An unruly case of functional two-to-one atrioventricular block

A newborn male was delivered via cesarean section at term due to acute fetal distress and fetal bradycardia, necessitating emergency pacemaker implantation. Physical examination revealed dysmorphic facial features and syndactyly in both upper and lower limbs. An electrocardiogram (ECG) showed a two-to-one atrioventricular (AV) block and a prolonged QT interval, along with biphasic T-waves in V3 (Figure 1A). During hospitalization, the infant experienced multiple seizures and episodes of hypoglycemia.

Source: Heart Rhythm - March 8, 2024 Category: Cardiology Authors: Muhammed Ali EKSI, Yasemin OZDEMIR SAHAN, Serhat KOCA, Ozcan OZEKE Source Type: research