Serum hCG decline following salpingotomy or salpingectomy for extrauterine pregnancy.

Twenty-five women with ectopic pregnancy were surgically treated, fifteen by conservative salpingotomy and ten by radical salpingectomy. All patients showed a clinically normal postoperative course. Serum human chorionic gonadotropin (hCG) levels were determined serially before and after the surgical procedure until non-pregnant values (< 5 mI.U./ml) were reached. Serum hCG decline was compared between patients treated by salpingotomy versus salpingectomy, using calculated hCG half-life times. We observed a significantly slower decline of serum hCG levels during the early phase of hCG disappearance in patients treated by salpingotomy versus patients treated by salpingectomy.