RESUMEN
Background: Salpingostomy for ectopic pregnancy in patients who has aspirations to having a baby is a necessity. Objective: To discover the factors affecting the outcome of salpingostomy. Subjects and method: 400 patients with none or one baby treated by salpingectomy or salpingostomy for ectopic pregnancy in National Hospital of Obstetrics and Gynecology from July 2006 to June 2007 were studied. The data was analyzed with T test and logistic regression. Results: 92 of 400 patients (23%) were treated by salpingostomy. The risk of salpingectomy for patients with size of pregnancy mass >2 cm (measured by ultrasound) was 2.48 times higher than that of mass <=2 cm (95% CI: 1.50-4.12). All of cases with positive fetal heart beat were treated by salpingectomy. The danger of salpingectomy for patients with preoperative level of bhCG >3000 UI/L increased by 6.65 fold in comparison with that of bhCG <=3000 UI/L (95% CI: 2.99-15.27). The risk of salpingostomy for patients with the size of pregnancy mass >3 cm is 7.43 times as much as that of mass <=3 cm (95% CI: 3.89-14.39). Conclusion: The chance of salpingostomy for patients having the size of pregnancy mass <=3 cm and bhCG <=3000 UI/L was 24.1%.