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International, Collaborative Experience of 1789 Patients Having Multifetal Pregnancy Reduction: A Plateauing of Risks and OutcomesDepartments of Obstetrics and Gynecology, Molecular Medicine and Genetics, and Pathology, Hutzel Hospital/Wayne State University, Detroit, Michigan, and Departments of obstetrics and Gynecology of the following: Maternite Port Royal. Paris, France;Jefferson-Philadelphia, Philadelphia, Pennsylvania, U.C.S.F., San Francisco, California: Mt. Sinai, New York, St. Lukes, Houston, Texas; Columbia University, New York; University of Milan, Milan, Italy; and Kings College, London, United Kingdom; Departments of Obstetrics and Gynecology, Wayne State University/Hutzel Hospital, 4707 st Antoine Blvd., Detroit, MI 48201
Departments of Obstetrics and Gynecology, Molecular Medicine and Genetics, and Pathology, Hutzel Hospital/Wayne State University, Detroit, Michigan, and Departments of obstetrics and Gynecology of the following: Maternite Port Royal. Paris, France;Jefferson-Philadelphia, Philadelphia, Pennsylvania, U.C.S.F., San Francisco, California: Mt. Sinai, New York, St. Lukes, Houston, Texas; Columbia University, New York; University of Milan, Milan, Italy; and Kings College, London, United Kingdom Objective: To develop the most up-to-date, complete data base of multifetal pregnancy reduction (MFPR) from cases, and to provide the best counseling for couples with multifetal pregnancies. Methods: From nine centers in five countries, 1789 completed MFPR cases were collected and outcomes evaluated. Pregnancy losses were defined as through 24 weeks and deliveries categorized in groups of 25-28, 29-32, 33-36, and 37 or more weeks. Results: Overall, the pregnancy loss rate was 11.7% but varied from a low of 7.6% for triplets to twins and increased with each additional starting number to 22.9% for sextuplets or higher. Early premature deliveries (25-28 weeks) were 4.5% and varied with starting number. Loss rates by finishing number were highest for triplets and lowest for twins, but gestational age at delivery was highest for singletons. Conclusions: Multifetal pregnancy reduction has been shown to be a safe and effective method to improve outcome in multifetal pregnancies. Outcomes are worse with higher-order gestations and support the need for continued vigilance of fertility therapy.
Key Words: Multifetal pregnancy reduction MFPR prematurity multiple gestation infertility therapy assisted reproductive techniques
Journal of the Society for Gynecologic Investigation, Vol. 3, No. 1,
23-26 (1996) |
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