Incidence, risk factors, and outcome of early post-operative arrhythmia after open-heart surgery in the paediatric cardiac intensive care unit: a retrospective study

Post-operative arrhythmia occurred in 10.5% of paediatric cardiac surgeries, most frequently after Tetralogy of Fallot repair. Prolonged bypass, aortic cross-clamp times, hypomagnesemia, and high inotropic support were independent risk factors associated with increased morbidity.