[Timely diagnosis and successful therapy of a fetal cardiac arrhythmia. Clinical case contribution to prenatal diagnosis].

The intention of this case report in its dramatic was to illustrate the importance of an intensive prenatal diagnosis in order succeed by an early treatment. During routine prenatal care a fetal intrauterine persistent severe tachycardia resistant to therapy was developed in the 32nd gestational week by chance. Further intensive ultrasonic diagnostics, trial of drug cardioversion, untimely caesarean section immediately following the first signs of fetal cardiac insufficiency, presence of a specialist in pediatric cardiology and instant therapy made it avoid the otherwise lethal event.