The development of pacing induced ventricular dysfunction is influenced by the underlying structural heart defect in children with congenital heart disease
- Balaji, Seshadri
- Sreeram, Narayanswami
DOIAbstract
Background: Right ventricular pacing can cause pacing-induced ventricular dysfunction (PIVD) correctable with biventricular pacing (BiVP). Factors associated with PIVD are poorly understood. Methods: We reviewed children receiving epicardial dual-chamber pacemakers for complete heart block (CHB) after congenital heart disease (CHD) surgery. PIVD was defined as% fractional shortening <15% improving after BiVP. Results: Between 2005 and 2014, 47 children <2 years developed CHB after CHD surgery. All had biventricular hearts and underwent epicardial dual chamber pacemaker implantation. Nine of the 47 (19%) developed PIVD. PIVD occurred in 0/10 with ventricular septal defect (VSD), 0/6 with tetralogy of Fallot, 2/6 with double outlet right vent...
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