• Yuehong Hui, Shaojie Zhao, Jinsong Gu, and Chen Hang.
• Department of Obstetrics and Gynecology, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu.
• Medicine (Baltimore). 2020 May 22; 99 (21): e20132e20132.

AbstractTo investigate the influence factors of laparoscopic postoperative pregnancy of patients with endometriosis and infertility, further validate the application of EFI scoring system in endometriosis, and to improve the pregnancy rate.A total of 258 patients with endometriosis and infertility who underwent laparoscopic surgery and follow-up treatment at Wuxi Maternal and Child Health Hospital from January 2015 to December 2016 were selected and divided into pregnant and non-pregnant groups according to whether they were pregnant. All patients were divided into 4 groups according to EFI score: group with EFI score ≥9, 7-8, 4-6, and <4, and divided into I, II, III, and IV groups according to AFS stages. The uterus-laparoscopic surgery was performed. The patients were followed up for 3 years. The factors affecting the pregnancy rate were analyzed. The pregnancy rate and pregnancy types were calculated at different time points.Multivariate analysis showed that age <35 years, infertility time <5 years, secondary infertility, EFI score, postoperative ART application were protection factors of postoperative pregnancy. The 3-year cumulative postoperative pregnancy rate was 75.6%. The cumulative pregnancy rate was 92.2% in group with EFI score ≥9, 85.9% in group with EFI score 7-8, 62.5% in group with EFI score 4-6 and 5.9% in group with EFI score <4, there was significant difference between the 4 groups (P < .05). The proportion of pregnancies in 6 months and 12 months was higher in patients with EFI score ≥7, 61.0% in patients with EFI score ≥9 and 41.1% in patients with EFI score ≥7. The highest natural pregnancy rate was 83.1% in group with EFI score ≥9, and there was significant difference between the 4 groups (P < .05).Age <35 years, infertility time <5 years, secondary infertility, EFI score and ART application were the protective factors of postoperative pregnancy. EFI score had positive significance in predicting and guiding the postoperative pregnancy of patients with endometriosis and infertility. According to EFI score, the pregnancy rate of patients with endometriosis and infertility can be significantly improved by strict management and active pregnancy program.

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