[Value of the abdominal electrocardiogram for cardiotocography (author's transl)].

The value of abdominal Electrocardiogram (abd. ECG) for cardiotocography has been studied prospectively in 183 ante- and 93 subpartum patients. The indications for using abd. ECG have been worked out and the influence of various factors on the quality of registration were tested. It was found that neither location of the placenta nor obesity nor the state of the membranes influenced the quality of abd. ECG-records. Furthermore abd. ECG was used successfully in cases with advanced labor.