Direct Swallowing Training and Oral Sensorimotor Stimulation in Preterm Infants

Sponsor
Seoul National University Hospital (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT02508571
Collaborator
(none)
189
1
3
131
1.4

Study Details

Study Description

Brief Summary

This is randomized controlled trial investigating the effects of direct swallowing training and oral sensorimotor stimulation in preterm infants on oral feeding performance.

Condition or Disease Intervention/Treatment Phase
  • Other: Direct swallowing training (DST)
  • Other: Oral sensorimotor stimulation (OSMS)
  • Other: Sham intervention
N/A

Study Design

Study Type:
Interventional
Anticipated Enrollment :
189 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Triple (Care Provider, Investigator, Outcomes Assessor)
Masking Description:
Allocation is concealed from all investigators, nurses, doctors, and parents, with the sole exception of the occupational therapists, who provided the interventions.
Primary Purpose:
Supportive Care
Official Title:
The Effects of Direct Swallowing Training and Oral Sensorimotor Stimulation in Preterm Infants
Study Start Date :
Jul 1, 2015
Actual Primary Completion Date :
Sep 1, 2020
Anticipated Study Completion Date :
Jun 1, 2026

Arms and Interventions

Arm Intervention/Treatment
Sham Comparator: Control

Two 15-minute sessions of sham intervention/day, five days a week

Other: Sham intervention
The sham intervention consisted of the therapists placing his/her hands into the incubator or bassinet for 15 minutes without touching the infants. It is continued until infants are able to complete independent oral feeding, 2 days in a row with no adverse events that do not self-resolve.

Experimental: DST group

One session of DST and the other of sham intervention/day, five days a week

Other: Direct swallowing training (DST)
The DST consists of placing a bolus of 0.05-0.2 mL of formula milk (if the parents refuse, distilled water) via a 1-mL syringe directly on the medial-posterior part of the tongue approximately at the level of the hard and soft palate junction. The volume is started with 0.05 mL, and increased in increments of 0.05 mL to a maximum of 0.2 mL until the swallowing reflex is observed. Once the minimal volume necessary to initiate the swallow reflex is identified, it is used for the duration of the training. The bolus is provided every 30 sec over the 15-minute program or as tolerated. It is continued until infants are able to complete independent oral feeding, 2 days in a row with no adverse events that do not self-resolve.

Other: Sham intervention
The sham intervention consisted of the therapists placing his/her hands into the incubator or bassinet for 15 minutes without touching the infants. It is continued until infants are able to complete independent oral feeding, 2 days in a row with no adverse events that do not self-resolve.

Experimental: DST+OSMS group

One session of DST and the other of OSMS/day, five days a week

Other: Direct swallowing training (DST)
The DST consists of placing a bolus of 0.05-0.2 mL of formula milk (if the parents refuse, distilled water) via a 1-mL syringe directly on the medial-posterior part of the tongue approximately at the level of the hard and soft palate junction. The volume is started with 0.05 mL, and increased in increments of 0.05 mL to a maximum of 0.2 mL until the swallowing reflex is observed. Once the minimal volume necessary to initiate the swallow reflex is identified, it is used for the duration of the training. The bolus is provided every 30 sec over the 15-minute program or as tolerated. It is continued until infants are able to complete independent oral feeding, 2 days in a row with no adverse events that do not self-resolve.

Other: Oral sensorimotor stimulation (OSMS)
The OSMS consists of a 15-minute stimulation program, whereby the first 12 minutes involve stroking the cheeks, lips, gums, and tongue, and the final 3 minutes consist of sucking on a pacifier. It is continued until infants are able to complete independent oral feeding, 2 days in a row with no adverse events that do not self-resolve.

Outcome Measures

Primary Outcome Measures

  1. Days from start to independent oral feeding [From date of starting oral feeding until the date of independent, full oral feeding, an expected average of 3 weeks]

    Days from start to independent oral feeding (independent oral feeding, 2 days in a row with no adverse events that do not self-resolve - The first successful day)

Secondary Outcome Measures

  1. Days from start to first full oral feeding [From date of starting oral feeding until the date of first full oral feeding, an expected average of 2 weeks]

    first full oral feeding : The first day that attain the full oral feeding regardless of feeding side effects

  2. Days from start to complete full oral feeding [From date of starting oral feeding until the date of complete oral full feeding, an expected average of 3-4weeks]

    complete full oral feeding : 2 days in a row without any adverse events The first successful day)

  3. Overall transfer [Total number of assessment : 3 times ( 1. starting oral feeding, 2. volume of oral feeding/total feeding volume x 100 = 50%, 3. volume of oral feeding/total feeding volume) x 100 = 100%]

    % volume taken/volume prescribed

  4. Proficiency [Total number of assessment : 3 times ( 1. starting oral feeding, 2. volume of oral feeding/total feeding volume x 100 = 50%, 3. volume of oral feeding/total feeding volume) x 100 = 100%]

