Clinical trial NCT02738957: Effect of Prenatal Counseling on Breastfeeding Rates in Twins
Official title: Effect of Prenatal Counseling on Breastfeeding Rates in Twins
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Breastfeeding
Lead sponsor: University of Sao Paulo
Sponsor class: OTHER
First posted: 2016-04-14
Enrollment: 116
Sex: FEMALE
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: SUPPORTIVE_CARE

Brief summary: Few studies have investigated breastfeeding in twins, and none have addressed the effect of antenatal counseling on breastfeeding twins.The purpose of this study is to investigate the effect of antenatal breastfeeding counseling on the breastfeeding rates in twin pregnancies.

Detailed description: In singleton pregnancies, three randomized studies have recently examined the influence of antenatal breastfeeding education on the breastfeeding rates (Su et al. 2007; Mattar et al. 2007; Wong et al. 2014). Two of these studies did not find differences in the total breastfeeding rates between the groups that received and did not receive antenatal breastfeeding education at the infants' age of 6 months old (Su et al. 2007; Wong et al. 2014). However, Su et al. found higher exclusive breastfeeding rates for 6-months-old infants in the group that received antenatal counseling. In contrast, Mattar et al. 2007 found significantly difference in breastfeeding rates with individual counseling compared to non-counseling or only breastfeeding educational material with no counseling.

Few studies have investigated breastfeeding in twins specifically, and even fewer have focused on the duration of breastfeeding of twin infants. Furthermore, in our literature search, we did not find studies of breastfeeding of twins investigating the effect of antenatal education on breastfeeding twins. Our hypothesis is that mothers of twins receiving specific antenatal counseling on breastfeeding should have a higher rate of breastfeeding than mothers who do not receive antenatal breastfeeding counseling. Therefore, the purpose of this study was to investigate the effect of specific antenatal breastfeeding counseling on the breastfeeding rates in twin pregnancies.

Eligibility criteria: Inclusion Criteria:

* twin pregnancies with both fetuses alive between 18 and 34 weeks of gestational age and followed at our twin clinic; absence of absolute contraindications for breastfeeding, such as positive serology for HIV, HTLV; absence of use of lactation inhibitors to treat prolactinoma, such as cabergoline and bromocriptine; and absence of major malformation of one or both twins that could preclude breastfeeding, including gastrointestinal defects, cleft lip and cleft palate, or malformations that would require neonatal surgery with prolonged hospital stay.

Exclusion Criteria:

* fetal or postnatal death of one or both twins; delivery before 32 weeks; major malformation diagnosed postnatal; and lost to follow up or no breastfeeding information.

Primary outcomes:
measure: Mother´s total and exclusive breastfeeding rates
timeFrame: 5 years
Secondary outcomes:
measure: Twin infant´s breastfeeding rates
timeFrame: 5 years
Other outcomes:
Locations:
city: São Paulo
country: Brazil
facility: Hospital das Clinicas
state: SP
Study officials:
affiliation: University of Sao Paulo
name: MARIA DE LOURDES BRIZOT, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Mattar CN, Chong YS, Chan YS, Chew A, Tan P, Chan YH, Rauff MH. Simple antenatal preparation to improve breastfeeding practice: a randomized controlled trial. Obstet Gynecol. 2007 Jan;109(1):73-80. doi: 10.1097/01.AOG.0000249613.15466.26.
citation: Su LL, Chong YS, Chan YH, Chan YS, Fok D, Tun KT, Ng FS, Rauff M. Antenatal education and postnatal support strategies for improving rates of exclusive breast feeding: randomised controlled trial. BMJ. 2007 Sep 22;335(7620):596. doi: 10.1136/bmj.39279.656343.55. Epub 2007 Aug 1.
citation: Wong KL, Tak Fong DY, Yin Lee IL, Chu S, Tarrant M. Antenatal education to increase exclusive breastfeeding: a randomized controlled trial. Obstet Gynecol. 2014 Nov;124(5):961-968. doi: 10.1097/AOG.0000000000000481.
citation: Mikami FC, de Lourdes Brizot M, Tase TH, Saccuman E, Vieira Francisco RP, Zugaib M. Effect of Prenatal Counseling on Breastfeeding Rates in Mothers of Twins. J Obstet Gynecol Neonatal Nurs. 2017 Mar-Apr;46(2):229-237. doi: 10.1016/j.jogn.2016.10.005. Epub 2017 Jan 5.