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NorplantR-2 rods contraceptive subdermal implants: two-year experience in Singapore

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Advances in Contraception

Abstract

NorplantR-2 contraceptive implants consist of two Silastic rods in which levonorgestrel has been incorporated with the polymer. This on-going study describes our two-year experience with 100 acceptors of NorplantR-2 rods in Singapore. No pregnancies occurred during the first two years of use. Desire for planned pregnancy and menstrual irregularities accounted for 86.4% of the removals during this period.

The continuation rate at the end of two years was 78%. The post-removal conception rate in women desiring planned pregnancy was 54.5% at the end of one year. Apart from this apparent slow return of fertility requiring future close surveillance, it appears that the NorplantR-2 rod system offers a highly effective and convenient means of contraception.

Resunré

Les implants conrraceptifs NorplantR-2 consistent en deux éléments de Silastic dans lesquels on a incorporé du lévonorgestrel dans le polymère. L'étude poursuivie décrit notre expérience de deux années à Singapour, avec 100 femmes qui ont accepté le traitement aux implants NorplantR-2. Aucune grossesse nla été enregistrée pendant les deux premières années dlutillsation. Bendant cotte période, 86,4% des retraits ont été dus à la planification d'une grossesse ou à des irrégularités du eyele menstruel.

Le taux de poursuite à la fin des deux ann'ees s'élevait à 78%. Le taux de conception chez les femmes ayant planifié une grossesse était de 54,5% à la fin de la première année. Malgré cette lenteur apparente du retour à la fécondité, qu'il y aura lieu de surveiller de près, il semble que les éléments NorplantR-2 offrent une méthode de contraception extrêmement efficace et commode.

Resumen

Los implantes anficonceptivos NorplantR-2 constan de dos elementos de Silastie on los guales se ha incorporado levonorgestrel en el polimero. Este estudio, que continúa, deseribe nuestra experlengia de dos aros en Singapur, con 100 mujeres que habían aecptado implantes NorplantR-2. No se registrô ningún embarazo durante los primeros dos años de empleo. Durante este período, el 86,4% de los retiros se debió al deseo de un embarazo planificado o a la perturbación del ritmo menstrual.

La tasa de continuación al eabo de dos aõs fue del 78%. La tasa de concepción tras el retiro del implante en las mujeres que deseaban un embarazo planificado fue del 54,5% al eabo de un año. Aparte de esta lentitud aparente en el retorno a la fecundidad, que será necesario vigilar de cerea, los elementos NorplantR-2 ofrecen, al parecer, un método anticonceptivo sumamente eficaz y cómodo.

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References

  1. SivinI., DiazS., HolmaP. and Alvarez-SanchezF. (1983). A four-year study of Norplant implants.Stud. Fam. Plann.,14, 184–194

    PubMed  Google Scholar 

  2. Norpiant contraceptive implants (1984). A new contraceptive for women. (Kleinman, M., ed.),International Planned Parenthood Federation Medical Bulletin,19, 2–3

  3. LopezG., RodriquezA., RengifoJ. and SivinI. (1986). Two year prospective study in Colombia of Norplant implants.Obstet. Gynecol.,68, 204–208

    PubMed  Google Scholar 

  4. SinghK., ViegasO. and RatnamS.S. (1988). Norplant-2: A ene year experience in Singapore,Contraception,38, 429–440

    PubMed  Google Scholar 

  5. BasnayakeS., ThapasS. and BaloghS.A. (1988). Evaluation of safety, efficacy and acceptablity of Norplant implants in Sri Lanka.Stud. Fam. Plann.,19, 39–48

    PubMed  Google Scholar 

  6. BalahM., AhmedA.G.M., Abo-EloyoumM. and ShaabanM.M. (1987). Five-year experience with Norplant implants in Assiut, Egypt.Contraception,35, 543–550

    PubMed  Google Scholar 

  7. AffandiB., SantosoS.S.I., Djajadilaga, HdisaputraW., MoeloekF.A., PrihartonoJ., LubisF. and SamliR.S. (1987). Five-year experience with Norplant.Contraception,36, 417–428

    PubMed  Google Scholar 

  8. SayenaB. (1986). Evaluation of Norplant system. In: RatnamS.S., TeohE.S. and LimS.M. (eds.)Proceedings of the 12th World Congress on Fertility and Sterility, Singapore, October 1986, Volume 6. Parthenon Publishing Group, London

    Google Scholar 

  9. Gu, S.I., Yuan, D.Y., Zhong, L.D.et al. (1987). Evaluation of the Norplant subdermal contraceptive system-China. In:Proceedings of the Pre-congress Seminar of the XIAOFOG Congress, Bangkok, Thailand

  10. SivinI. (1988). International experience with Norplant and Norplant-2 contraceptives.Stud. Fam. Plann.,19, 81–94

    PubMed  Google Scholar 

  11. SlvinI., DiazS., HolmaP., SanchezF. and RobertsonN.A. (1983). Four-year clinical study of Norplant implants.Stud. Fam. Plann. 14, 181–183

    PubMed  Google Scholar 

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Singh, K., Viegas, O.A.C., Singh, P. et al. NorplantR-2 rods contraceptive subdermal implants: two-year experience in Singapore. Adv Contracept 5, 91–99 (1989). https://doi.org/10.1007/BF01849476

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  • DOI: https://doi.org/10.1007/BF01849476

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