Abstract:Objective To investigate the clinical characteristics of tubal heterotopic pregnancy under laparoscopic treatment and analyze the factors affecting pregnancy outcome.Methods From January 2015 to May 2021, clinical data of 49 patients with tubal heterotopic pregnancy were collected. Clinical characteristics of tubal heterotopic pregnancy were retrospectively analyzed. Univariate analysis was performed by T test, χ2 test or rank-sum test. Multivariate analysis was performed by Logistic regression.Results Clinical features: ①Pregnancy mode: 91.84% after embryo transfer, 8.16% after ovulation induction; ②Surgical history: 24.49% had no pelvic surgery history, 63.27% had tubal surgery history, 12.24% had other pelvic surgery history; ③The first clinical symptoms: 20.41% had no clinical symptoms, 26.53% only showed lower abdominal pain, 12.24% only showed vaginal bleeding and 40.82% showed lower abdominal pain with vaginal bleeding; ④Whether there were fetal cardiac and fetal buds in utero: 75.51% had fetal cardiac and fetal buds, 24.49% did not. 7 cases of postoperative abortion, laparoscopic treatment of tubal heterotopic pregnancy abortion rate was 14.29%. Univariate analysis: gestational age, pelvic blood volume and intrauterine heart and fetal embryo between the two groups were statistically significant differences (P < 0.05). There were no significant differences in age, surgical history, first clinical symptoms, surgical method, surgical time and intraoperative blood loss (P > 0.05). Multivariate analysis: pelvic blood volume ≥ 200 mL was an independent risk factor for pregnancy outcome (P = 0.012).Conclusion Most of the patients with tubal heterotopic pregnancy have a history of embryo transfer and tubal surgery and their clinical symptoms are not typical, so the clinical cognition should be improved. Ultrasound examination is very important, clinicians should not relax vigilance because of the history of bilateral salpingectomy, ligation and obstruction; When pelvic blood volume ≥ 200 mL, the probability of abortion increases. When surgical indications are clear, patients should be operated as soon as possible.