ABSTRACT
Wolff-Parkinson-White (WPW) syndrome is a rare congenital cardiac pre-ex citation syndrome encountered during pregnancy. However, WPW under this physiological process might be responsible for life threatening arrthymias leading to dangerous outcomes for both mother and the fetus. It is a ventricular pre-excitation syndrome of anterograde activation of the ventricle resulting from aberrant conduction pathway as well as the AV node. Very small percent of patients with WPW syndrome that is less than 1% are at risk of sudden cardiac death. Most of the antiarrthymic drugs are a threat to the fetus therefore careful choice of drug has to be made. Digoxin is the drug that is contraindicated in adults with WPW syndrome and some drugs like verapamil increase danger of ventricular fibrillation and therefore use of drugs are a topic of concern. We present a case of 25-year-old primi gravida 31 weeks 5 days woman was admitted with oligohydramnios. Patient known case of WPW syndrome not on treatment showing ECG changes ofshort PR interval and delta wave slurring along the QRS complex with heart rate of 98 beats/ min and echo demonstrated mild tricuspid regurgitation (TR) and mild pulmonary arterial hypertension (PAH). Patient was taken for emergency LSCS in view of Doppler changes (CPR less than 1) and delivered an alive preterm baby.