[Influence of elective abortion, up to the 12th week of pregnancy, on the dimensions of the cervix].

The conflicting data in the literature about the influence of the voluntary abortion on the cervix uteri and its effects has lead us to the idea to examine by ultrasound the changes in the cervix uteri as a result of elective abortion. 137 healthy women at the average age of 26.7 years have been examined, out of which 31 were pregnant for the first time. 15 with no child-births but with one previous voluntary abortion, 30 with no child-births but with more than one voluntary abortion, 35 with one child-birth and 26 with more than one child-birth. Out of the total 76 women, 64 come back for ultrasound examination of the parameters of the cervix uteri between the first and the second week after the abortion (10 + 3 days). The abortion has been done up to 12 guest. week under intravenous anesthesia, I Hegar dilatation of the cervical canal and vacuum aspiration. Each ease has been examined with an ultrasound (Kontron--France), supplied with a 7.5 MHz vaginal transducer. The results show that the measured length and width of the cervix uteri among the groups with differing number of elective abortions but with no child-births do not reveal a great statistical difference. With the increase of the number of abortions the width of the cervical canal shows a tendency to expand minimally. With women pregnant for first time and having elective abortion, of all parameters of the cervix only OECC remains a little wider than before the abortion. Child-births change dramatically the dimensions of the cervix uteri--the cervical canal expands, the cervix shortens and at the same time becomes wider. We can safely assume that the elective abortion under intravenous anesthesia within 8-9 g.w. with Hegar dilatation about 10 mm and vacuum aspiration has not shown traumatic effect on the cervix uteri according to its dimensions.