Sium Abraham Fessehaye, Abdu Amani Nureddin, Grentzer Jaclyn M, Reeves Matthew F, Prager Sarah
Department of Obstetrics and Gynecology St. Paul's Hospital Millennium Medical College Addis Ababa Ethiopia.
Department of Population, Family, and Reproductive Health Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA.
Public Health Chall. 2025 Aug 1;4(3):e70086. doi: 10.1002/puh2.70086. eCollection 2025 Sep.
Currently, there are four implants that a family planning provider might encounter for removal: Jadelle (two radiopaque, flexible cylindrical implants, 43 mm × 2.5 mm, consisting of dimethylsiloxane/methylvinylsiloxane copolymer core enclosed in thin-walled silicone casing. Each implant contains 75 mg of levonorgestrel, FDA approved for 5 years of use); Levoplant (which is very similar to Jadelle but is only FDA approved for 4 years); Nexplanon (a single, radiopaque rod (40 mm × 2 mm) made of ethylene vinyl acetate copolymer. Each implant contains 68 mg etonogestrel. FDA approved for 3 years of use); and Implanon (a single, non-radiopaque rod (40 mm × 2 mm) made of ethylene vinyl acetate copolymer. Each implant contains 68 mg etonogestrel. FDA approved for 3 years of use). Most implants can be easily palpated after insertion as well as at the time of removal, but in a small number of cases, the implant may not be palpated due to a variety of factors: a clinician inserted the implant deeper than the subcutaneous layer or in a place other than is recommended; the implant was not inserted at all; a woman has gained significant weightand there is increased subcutaneous fat overlying the implant; or the implant has migrated away from the insertion site. Of importance is that if the implant cannot be palpated, no attempt should be made to remove it until it can be localized. Given the rising use of long-acting reversible contraceptives (LARCs), a standardized approach to difficult implant removals is essential, especially in low-middle income countries (LMICs). In this protocol, we demonstrate a step-by-step approach for identification and removal of non-palpable implants that can be adopted for practice across LMICs. This protocol may also serve as a foundation for broader clinical guidelines and training programs.
目前,计划生育服务提供者可能会遇到需要取出的四种植入物:杰德勒(Jadelle,两个不透射线的柔性圆柱形植入物,43毫米×2.5毫米,由二甲基硅氧烷/甲基乙烯基硅氧烷共聚物芯组成,外包薄壁硅树脂外壳。每个植入物含有75毫克左炔诺孕酮,美国食品药品监督管理局(FDA)批准使用5年);左炔诺孕酮皮下埋植剂(Levoplant,与杰德勒非常相似,但FDA仅批准使用4年);依伴侬(Nexplanon,一根由乙烯醋酸乙烯酯共聚物制成的不透射线的单棒(40毫米×2毫米)。每个植入物含有68毫克依托孕烯。FDA批准使用3年);以及皮下埋植剂(Implanon,一根由乙烯醋酸乙烯酯共聚物制成的不透射线的单棒(40毫米×2毫米)。每个植入物含有68毫克依托孕烯。FDA批准使用3年)。大多数植入物在插入后以及取出时都很容易触摸到,但在少数情况下,由于各种因素可能无法触摸到植入物:临床医生将植入物插入皮下层以下或推荐位置以外的地方;根本没有插入植入物;女性体重显著增加,植入物上方的皮下脂肪增多;或者植入物已从插入部位移位。重要的是,如果无法触摸到植入物,在其定位之前不应尝试取出。鉴于长效可逆避孕药(LARC)的使用日益增加,对于困难的植入物取出采用标准化方法至关重要,尤其是在低收入和中等收入国家(LMIC)。在本方案中,我们展示了一种识别和取出无法触摸到的植入物的分步方法,可在LMIC的实践中采用。本方案也可作为更广泛的临床指南和培训项目的基础。