The goal of this study is to obtain data that well help inform the feasibility and design of a randomized control trial of the therapeutic Neuromuscular Electrical Stimulation (NMES) technique in improving the swallowing function of young infants presenting with severe dysphagia.
Infants with severe neurologic disability often have difficulty in eating by mouth due to a disruption in the swallowing process. This swallowing dysfunction, also known as dysphagia, is often evident early in life and when severe can be permanent. Dysphagia can lead to an inability to take in enough food to maintain an adequate weight and result in malnutrition. It also can result in food going into the lungs instead of the stomach, resulting in an illness called aspiration pneumonia. Both of these complications may require feeding by tube either through the nose into the stomach or directly into the stomach via the abdominal wall, to bypass the swallowing process. This process is resource intense, can be associated with a number of complications and may result in a reduced quality of life for both the infant and caregivers. Currently, there are no effective treatments to change the natural course of dysphagia in this context.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
10
The intervention will consist of a period of treatment with NMES. This treatment will involve 20-45 minute feeding therapy sessions during which NMES will be administered by an Occupational Therapist. Frequency of therapy sessions will be 4 times per week for the first 2 weeks (as in inpatient, if hospitalized) and then biweekly for 14 weeks for a total of 36 sessions (over 16 weeks). For patients who are discharged prior to the first 2 weeks of treatment, outpatient sessions will be biweekly.
The Hospital for Sick Children
Toronto, Ontario, Canada
Effectiveness
The primary outcome will be an improvement in swallowing function as determined by videofluoroscopic feeding study from baseline to end of treatment (4 months after baseline). The swallowing function will be graded as to the number of textures the infant can safely swallow at three measurement points (baseline, 2 months and 4 months). An improvement in the number of textures the infant can swallow will define improvement. This will be recorded using a standard reporting form.
Time frame: 4 months
Resolution of dysphagia
The proportion of children whose dysphagia resolves (i.e. safe to feed on all consistencies of solids and liquids) at 4 months will be calculated.
Time frame: 4 months
Feeding ability
The feeding ability will be assessed using a clinical exam by an occupational therapist.
Time frame: baseline, 2 months and 4 months from enrollment
Oral feeding ability and need for tube feeding
Oral feeding ability and the need for tube feeding will be assessed using a structured scale based on parental report of dietary intake that includes: Level 1: Nothing by mouth, all nutrition by tube feeds, Level 2: \<50% intake by mouth, tube feeding requirement, Level 3: \>50% intake by mouth, tube feeding, requirement, Level 4: All by mouth, no tube feeding.
Time frame: baseline, 2 months, 4 months from enrollment
Hospitalizations for lower respiratory tract illness
The frequency of hospitalizations for lower respiratory tract illnesses in the 4 months following enrollment into the study will be determined by administering a structured questionnaire to parents.
Time frame: 4 months
Safety and Adverse events
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Data collection of adverse events will occur through administration of a structured questionnaire by the occupational therapist at the end of each treatment session and just prior to the subsequent session.
Time frame: duration of subjects involvment in the study
Caregiver acceptability and perception of feeding
Two questions using a 10 cm visual analogue scale will ask whether parents were satisfied with the treatment process and whether the caregiver felt that their child's feeding ability improved during treatment. Two further open ended questions will probe what aspects of the treatment they felt were positive and what aspects they felt were negative.
Time frame: at 4 months
Data on treatment procedures
Data will be collected by the occupational therapist after each treatment session. This will include method of feeding, amount of food taken, response to treatment, length of treatment session, location of electrode placement and amplitude of stimulation used.
Time frame: 4 months