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Obstet Gynecol. 1991 Jan;77(1):146-52.

Nonpharmaceutical ripening of the unfavorable cervix and induction of labor by a novel double balloon device.

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  • 1Department of Obstetrics and Gynecology, Carmel Hospital, Haifa, Israel.

Abstract

Artificial ripening of the unfavorable cervix was attempted in 48 women using intracervical prostaglandin (PG) E2 gel applied by a cannula and in 70 others by a newly designed double balloon device (Atad Ripener Device). In the first group (phase A), application of PGE2 gel by intracervical cannula resulted in a mean increase of 3 points in the Bishop score and a mean instillation-to-delivery time of 34.2 hours. The study of labor induction by the double balloon device was carried out in two parts. One (phase B) consisted of a double-blind randomized controlled study in which, through the double balloon device, ten women received PGE2 gel and another ten were given placebo gel. There was no significant difference in the increase of Bishop score between the two groups (5.8 points in the treatment group and 6.0 in the placebo-controlled group). Ninety percent of women in both groups delivered vaginally with a mean of 20.8 hours after device insertion. The third phase of the study consisted of an open trial of inserting the double balloon device alone without PGE2, and inflating the balloons in 50 patients. A mean increase of 4.4 points in the Bishop score was noted in these women. These findings suggest that the use of the double balloon device for ripening of the unfavorable cervix is an effective and well-tolerated method of labor induction.

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PMID:
1984215
[PubMed - indexed for MEDLINE]
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