 2011 and 2020. The incidence rate was 1.8%, with a median follow-up time of 4.5 years. At the time of the initial PMI, the median weight was 5 kg, and the median generator longevity was 45 months. Mean cardiopulmonary bypass and aortic clamp times were significantly longer among surgeries complicated with PMI (P≤ 0.05). Trisomy 21 patients were 4 times more likely to need a PMI (95% CI 1.8-9, P < 0.001). The mean Risk Adjustment in Congenital Heart Surgery and Society of Thoracic Surgery scores were higher in patients with PMI. All initial PMIs were epicardial (18 single chamber). Most patients underwent ventricular septal defect closure (isolated or complex), except for 5 patients who underwent left-sided surgery. Pacing-induced dilated cardiomyopathy occurred in 3 patients. All implanted leads were functional except for 2 leads with high thresholds and another biventricular system infection. There was a 31% rate of pacing reintervention.Conclusion: PMI resulted in significant morbidity but without mortality. The highest risk for PMI was left ventricular o...Continue Reading

References

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