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עמוד בית
Sat, 03.12.22

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June 2010
M. Odeh, R. Tendler, M. Kais, O. Maximovsky, E. Ophir and J. Bornstein
Background: The results of medical treatment for early pregnancy failure are conflicting.

Objectives: To determine whether gestational sac volume measurement as well as other variables can predict the success rate of medical treatment for early pregnancy failure.

Methods: The study group comprised women diagnosed with missed abortion or anembryonic pregnancy who consented to medical treatment. Demographic data were collected and beta-human chorionic gonadotropin level was documented. Crown-rump length and the sac volume were measured using transvaginal ultrasound. TVU[1] was performed 12–24 hours after intravaginal administration of 800 µg misoprostol. If the thickness of the uterine cavity was less than 30 mm, the women were discharged. If the sac was still intact or the thickness of the uterine cavity exceeded 30 mm, they were offered an additional dosage of intravaginal misoprostol or surgical uterine evacuation.

Results: Medical treatment successfully terminated 32 pregnancies (39.5%), 30 after one dose of misoprostol, and 2 after two doses (group A) 49 underwent surgical evacuation (group B), 47 following one dose of misoprostol and 2 following two doses. There were no significant differences between the groups in age and gestational week. Gestational sac volume did not differ between groups A and B (10.03 ml and 11.98 ml respectively, P = 0.283). Parity (0.87 and 1.43, P = 0.015), previous pregnancies (2.38 and 2.88, P = 0.037), and bHCG[2] concentration (6961 and 28,748 mIU, P = 0.013) differed significantly between the groups.

Conclusions: Gestational sac volume is not a predictor of successful medical treatment for early pregnancy failure. Previous pregnancies and deliveries and higher bHCG concentration negatively affect the success rate of medical treatment.

 

 



[1] TVU = transvaginal ultrasound

[2] bHCG = beta-human chorionic gonadotropin

 
November 2000
David Peleg MD, Aviva Peleg MSc and Eliezer Shalev MD

Background: Human chorionic gonadotropin, the pregnancy hormone, is synthesized by trophoblast cells which make up the placenta.

Objective: To determine whether antibody to hCG can be used to specifically detect living trophoblast in vitro by binding to the external membrane.

Methods: Trophoblast was isolated from fresh placentas of women undergoing termination of pregnancy in the first trimester and incubated with monoclonal antibody to hCG. Anti-mouse immunoglobulin G with a fluorescent marker was then added.

Results: Syncytiotrophoblast stained positive on the external surface of the cell, while controls of leukocytes, endometrial cells and hepatocytes were negative.

Conclusion: The hCG monoclonal antibody may be used to specifically detect hCG on the surface of living trophoblast in vitro.
 

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