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CONGENITAL COMPLETE ATRIOVENTRICULAR BLOCK IN NEONATE: A
RARE CASE REPORT
M. Z. Azzuhdi*, M. Lailani*, Kino*, D. Hariyanto*
*Faculty of Medicine, Andalas University, Padang, Indonesia
Background: All arrhythmia types are rare conditions in neonate and children with the
estimated incidence is between 1 in 15,000-20,000 births. In this report, we presented a rare
case of congenital complete atrioventricular block in a tertiary hospital in Padang, Indonesia.
Case Summary: A neonate had moaning cry and bluish at birth. Prenatally, fetal
echocardiography showed no structural abnormality with bradycardia. On physical
examination, we found heart rate 48 bpm, SpO2 76%, and circumoral cyanosis. Postnatally,
electrocardiography showed total atrioventricular block. A permanent pacemaker was
implanted in the first week of life epicardially with VVIR mode, amplitude 5 V, P wave 0.4
mV, sensitivity 2.8 mV, lower rate 120 bpm, and upper rate 150 bpm. Pacing System Analyzer
(PSA) showed threshold of 2.5 V, R wave 9.8 mV, current 5.4 mA and impedance 816 ohms.
The chest X-ray showed epicardial wires placed over the left ventricular apex, and the
electrocardiography post implantation showed pacing rhythms.
Discussion: A rare condition of bradycardia was detected prenatally with fetal
echocardiography. Postnatally, the patient was diagnosed as congenital complete
atrioventricular block as electrocardiography showed total atrioventricular block. Serologic test
of anti-Ro/SSA and/or anti-La/SSB were not performed. The patient had pacing treatment and
showed a good outcome, yet a regular follow up was urged due to the risk of left ventricular
dysfunction in the future.
Keywords: congenital, arrhythmia, pacemaker

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cdscscdscdsc

  • 1. CONGENITAL COMPLETE ATRIOVENTRICULAR BLOCK IN NEONATE: A RARE CASE REPORT M. Z. Azzuhdi*, M. Lailani*, Kino*, D. Hariyanto* *Faculty of Medicine, Andalas University, Padang, Indonesia Background: All arrhythmia types are rare conditions in neonate and children with the estimated incidence is between 1 in 15,000-20,000 births. In this report, we presented a rare case of congenital complete atrioventricular block in a tertiary hospital in Padang, Indonesia. Case Summary: A neonate had moaning cry and bluish at birth. Prenatally, fetal echocardiography showed no structural abnormality with bradycardia. On physical examination, we found heart rate 48 bpm, SpO2 76%, and circumoral cyanosis. Postnatally, electrocardiography showed total atrioventricular block. A permanent pacemaker was implanted in the first week of life epicardially with VVIR mode, amplitude 5 V, P wave 0.4 mV, sensitivity 2.8 mV, lower rate 120 bpm, and upper rate 150 bpm. Pacing System Analyzer (PSA) showed threshold of 2.5 V, R wave 9.8 mV, current 5.4 mA and impedance 816 ohms. The chest X-ray showed epicardial wires placed over the left ventricular apex, and the electrocardiography post implantation showed pacing rhythms. Discussion: A rare condition of bradycardia was detected prenatally with fetal echocardiography. Postnatally, the patient was diagnosed as congenital complete atrioventricular block as electrocardiography showed total atrioventricular block. Serologic test of anti-Ro/SSA and/or anti-La/SSB were not performed. The patient had pacing treatment and showed a good outcome, yet a regular follow up was urged due to the risk of left ventricular dysfunction in the future. Keywords: congenital, arrhythmia, pacemaker