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  • Title: [Evaluation of maternal morbidity after drug-induced termination of pregnancy (TOP) after 12 gestation weeks].
    Author: Guillem P, Racinet C, Leynaud A, Benbassa A, Cans C.
    Journal: J Gynecol Obstet Biol Reprod (Paris); 2003; 32(3 Pt 1):227-38. PubMed ID: 12773925.
    Abstract:
    OBJECTIVE: The number of TOP for medical indications has increased regularly over the last ten years. At the same time, the methods used for TOP have evolved. The purpose of this study was to assess the frequency of complications after drug-induced termination of pregnancy in order to determine whether using this method for interrupting pregnancy during the second or third trimester adds further danger for the mother in terms of early severe risk (uterine rupture, hysterectomy) or less severe long-term risk (infection). MATERIAL AND METHODS: This metaanalysis included all articles devoted to pregnancy interruption from 12 gestation weeks retrieved from the Medline database and published between 1989 and 1999 in the United States, Canada, Australia, New Zealand, or the European Union. After excluding articles that included in utero death (n=8), isolated case reports and series involving a high-risk of maternal somatic complications (n=16), and surgical methods for pregnancy termination (n=4), we retained 23 articles for analysis. These articles had included 58,891 drug-induced terminations of pregnancy. For each article, we recorded the following complications: bleeding requiring transfusion, uterine rupture, ovular or placentar retention, and infection. A classical homogenicity test was performed for each type of complication. When this test was not significant, a mean rate, weighing by size of the study, was calculated. RESULTS: One study reported maternal deaths (3/143000). The weighted mean rate for late retention (>24 hr) was 1.5 [CI95: 1.1%-1.9%]. For infections, the rates were very variable between studies (from 0.7% to 3.6% with one study reporting 8%). For bleeding with transfusion, the weighted mean rate was 0.7% [CI95: 0.5%-0.9%]. This rate was significantly higher than the rate observed in 1999 in France after delivery excepting medically terminated pregnancy (p<10(-3)) but probably is a reflection of the variable transfusion practices during the eighties in these different countries. Th rate of uterine rupture after medically terminated pregnancy was 0.1% [CI95: 0.07%-0.17%] and would be higher after delivery (excepting terminations) but not significantly (p=0.07). CONCLUSION: This metaanalysis demonstrates that the risk of severe complications (uterine rupture and bleeding requiring transfusion) are rare but are more prevalent than after delivery except pregnancy termination. The metaanalysis approach is justified due to the low incidence of these severe complications. A prospective multicentric study of the complications using a geographical base would be useful to obtain unbiased data on risk level. A risk analysis by gestational age, maternal age, parity, and product used would thus be possible, as would long-term monitoring of maternal outcome.
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