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  • Title: Location of endometrial polyp and pregnancy rate in infertility patients.
    Author: Yanaihara A, Yorimitsu T, Motoyama H, Iwasaki S, Kawamura T.
    Journal: Fertil Steril; 2008 Jul; 90(1):180-2. PubMed ID: 17889854.
    Abstract:
    OBJECTIVE: To assess endometrial polyp location and abnormal endometrial findings and their impact on pregnancy rate. DESIGN: Retrospective study. SETTING: Reproductive clinic in Kanagawa, Japan. PATIENT(S): A retrospective study was conducted on 230 infertility patients who had an endometrial polyp, as suspected on the basis of ultrasound and as diagnosed by hysteroscopy. INTERVENTION(S): Polyps were excised by either polypectomy or curettage. All samples were examined for pathology. The endometrial cavity was subdivided into five area categories: uterotubal junction, anterior uterine wall, posterior uterine wall, lateral uterine wall, and multiple. The patients received < or =6 months of follow-up; pregnancy rates were compared between the five subdivisions. MAIN OUTCOME MEASURE(S): Pregnancy rates. RESULT(S): The incidence of endometrial polyps was as follows, by location: uterotubal junction, 8.0%; posterior uterine wall, 32.0%; anterior uterine wall, 15.4%; lateral uterine wall, 9.2%; and multiple, 35.4%. The pregnancy rate after surgery was as follows, by location: uterotubal junction, 57.4%; posterior uterine wall, 28.5%; anterior uterine wall, 14.8%; lateral uterine wall, 18.8%; and multiple, 40.3%. Endometrial hyperplasia was found in 6.9% of the cases. The pregnancy rate after surgery at the uterotubal junction was significantly higher than that of other locations. CONCLUSION(S): Endometrial polyps are commonly found on the posterior wall of the uterus; however, excision of polyps that were located at the uterotubal junction significantly improved the pregnancy rate. Endometrial polyps should be categorized by both size and location.
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