NHÂN 1 TRƯỜNG HỢP THAI NGOÀI Ý MUỒN TRONG KHI SỬ DỤNG QUE CẤY TRÁNH THAI IMPLANON NXT®

Abstract

Implanon®, a synthetic subcutaneous progestin etonogestrel eluting capsule, was approved for use to provide long-acting reversible contraception (LARC). During more than 10 years of presence in Vietnam, Implanon® becomes more and more popular because of its convenience and high birth control effect. The unintended pregnancy in patients using an etonogestrel contraceptive implant is very rare. We report 1 case of intrauterine pregnancy while using Implanon NXT®. She is 27 years old, PARA 1001, contraceptive implanted since April 2017. After 8 months of implantation, she was diagnosed with pulmonary tuberculosis and treated according to the 2RHZE/4RHE regimen. 6 months after starting treatment, the patient was found to be 18 weeks pregnant. The implant remained in place and was removed intact 1 week later. The patient continued the pregnancy, delivered normally at full term with normal neonatal examination results. Thereby illustrating as mentioned in the literature, antitubercular medications (hepatic enzyme inducers) may reduce the contraceptive effect of Implanon®.