title: ["Antepartum noninvasive evaluation of persistant fetal cardiac arrhythmias" (author's transl)].
abstract: Fetal cardiac arrhythmias are increasingly more frequently discovered by cardiotocographic monitoring beginning at the 30th week of gestation. The computation of systolic time intervals represents a noninvasive technique to evaluate the cardiovascular performance of these fetuses. The pre-ejection period, ventricular ejection time and duration of systole of 41 healthy fetuses, two fetuses with supraventricular tachycardia and one with complete atrio-ventricular block were computed on the basis of abdominal fetal electrocardiogram and phonocardiogram. One fetus with supraventricular tachycardia had a pathologic prolonged pre-ejection period and duration of systole. This fetus became acidotic during delivery and died from persistent cardiac arrhythmia and congestive heart failure after 2 years. Further investigations should be done in order to prove, if a prolonged pre-ejection period and duration of systole have a significant value. According to the present experiences of the author a vaginal delivery can be recommended, if normal systolic time intervals exist in the arrhythmic fetus.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D005318:Fetal Heart; D006327:Heart Block / Q000175:diagnosis; D006801:Humans; D010701:Phonocardiography; D011247:Pregnancy; D013610:Tachycardia / Q000175:diagnosis
vernacular_title: "Antepartale nichtinvasive Abklärung persistierender Rhythmusstörungen des fetalen Herzens".