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Effect of early insertion of the implant releasing etonogestrel on child growth

Grant number: 13/13993-8
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): February 01, 2014
Effective date (End): January 31, 2016
Field of knowledge:Health Sciences - Medicine - Maternal and Child Health
Principal Investigator:Carolina Sales Vieira
Grantee:Lilian Sheila de Melo Pereira Do Carmo
Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil


Despite the growing number of users of contraceptive methods in the last decade, the World Health Organization (WHO) estimates that 50% of pregnancies are unplanned for various reasons ranging from lack of access to contraceptives to misuse of them. Family planning measures instituted immediately postpartum period may have great impact in reversing this scenario, contributing not only to reduce unplanned pregnancies, but also to increase the intergestacional interval. The etonogestrel (ENG) releasing implant is a long acting reversible contraceptive method which is highly effective and does not require daily intervention of women to improve it effectiveness. It does not affect lactation nor the health of the newborn when inserted after four weeks of childbirth, however, there is still limited evidence that does not seem to affect these parameters when inserted immediately after delivery. Maternal health has been assessed and there seems no difference if the implant is inserted immediately after childbirth or during traditionally recommended (after 4 to 6 weeks of delivery). This study aims to assess whether there is to evaluate for 12 months the neonatal effects (growth) of ENG releasing implant when it is inserted immediately after the delivery versus the insertion after six weeks of the delivery. (AU)

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