Comparing methods for weight gain in premature infants

ISRCTN ISRCTN85196891
DOI https://doi.org/10.1186/ISRCTN85196891
Submission date
07/03/2023
Registration date
23/03/2023
Last edited
29/03/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
In developing countries, high rates of premature birth and slow growth of the unborn baby (intrauterine growth retardation) result in a high incidence of low birth weight. The causes are unknown and there are likely to be many, limiting the effects of interventions before birth (prenatal). Interventions after birth (postnatal) in neonatal intensive care units (NICUs) that facilitate growth and positive contact with parents such as kangaroo mother care (KMC) and infant massage have been independently observed to improve weight gain in preterm infants. The objective of this study is to compare weight gain and length of hospital stay in premature infants receiving Vimala massage, KMC, or both.

Who can participate?
Preterm infants 30-35 weeks of gestational age who were clinically stable, tolerating enteral feeds and had a parent able to provide the intervention.

What does the study involve?
Newborns were randomized into three groups: KMC, Vimala massage, or mixed KMC and massage. The results from each group will be compared with historical controls who received none of the interventions (Control Group). Weight gains over 10 days will be compared.

What are the possible benefits and risks of participating?
KMC ideally paired with exclusive breastfeeding, (ideally) results in early discharge, weight gain and arousing the interest of mothers towards their children. Early contact with the premature baby helps parents to accept their baby's condition more quickly and gradually take over the baby’s care. Numerous studies have shown that preterm infants who receive massage gain weight faster. The mechanism of weight gain through massages is not clear, but it is thought to improve the uptake of nutrients, reduce the effects of stress, decreased basal metabolism and improved metabolic efficiency with subsequent weight gain. No possible associated risks have been described.

Where is the study run from?
Hospital UMAE No. 48 of the Mexican Social Security Institute (Mexico)

When is the study starting and how long is it expected to run for?
March 2008 to January 2009

Who is funding the study?
Mexican Social Security Institute (Mexico)

Who is the main contact?
González, Alma Patricia, MD (Neonatologist, Department of Neonatology), patipili999@hotmail.com (Mexico)

Contact information

Dr Alma Patricia González
Principal Investigator

Avenida Mexico e Insurgentes S/N
León, Guanajuato
37328
Mexico

ORCiD logoORCID ID 0000-0002-3401-7519
Phone +52 477 132 91 26
Email alma.gonzalezx@imss.gob.mx
Dr Alma Patricia González
Scientific

Avenida Mexico e Insurgentes S/N
León, Guanajuato
37328
Mexico

Phone +52 477 132 91 26
Email patipili999@hotmail.com
Dr Gloria-Patricia Sosa-Bustamante
Scientific

Avenida Mexico e Insurgentes S/N
León, Guanajuato
37328
Mexico

ORCiD logoORCID ID 0000-0002-8460-4965
Phone None provided
Email gloria.sosa@imss.gob.mx

Study information

Study designSingle-blind randomized study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleWeight gain in premature infants receiving kangaroo mother care, Vimala massage or both: a randomized clinical trial
Study objectivesWeight gain and length of hospital stay are similar or different in premature infants receiving a massage program, kangaroo mother program, or both.
Ethics approval(s)Approved 31/05/2008, Hospital Ethics Research Board Neonatal Intensive Care Unit of the Hospital UMAE No. 48 of the Mexican Social Security Institute (Avenida Mexico e Insurgentes S/N, Leon Guanajuato, Mexico 37160; +52 477 717 48 00 ext 32 814; 10028hgp48@gmail.com ), ref: R-2008-1002-11
Health condition(s) or problem(s) studiedWeight gain in premature infants
InterventionInfants were randomized with a random number table, to a Kangaroo Mother Care Group, Vimala Massage Group, or a Mixed Group (MG) with both manoeuvres and weight gain monitored daily for 10 days. They were compared to a historical control group (HC) of 21 newborns who received usual nursery care and none of the interventions in a previous study.

The study groups are as follows:
1. Kangaroo mother care
2. Vimala massage
3. Both (kangaroo mother care and Vimala massage)

Infant’s weight, head circumference and caloric intake will be recorded daily between 8 and 9:00 AM during the 10 days of the study. The weight will be monitored by means of a Seca digital scale model 3741321009 and the head circumference will be measured with a flexible millimeter tape. All infants will receive breast milk supplemented by formula (preNAN Nestlé ® 0.8 cal/ml). The incubators in use are ISSOLETE model C-86 brand Nafarrete.
Descriptive statistics and percentages for weight, gestational age, head circumference, type of food and caloric intake will be presented. Student t-tests, X2 and ANOVA will be used to compare groups, and repeated measures ANOVA or Kruskal Wallis test for the comparison of the trends over 10 days. Two-sided p-values <0.05 will be considered statistically significant. The NCSS version 97 statistical program will be used for all calculations.
Intervention typeMixed
Primary outcome measureThe infant’s weight measured using a Seca digital scale daily between 8:00 and 9:00 AM during the 10 days of the study
Secondary outcome measuresHospital stay measured using patient medical notes in days from birth to hospital discharge
Overall study start date01/03/2008
Completion date31/01/2009

Eligibility

Participant type(s)Patient
Age groupNeonate
SexBoth
Target number of participantsA total of 85 babies were included analyzed. 64 were was randomized to the interventions: (22 Kangaroo mother care, 22 Vimala massage, 20 mixed group) and 21 were historic controls.
Total final enrolment79
Key inclusion criteriaWe included neonates with a corrected gestational age of 30 to 35 weeks (according to the Ballard scale), who were clinically stable (required no supplemental oxygen or any additional intervention, other than nutrition and incubator) and receiving orogastric tube feeding.
Key exclusion criteria1. Congenital anomalies
2. Known cardiovascular or abdominal pathologies that could impact weight gain
3. History of maternal drug abuse, or who were experiencing seizures or receiving central nervous system depressor medications or parenteral nutrition
4. Newborns with inadequate caloric intakes
5. Who fasted for more than 6 hours because they had gastric residue
6. Receiving specific visual, auditory, tactile, or kinesthetic stimulation
Date of first enrolment01/06/2008
Date of final enrolment21/01/2009

Locations

Countries of recruitment

  • Mexico

Study participating centre

Hospital UMAE No. 48 of the Mexican Social Security Institute
Avenida Mexico e Insurgentes S/N
León, Guanajuato
37328
Mexico

Sponsor information

Mexican Social Security Institute
Hospital/treatment centre

Avenida México e Insurgentes S/N
León, Guanajuato
37328
Mexico

Phone +52 477 717 48 00, ext 31 814
Email investigaumae48@gmail.com
Website http://www.imss.gob.mx/
ROR logo "ROR" https://ror.org/03xddgg98

Funders

Funder type

Government

Instituto Mexicano del Seguro Social
Government organisation / National government
Alternative name(s)
Mexican Social Security Institute, IMSS
Location
Mexico

Results and Publications

Intention to publish date31/05/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryPublished as a supplement to the results publication
Publication and dissemination planPLanned publication in a high-impact peer reviewed journal
IPD sharing planThe datasets generated and/or analysed during the current study will be published as a supplement to the results publication

Editorial Notes

29/03/2023: Internal review.
20/03/2023: Trial's existence confirmed by the Hospital Ethics Research Board Neonatal Intensive Care Unit of the Hospital UMAE (Mexico)