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  • Title: Reduced incidence of postoperative endometritis by the use of Laminaria tents in connection with first trimester abortion.
    Author: Bryman I, Granberg S, Norström A.
    Journal: Acta Obstet Gynecol Scand; 1988; 67(4):323-5. PubMed ID: 3176954.
    Abstract:
    A Laminaria tent was inserted in the cervical canal of 115 primigravidae prior to vacuum aspiration in the first trimester. A mean dilatation of 9.7 mm was thereby achieved. Only 2 of these patients were treated by antibiotics due to 'mild' endometritis, as compared with 10 of 130 control patients due to endometritis and 7 patients due to 'mild' endometritis. Three non-treated control patients had to undergo laparoscopy due to perforation of the uterus during dilatation of the cervical canal. It is concluded that pre-treatment with the Laminaria tent prior to vacuum aspiration reduces the incidence of per- and post-operative complications. In an 8 month study of 245 primigravidae hospital patients, doctors divided 1 group of women into a control group of 130 and the remaining 115 for readmission the day before their scheduled 1st trimester abortion. A Laminaria tent was inserted in the cervical canal of the readmitted women. The women then left the hospital ambulatory and returned, 16-18 hours later for vacuum aspiration. The insertion and removal of the tents was carried out with only mild and transient pain experienced. Of the women who received the Laminaria tents, the cervical canal dilated 9.2mm as opposed to the 3.6mm in the control group. All operators witnessed a much smoother aspiration than in control patients with no perforation of the uterus. Of the control group of women, 3 suffered an accidental perforation of the uterus during evacuation and 17 returned to the hospital within 5 days after operation for cases of endometritis. Only 2 of the Laminaria-treated women had to return to the hospital for mild cases of endometritis. The use of the Laminaria tent in vacuum aspiration reduces incidence of endometritis and perforation of the uterus.
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