Lege Artis Medicinae

[Prenatal follow up of a complex cardiac malformation complicated with complete AV block]

SZABÓ István1, CSABAY László1, NÉMET János1, HAJDÚ Júlia1, PAPP Zoltán1

OCTOBER 27, 1993

Lege Artis Medicinae - 1993;3(10)

[In a congenital disorder of heart development where the complex cardiac malformation is pared with complete atrioventricular block heart rate is stabile between 50–60 beats/min. Transfer of atrial impulses through the AV node is fully blocked and the slow rhythmic heart beat is maintained by a ventricular pacemaker. In a case of such a complete cardiac malformation recognized in week 32 of gestation and the AV block complication caused stabile 57–58 beat/min bradycardia. 2-di mensional, pulsed and color Doppler ultrasonography was used to identify the disorder and to follow up the intrauterine condition of the fetus. Cardiotocography (CTG) could not generate appreciable results at such a low heart rate. During observation no centralization of fetal circulation causing intrauterine hypoxia was recorded. Updated knowledge on the pathogenesis and obs tetrical management of the fetal third degree AV block is also presented. In this case ultrasonography allowed clear-cut identification of the disorder and also ensured correct evaluation of the intrauterine status of the fetus when other diagnostic methods for evaluation were not applicable. ]

AFFILIATIONS

  1. Semmelweis Orvostudományi Egyetem I. sz. Szülészeti és Nőgyógyászati Klinika

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