Abstract
The incidence of ectopic pregnancy in the United States is 1 in 100 live births, and Schneider calculates from this figure that there are 30,000 ectopic gestations per year.9 From 5.9%2 to 10%9 of maternal deaths in the United States are due to ectopic pregnancy, occurring predominantly in females 26 to 30 years of age.2 In Breen’s series of 654 ectopic pregnancies, 89% of patients had previously been pregnant demonstrating a high fertility index in this group of patients2; 10% to 20% of ectopic pregnancies resulted from tubal surgery for infertility.3 Of the 654 ectopic pregnancies, 97.7% were located in the tube; the others were located in the abdomen or ovary. Of the 639 tubal gestations, 41% occurred in the distal third of the tube, 38% in the middle third, and the remaining 21% in the proximal third interstitial portion or in the fimbria2 (Figure 17.1). The common denominator in this group of patients is delay in transport of the ovum fertilized in the ampulla of the tube to the normal implantation site in the uterus.
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References
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© 1997 Springer-Verlag New York Inc.
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Masterson, B.J. (1997). Ectopic Pregnancy. In: Manual of Gynecologic Surgery. Comprehensive Manuals of Surgical Specialties. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-0073-1_17
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DOI: https://doi.org/10.1007/978-1-4684-0073-1_17
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