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A comparative study using two dose regimens (200 microg or 400 microg) of vaginal misoprostol for pre-operative cervical dilatation in first trimester nulliparae.

OBJECTIVE: To determine the optimal dosage and dosing interval for the use of misoprostol administered vaginally for pre-operative cervical dilatation. DESIGN: Prospective double-blind randomised study. SETTING: Fertility Control Centre, National University Hospital, Singapore. METHODS: Women were randomly allocated to either the 200 microg or the 400 microg misoprostol group. Vacuum aspiration was performed at either three or four hours after the insertion of misoprostol tablets. Using Hegar's dilatator, degree of cervical dilatation before operation was measured. Other parameters assessed included the amount of additional dilatation required (if it was < Hegar 8), pre-operative and intra-operative blood loss, and associated side effects. RESULTS: For the 200 microg misoprostol group, only seven (23.3%) achieved a dilatation of > or = 8 mm compared with 29 women (96.7%) in the 400 microg misoprostol group. The odds ratio was 95.3 (95% CI 10.9-830.9) for 400 microg misoprostol for successful pre-operative cervical dilatation of > or = 8 mm. The mean cervical dilatation for 400 microg and 200 microg misoprostol was 8.2 mm and 6.4 mm, respectively (P < 0.001). The use of 400 microg misoprostol with an evacuation interval of three hours appears to be the optimal dosage and evacuation time interval. Increasing the time interval beyond three hours did not confer any additional advantage on the rate of successful cervical dilatation but was instead associated with an increase in side effects such as vaginal bleeding, lower abdominal pain and the appearance of products of conception at the cervical os. However, besides vaginal bleeding, no significant differences in the frequency of these side effects were demonstrated. CONCLUSION: This first report on the comparison of differing dosages and time intervals to determine the optimal dosage treatment schedule shows that the vaginal application of 400 microg misoprostol for at least three hours is optimal for pre-operative cervical dilatation before vacuum aspiration in first trimester nulliparae.

Abdominal Pain↗

Changed pattern in the use of episiotomy in Sweden.

OBJECTIVE: To study changes in the use of episiotomy since 1989, controlling for variables such as severe tears, epidural anaesthesia, duration of the second stage of labour, instrumental deliveries, birthweight and maternal position at delivery. DESIGN: Retrospective study. Data were obtained from original birth records and questionnaires. SETTING: Huddinge University Hospital and all labour wards (n = 62) in Sweden. POPULATION: 10,661 women who were delivered vaginally (4575 nulliparae, 6086 multiparae) between 1992 and 1994, and 3366 nulliparae delivered in all Swedish hospitals during the month of March 1995. MAIN OUTCOME MEASURES: Episiotomy rates, severe tears and instrumental deliveries. RESULTS: The rate of episiotomy was 1% and of severe tears 0.6% among multiparae delivered vaginally (including instrumental deliveries) at Huddinge University Hospital between 1992 and 1994. The rate of episiotomy was 6.6% and of severe tears 2.3% among nulliparae. Vacuum extraction and epidural anaesthesia were more commonly associated with episiotomy. Factors significantly associated with severe tears were infant birthweight > or = 4000 g, vacuum extraction and episiotomy. In all Swedish labour wards in 1995 the mean incidence of episiotomy in nulliparae was 24.5%, a significant decrease from 33.7% in 1989. Wide variations occurred between hospitals (4%-50%). CONCLUSION: The use of episiotomy was much reduced at Huddinge University Hospital, with a consistently low rate of severe tears. This supports the growing evidence for individualised and restrictive use of episiotomy at childbirth.

Anesthesia, Epidural↗

The magnitude of abortion complications in Kenya.

