[The effects of Pavulon (pancuronium bromide) on maternal circulation and metabolism as well as on fetal metabolism and postnatal condition at Caesarean section (author's transl)].

The effects of pancuronium bromide (Pavulon) on maternal circulation and metabolism as well as on fetal metabolism and postnatal conditions were studied in 13 women in late pregnancy (between gestational weeks 33 and 40) requiring Caesarean section in general anaesthesia. A comparison with results of 50 spontaneous deliveries without analgetics was performed. The average dosage of 4 mg did not effect the maternal blood pressure, fetal muscle tonus and cardiorespiratory adaption of the newborn. According to general anaesthesia we found in acid-base status a pH decrease with respiratory acidosis in comparison with spontaneous deliveries without anaesthetics, but pH and pCO2 were normalized 30 min after delivery. On the contrary, the oxygen tension were higher as at delivery as 30 min after delivery by Caesarean section. Although 1 minute Apgar score was lower than after spontaneous delivery the heart rate and frequency of ventilation were normal in every time and in the following minutes Apgar score was 7 to 10, too. An effect of pancuronium bromide to maternal or fetal carbohydrate metabolism could not be found. The less side effects on maternal cardiovascular system and the missing influence in postnatal condition recommand pancuronium bromide as a suitable relaxant in obstetrical anaesthesia, too.