Prophylactic vasopressin during laparoscopic salpingotomy for ectopic pregnancy

Study Objective. To evaluate the safety and efficacy of prophylactic mesosalpingeal vasopressin injection for hemostasis during laparoscopic salpingotomy for ectopic pregnancy. Design. Prospective, randomized clinical study. Setting. Reproductive endocrinology and endoscopic surgery clinic of a tertiary care hospital. Patients. Forty women with ectopic pregnancy. Interventions. Laparoscopic linear salpingotomy was attempted with prophylactic mesosalpingeal dilute vasopressin injection in 20 patients (study group), and without vasopressin in 20 patients (control group). The two groups were similar with regard to age, size of ectopic pregnancy, gestational age, and initial B-hCG values. A multipuncture operative laparoscopy technique was used in all cases and bipolar electrocoagulation was used for hemostasis. Measurements and Main Results. The operating time was significantly shorter and the need for electrocoagulation was significantly less in the study than in the control group (p<0.05). Laparoscopic salpingotomy was performed successfully in 85% of study group patients compared with 70% of controls (p>0.05). Postoperative hysterogram revealed patency of the affected tube in 76.5% of women in the study group compared with 57.1% of controls (p>0.05). Possible complications of vasopressin, such as hypertension, bradycardia, and delayed bleeding, did not occur in any patient. Conclusions. Vasopressin use reduces both operating time and the need for electrocoagulation for hemostasis, which can have undesirable effects on the tube. Vasopressin was not associated with side effects in this relatively small sample.