OBJECTIVE: To estimate and describe the magnitude of abortion complications presenting at public hospitals in Kenya. DESIGN: Cross-sectional descriptive study. SETTING: Hospital-based. Population Records of all women presenting prior to 22 weeks of gestation with abortion-related complications at selected hospitals during a three-week study period. All public tertiary and provincial hospitals were included; stratified random sampling was employed to select a subset of 54 district hospitals nationwide. METHODS: Data collectors identified 809 patients with abortion complications on all hospital wards and completed a standardised questionnaire for each by extracting information from the patient's hospital record. MAIN OUTCOME MEASURES: Incidence, aetiology, morbidity and mortality of abortion complications. RESULTS: Most women (80%) presented with incomplete abortion. Approximately 34% of the women had reached the second trimester of pregnancy. Adolescents (14-19 years old) accounted for approximately 16% of the study sample. Manual vacuum aspiration was used to manage 80% of first trimester cases. The projected annual number of women with abortion complications admitted to public hospitals in Kenya is 20,893. The case fatality rate was estimated to be 0.87% (95% CI 0.71-1.02%), so an estimated 182 (95% CI 148-213) of these women die annually. The annual incidence of incomplete abortion and other abortion-related complications per 1000 women aged 15 to 49 years is projected to be 3.03. CONCLUSIONS: The high rate of abortion-related morbidity and mortality documented in the study highlights the critical need to address the issue of unsafe abortion in Kenya.

Abortion, Induced↗

Failed suction termination of pregnancy: case reports and review.

This paper presents two case reports of failed suction termination of first trimester pregnancies which occurred at Geelong Hospital over a short period of time and thus drew our attention to this very difficult problem. The international experience with such failed terminations is then reviewed, with discussion of the recognized associations, prevention and management of such cases.

Abortion, Induced↗

Operative vaginal delivery: clinical appraisal of a new vacuum extraction device.

The efficacy of a new vacuum extraction device, the Kiwi OmniCup, and its effects on mothers and infants were tested in a study of 18 non-rotational and 32 rotational vacuum assisted deliveries. Forty-nine (98%) of the extractions resulted in successful vaginal births. Autorotation of the fetal head when the occiput was transverse or posterior was achieved in 31 (97%) of the 32 vacuum procedures. The high success rates recorded for both vaginal delivery and autorotation of the fetal head were largely attributable to the fact that flexing cup applications were achieved in 90 % of the vacuum attempts. There were no cases of serious maternal trauma or clinically significant neonatal injuries. Two infants had cephalohaematomas and one infant developed a small subgaleal haemorrhage following a difficult delivery, which resolved rapidly without complications. It was concluded that the Kiwi OmniCup is an efficient and safe vacuum device for assisted vaginal delivery, provided it is used correctly and appropriately.

Humans↗

Subgaleal hemorrhage in the neonate.

Subgaleal hemorrhage in the neonate, a possible complication of vacuum extraction, is a medical emergency. Neonates delivered with the assistance of vacuum extraction and displaying any signs of neurologic disturbance, blood loss, or anemia should be evaluated promptly for the possibility of hemorrhage. A case report is provided in this article to describe recognition and management of a neonate in hypovolemic shock after vaginal birth assisted by vacuum extraction.

Disseminated Intravascular Coagulation↗

The use of ultrasound in the evaluation of trophoblastic disease and its response to therapy.

Thirty-nine patients with trophoblastic disease were studied to determine the usefulness of ultrasound in identifying risk patterns and response to therapy. Serial measurements of serum human chorionic gonadotropin-beta subunit (HCG-BSU) were compared with ultrasonographic uterine and theca lutein cyst volumes. In 16 patients ultrasound demonstrated theca lutein cysts, many of which were not palpable on physical examination. Although there was a significant decrease in uterine volume and a change in the sonographic pattern following evacuation, volume slowly returned to normal over a period of several months. Persistent trophoblastic disease was more accurately detected by HCG-BSU measurements than by ultrasound. Persistent disease developed in 44% of those patients who had theca lutein cysts and in 22% of those without cysts. Patients with theca lutein cysts did not consistently have higher HCG-BSU levels than patients without cysts, and it is concluded that ultrasound is the best method for detecting these cysts.

Chorionic Gonadotropin↗