[Severe cardiac arrhythmia secondary to perinatal asphyxia].

A complex case of heart arrhythmia, probably, secondary to perinatal asphyxia is described. It was not possible to confirm a diagnosis from among the most common types of arrhythmias that develop during the neonatal period, such as congenital AV blockage, supraventricular paroxysmal tachycardia or ventricular paroxysmal tachycardia because of the changing pattern of the pacemaker and the rhythm.