    % volume taken at 5 min/volume prescribed

  5. Rate of transfer [Total number of assessment : 3 times ( 1. starting oral feeding, 2. volume of oral feeding/total feeding volume x 100 = 50%, 3. volume of oral feeding/total feeding volume) x 100 = 100%]

    mL/min volume of milk consumed relative to the duration of the oral Feeding session

  6. Volume loss [Total number of assessment : 3 times ( 1. starting oral feeding, 2. volume of oral feeding/total feeding volume x 100 = 50%, 3. volume of oral feeding/total feeding volume) x 100 = 100%]

    % volume of milk spilled from the lips as a percentage of the total milk transferred

  7. Neonatal Oral Motor Assessment Scale (NOMAS) [Total number of assessment : 2 times ( 1. 3-5 days after starting oral feeding, 2. within 3 days after stopping intervention)]

    comprehensive description of the infant's feeding patterns identify normal oral-motor patterns and to differentiate disorganized from dysfunctional patterns

  8. Length of hospital stay [From date of admission until the date of discharge, through study completion, expected average days of 3 month]

    Length of hospital stay

  9. Bayley Scales of Infant and Toddler Development, Third Edition [Corrected age 18-24 months]

    an individually administered instrument designed to assess the developmental functioning of infants, toddlers, and young children. cognitive scale, motor scale (gross motor, fine motor), language scale (receptive communication, expressive communication) subtest total raw scores & scaled scores / composite scores /percentile ranks/ confidence intervals Total raw score range (min~max) : cognitive (0~91), receptive communication (0~49), expressive communication (0~48), fine motor (0~66), gross motor (0~72) Higher scores mean better outcomes

  10. Korean version of MacArthur-Bates Communicative Development Inventories (K M-B CDI) [postnatal age 36±2 months]

    -a simple screening test for language development

  11. Korean-Wechsler Preschool and Primary Scale of Intelligence (K-WPPSI)-Fourth edition. [aged 4:00~4:11 years]

    An innovative measure of cognitive development and an intelligence test for preschoolers and young children Primary index scales> verbal comprehension, visual spatial, fluid reasoning, working memory, processing speed ==> Full scale IQ Ancillary index scales > vocabulary acquisition scaled score, composite score, percentile rank, CI Range of Full scale IQ : min (40) ~ max (160) Higher scores mean better outcomes.

  12. Korean Developmental Screening Test [postnatal age 48±3 months]

    A fill-up questionnaire to be answered by parents so as to determine who experience developmental problems Domains: gross motor, fine motor, language, cognition, sociality, self-care Score range of each domain : min (0) ~ max (24) Higher scores mean better outcomes.

  13. Strengths and Difficulties Questionnaire [postnatal age 48±3 months]

    a brief behavioural screening questionnaire 5 subscales: Emotional problems scale, Conduct problems scale, Hyperactivity scale, Peer problems scale, Prosocial scale (score range of each scale : 0-10) total difficulties score : summing scores from all the scales except the prosocial scale (score range : 0-40) Lower scores mean better outcomes for the all scales except the prosocial scale

  14. Behavioral Pediatrics Feeding Assessment Scale (BPFAS) [postnatal age 48±3 months]

    A comprehensive and widely used measure of behavioral and skill-based feeding problems It consists of 35 questions: 25 related to child eating, and 10 related to parent feeding behaviors. Parents answer each question on a five-point Likert scale, then indicate whether they perceive that behavior to be problematic or not. Child an parent frequency scores : from the Likert scales (score range : min 35 ~ max 175) Child and parent problem scores : from the yes/no questions

Eligibility Criteria

Criteria

Ages Eligible for Study:
22 Weeks to 31 Weeks
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Preterm infants : before 32+0 weeks gestation

  • Infants who are receiving full tube feeding (more than 120 ml/kg/day)

  • Infants who discontinue of nasal continuous positive airway pressure before postmenstrual age 33+0 weeks

  • 'Feeders and growers'

  • The parents of the subject voluntarily sign the informed consent

Exclusion Criteria:
  • Major congenital anomalies : face, central nervous system, gastrointestine, heart, etc

  • Gastrointestinal complications

  • Chronic medical complications : Intraventricular hemorrhage ≥ Grade III, periventricular leukomalacia, surgical necrotizing enterocolitis

Contacts and Locations

Locations

Site City State Country Postal Code
1 Seoul National University Hospital Seoul Korea, Republic of

Sponsors and Collaborators

  • Seoul National University Hospital

Investigators

  • Principal Investigator: Ee-kyung Kim, Seoun National University Hospital

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Ee-Kyung Kim, Clinical associate professor, Seoul National University Hospital
ClinicalTrials.gov Identifier:
NCT02508571
Other Study ID Numbers:
  • 1401139552
First Posted:
Jul 27, 2015
Last Update Posted:
May 25, 2022
Last Verified:
May 1, 2022
Keywords provided by Ee-Kyung Kim, Clinical associate professor, Seoul National University Hospital
Additional relevant MeSH terms:

Study Results

No Results Posted as of May 25, 2022