Abstract
In recent years, the development of the ultrasonic diagnostic methods in the field of obstetrics and gynecology has been remarkable, and intrapartum fetal monitoring (monito-ring), B-scope of ultrasonogram, M-mode ultrasound cardiogram, etc. have become indis-pensable tools for the fetal diagnosis before birth.
We have experienced a case of a 30-years-old primigravida. She kept a good progress without any abnormalities up to 37 weeks of gestation, but suddenly developed the irregularity of fetal heart sound at 38 weeks and was admitted to our hospital. She underwent fetal echocardiogram, fetal phonocardiogram, mother-induced fetal electrocardiogram, etc., which revealed the findings to be assumed as ventricular extrasystoles and the tentative diagnosis of congenital heart disease was made at that time.
However, the fetal arrhythmia gradually diminished with the development of labor pains, and the functions of the heart, lungs and other organs after birth by caesarean section were normal and any other abnormalities have not been noted up to 1 year and 6 months after birth.
Thus, in general, the mere presence of premature atrial contractions (P. A. C.) and premature ventricular contractions (P. V. C.) during pregnancy and at delivery cannot directly correlate with the presence of congenital cardiac malformation, and there are many opinions demonstrating no relation with fetal hypoxia symptoms. The case in this study may sub-stantiate the above points.
