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Subtle distal Fallopian tube abnormalities comprise a group of diseases that are characterised by subtle variations in tubal anatomy. This prospective cohort study investigated the prevalence of subtle distal Fallopian tube abnormalities in the infertile population and their relationship with endometriosis. It was conducted in a single fertility referral centre between January 2017 and December 2018 and included all infertile patients who underwent laparoscopy. Subtle distal Fallopian tube abnormalities included fimbrial agglutination, tubal diverticula, accessory ostium, fimbrial phimosis, and accessory Fallopian tube. A total of 876 patients were enrolled in the study, and 251 cases (28.65%; mean age: 29.4 ± 4.7 years) were diagnosed with subtle tube abnormalities. A total of 179 of these cases presented only one type of abnormality, 62 presented two types of abnormalities, and 12 presented three types. Tubal fimbrial agglutination composed the largest group (62.2%; n = 156), followed by tubal diverticula (26.3%; n = 66), fimbrial phimosis (25.5%; n = 64), tubal accessory ostium (15.5%; n = 39), and tubal accessory ostium (15.5%; n = 39). An accessory Fallopian tube was the least common abnormity (4.8%; n = 12). A total of 70.9% (178/251) of the women with subtle tubal abnormalities had endometriosis. The prevalence of subtle distal Fallopian tube abnormalities in the stage I-II group was significantly higher than in the stage III-IV group (57.3% [149/260] vs. 20.9% [29/139]; p < 0.001). These findings indicate the high prevalence of subtle distal Fallopian tube abnormalities in the infertile woman. This group of diseases is highly related to endometriosis and may indicate fimbrial abnormalities of endometriosis. [ABSTRACT FROM AUTHOR]

Objective: To assess the objectivity and accuracy of a new system that predicts the pregnancy outcomes in patients with tubal pregnancy after laparoscopic salpingostomy.Study Design: 480 tubal pregnancy patients were retrospectively stratified as mild, moderate, or severe group according to the new tubal classification system in which pelvic adhesions, tubal morphology, structure, and patency were included. The follow-up was performed for 24 months to determine spontaneous pregnancy outcomes.Results: The tubal classification was significantly associated with intrauterine pregnancy rates (mild 70.9% vs. moderate 66.0% vs. severe 41.8%, P=0.001) and recurrent ectopic pregnancy rates (mild 2.8% vs. moderate 4.2% vs. severe 10.9%, P=0.047). The 24-month cumulative rate of intrauterine pregnancy was 73.5% in the mild group, 68.5% in the moderate group, and 45.8% in the severe group (P=0.002). The 24-month cumulative repeat ectopic pregnancy rate was 6.6% in the mild group, 9.1% in the moderate group, and 15% in the severe group (P=0.154). In Cox multivariate regression analysis, a lack of a history of infertility [hazard ratio (HR)=0.633, P=0.001] and tubal scoring (mild HR=2.408, P=0.008; moderate HR=2.147, P=0.010) were significantly associated with a higher rate of spontaneous intrauterine pregnancy. Having a history of infertility (HR=0.351, P=0.037) and no prior abdominopelvic surgery (HR=2.907, P=0.014) were significantly associated with a lower ectopic pregnancy rate.Conclusion: The new tubal classification system significantly correlated with spontaneous pregnancy outcomes in patients with tubal pregnancy following laparoscopic salpingostomy. [ABSTRACT FROM AUTHOR]