Factors leading to the removal of the intrauterine implant Gynefix^®

Abstract

Objective: The objective of this study was to determine the incidence of expulsion of the Gynefix^® intrauterine implant, to analyze the variables associated with the above and to examine the efficacy of this intrauterine contraceptive model in users at the Municipal Family Planning Center-SERGAS in A Coruña, Spain. Methods: A prospective observational study was performed on all women (n = 358) who had a Gynefix implant inserted from March 1998 to September 2000. Results: The accumulated incidence of implant expulsion was 6.7% (95% confidence interval (CI) 4.4-9.9) with a pregnancy rate of 0.6% (95% CI 0.09-2.2). The probability of implant removal decreases with the rise in the number of implants that have been inserted by the professional. A multivariate analysis adjusted for age, number of implants and uterine position showed that the position of the uterus was the variable that independently determined the probability of removal. Conclusions: It is concluded that retroflexion of the uterus increases the probability of removal.

• INTRAUTERINE IMPLANT
• INTRAUTERINE CONCEPTION
• EXPULSION
• EFFICACY
• TRAINING