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  • Title: A comparison of prostaglandin E2 pessaries and laminaria tents for ripening the cervix before termination of pregnancy.
    Author: Killick SR, Vaughan Williams CA, Elstein M.
    Journal: Br J Obstet Gynaecol; 1985 May; 92(5):518-21. PubMed ID: 3857938.
    Abstract:
    Forty primigravid women aged 15-45 years were randomly allocated to receive either an intravaginal pessary of 3 mg prostaglandin E2 (PGE2) or an intracervical 5-mm laminaria tent (LT) 12-16 h before termination of pregnancy at 6-14 weeks gestation. The degree of dilatation of the cervix at operation and its resistance to further dilatation during the procedure were assessed by a 'blind' operator. Laminaria tents were more effective in achieving dilatation and softening of the cervix than were PGE2 pessaries and in 40% of women no further dilatation was necessary. There were no associated side-effects or complications. A cervical tear occurred in two of 20 patients treated with PGE2 pessaries and all 20 required further dilatation of the cervix. Laminaria tents provide a simple, safe, acceptable and effective means of 'ripening' the cervix prior to termination of early pregnancy. 40 primigravid women ages 15-45 were randomly allocated to receive either an intravaginal pessary of 3 mg prostaglandin E2 (PGE2) or an intracervical 5 mm laminaria tent (LT) 12-16 hours before termination of pregnancy at 6-14 weeks gestation. The degree of dilatation during the procedure was assessed by a "blind" operator. LTs were more effective in achieving dilatation and softening of the cervix than were PGE2 pessaries, and in 40% of the women, no further dilatation was necessary. There were no associated side effects or complications. A cervical tear occurred in 2 of 20 patients treated with PGE2 pessaries and all 20 required further dilatation of the cervix. LTs provide a simple, safe, acceptable, and effective means of ripening the cervix prior to termination of early pregnancy.
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