ECG-Electrocardiogram, ILR-Implantable Loop Recorder, PDA-Patent ductus
arteriosus, VT-Ventricular tachycardia.
Table 1: Clinical features of patients who underwent LCSD
Case.3:
A 3 year 4-month-old boy, 2nd in birth order with
uneventful antenatal and immediate post-natal period. He had recurrent
episodes of syncopal attacks without seizures for 3 months of age
lasting for 2-3 min with spontaneous recovery (Total 7 episodes).
Mother has prolonged QTc interval. Elder sibling is healthy. He was
evaluated for syncope under Neurology and EEG was reported normal. He
also has delayed speech milestones and recently detected hearing loss.
ECG revealed prolonged QTc (670 ms) with T wave alternans (Figure.3).
He was immediately started on propranolol and developed significant
bradycardia. Hence, he subsequently underwent left cardiac sympathetic
denervation and PPI through left posterolateral thoracotomy.