Prognostic factors for an unsatisfactory primary methotrexate treatment of cervical pregnancy: A quantitative review

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Abstract

To determine the risks when the primary methotrexate (MTX) treatment of cervical pregnancy has an unsatisfactory outcome, we conducted a Medline search on relevant literature published from January 1983 to June 1997. The search yielded 28 publications of 48 cases of cervical pregnancy. These and four new cases from our institutions were used in our study. A cervical pregnancy that presented with a serum β-human chorionic gonadotrophin concentration of ≤ 10,000 mIU/ml [odds ratio (OR) 10.82, 95% confidence interval (CI) 2.59, 45.14], gestational age at ≤ 9 weeks (OR 6.44, 95% CI 1.46, 28.52), embryonic cardiac activity (OR 14.29, 95% CI 2.95, 76.92), and crown-rump length of > 10 mm (OR 13.33, 95% CI 1.46, 120.48) was considered to be associated with a higher unsatisfactory rate of primary MTX treatment. A concomitant feticide was found to enhance the therapeutic effect of MTX treatment if embryonic cardiac activity was evident (OR 0.13, 95% CI 0.02, 0.68). Administration of a high dose of MTX did not seem to be more effective than a lower one. Our findings supported some previous observations and, more importantly, provided useful clinical information in selecting appropriate candidates for MTX treatment in cases of cervical pregnancy.

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Hung, T. H., Shau, W. Y., Hsieh, T. T. ang, Hsu, J. J., Soong, Y. K., & Jeng, C. J. (1998). Prognostic factors for an unsatisfactory primary methotrexate treatment of cervical pregnancy: A quantitative review. Human Reproduction, 13(9), 2636–2642. https://doi.org/10.1093/humrep/13.9.2636

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