Lung Ultrasound for Infants' Swallowing Disorders

NCT ID: NCT04253951

Last Updated: 2022-06-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-04-01

Study Completion Date

2023-12-15

Brief Summary

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The aim is to test the effectiveness of lung ultrasound (LUS) in the dynamic assessment of aspiration related to abnormal swallowing in infants and young children with neurological impairment (cerebral palsy/developmental disabilities). Neither standardized measure is available, nor protocols for invasive fibre-optic endoscopic examination of swallowing (FEES) and x-Ray videofluoroscopic swallowing study (VFSS) to be used in such population. LUS offers several advantages: time saving for aspiration diagnosis; safeness (neither invasiveness nor radiation); repeatability with different meal consistencies or to monitor interventions efficacy; cost-effectiveness; savings of x-Ray exposition (compared to VFSS). All these advantages may lead infants to improve clinical behavioural and neurological outcomes and reduce stressful interactions with caregivers, and to reduce morbidities and hospitalization costs for respiratory and non-respiratory complications related to swallowing disorders.

Detailed Description

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The dynamic use of LUS for monitoring feeding related aspiration can be effective in detecting meal-related pulmonary abnormalities in neurologically impaired infants and that LUS-management will improve medical/neurological/behavioural status, and reduce chronic pain/discomfort and stress for caregivers. LUS effectiveness is expected to reduce the need for x-Ray, invasive and more expensive techniques (VFSS and FEES). Results may be translated into clinical practice in the management of swallowing disorders in a very vulnerable population, by reducing invasiveness, possible x-Ray early exposition risks, costs, medical complications, and by assessing risk categories based on neuroimaging MRI markers, to rationalize prevention and intervention.

Preliminary data. LUS examinations have been performed on 6 infants with neurological impairment (mean age 15 ± 8 months; Gross Motor Function Classification System (GMFCS) range 2-5, median=4) and in 3 healthy infants (mean age 25 ± 3 months) before and right after a meal. A LUS score ranging from 0 to 18 was established, according to previous literature (0= normal pattern, 1= separated B-lines, 2= confluent B-lines or B-lines with pleural alterations, 3= consolidations; the score 0-3 was then calculated in all 6 thoracic scanning areas and summed up). In the 6 infants with neurological impairment, at paired sample t test, LUS score changed before and after meal (pre-meal 2.50±2.95 vs post-meal 5.17±3.25, p=0.01), with very large effect size (Cohen d=1.6). No change was detected in the control group. Changes in LUS score pre and post-meal correlated with GMFCS (p=0.03, r=0.64) and with adapted Eating and Drinking Ability Classification System (EDACS) scores (p=0.04, r=0.59), as more severe clinical pictures resulted in worse LUS scores. The LUS score pre- meal was worse in infants with neurological impairment compared to controls (2.50±2.95 vs 0.67±0.58, p=0.14). Results make LUS extremely promising as a tool to monitor pulmonary aeration changes in infants with neurological impairment. Feasibility of dorsal and ventral oromotor tract reconstruction has been tested in an infant with neurological impairment.

Specific Aim 1:

* To establish the feasibility and effectiveness of LUS-guided management in the detection of aspiration related to swallowing disorders in children with cerebral palsy and other developmental disabilities, determining advantages of LUS-guided management over standard care on medical (respiratory illness and growth rate) LUS findings themselves and behavioural/neurological outcomes
* To compare diagnostic accuracy of LUS versus X-ray VFSS and invasive FEES

Specific Aim 2:

\- To determine specific parameters to estimate aspiration entity by LUS (eg cut-off values for the diagnosis of clinically significant silent or overt aspiration, responsiveness of LUS monitoring to medical, postural or food consistencies adaptation) and their relationship with standardised clinical feeding evaluation and medical/behavioural/neurological measures in order to define risk groups for aspiration

Specific Aim 3:

* To evaluate other applications/potentialities of LUS in children with cerebral palsy and other developmental disabilities.
* To uncover the impact of brain abnormalities detected by brain MRI on LUS findings, for establishing risk categories for unsafe swallowing disorders on early imaging markers, and potential clinical recommendations for early management.

Experimental Design Aim 1:

Double-blinded randomized parallel-designed controlled trial (Consort checklist), with block randomization (blocks of size 4), in one of 2 groups: 1) LUS-monitored management (LUS-m); 2) Standard care management (SC-m). Both groups will undergo an experimental 6-months follow-up. In the first 3 months, participants will be evaluated a minimum of 1 time per month, in-hospital, for a total of 3 evaluations (T1, T2 and T3), plus baseline (T0). At any time point, they will undergo at least one LUS-monitored (before and after) feeding trial (different consistencies might be tested in separate repeated trials according to clinical evaluation). A further LUS evaluation will be performed at a distance of 3 hours, before the next meal to check for resolution of after-meal abnormalities. Both the clinicians who will perform and score LUS, and the patients' family will be blinded to randomization. The child neurologist and the speech and language pathologist (SLP) will be informed of the result of LUS only in the LUS-m group and will include that result to impact on feeding care (postural, thickening fluids or with drugs available for GERD). LUS results in the SC-m group will be available only at the time of data analyses. All meals will be monitored by pulse-oximetry and video recording. A further 6-months LUS-monitored and clinical assessment (T4) will be delivered for collecting outcome measures in both treatment groups. At T0, T3 and T4 time points, infants will perform standardized medical/behavioural/neurological, chronic pain/discomfort assessments. At T0 and T4, a blood sample will be collected, to evaluate general and nutritional status, and a quantitative ultrasound (QUS) will be performed to evaluate bone density. A parent stress questionnaire (Parenting Stress Index (PSI)) will be delivered (T0, T3 and T4). Between T0 and T4, parents will be asked to fill a respiratory infection-diary for respiratory illness rate calculation. VFSS and FEES data will be collected, compared in frequency of execution between groups, and their results will be compared to LUS findings. Primary and secondary outcome measures will be collected at both T3 (short-term) and T4 (long-term).

Experimental Design Aim 2:

Aim 2 is based on the same design as Aim 1. We will explore the frequency, severity and distribution of basal and feeding related LUS parameters and their relationship with clinical (feeding assessment/medical/behavioural/neurological/chronic pain) measures, interventions (postural, thickening fluids or with drugs available for GERD), inter- and intra- group at any time point.

Other possible applications of LUS in the enrolled population will be collected (e.g. pneumonia detection and monitoring).

Experimental Design Aim 3:

Brain MRI is a clinical procedure in the diagnostic approach to children with neurological impairment. Brain abnormalities and corticobulbar tract integrity for lips, tongue, larynx motor and sensory control will be checked to uncover the neural circuits that may underlay swallowing problems leading to silent or overt aspiration and pulmonary risk estimated by LUS. Brain lesions topography and severity will be assessed by using a standardized MRI acquisition protocol according to the diagnostic procedure in use at Stella Maris Scientific Institute MRI Lab. Diffusion-weighted Imaging (DWI) will be used with the aim of revealing structural integrity and connectivity along white matter tracts involved in swallowing.

Expected outcomes:

the LUS-m group having better outcomes, at short- and long-term, including: having lower rate of pulmonary illness, better growth curve, reduction of execution rate of VFSS/FEES. Also, better results at blood sample and bone metabolism, lower pain indices, better scores at neurological/behavioural clinical measures, and less stressful interaction with caregivers.

Conditions

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Cerebral Palsy Pediatric Neurological Disorder Developmental Disability

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Double-blinded randomized parallel-designed controlled trial (Consort checklist, 21), with block randomization (blocks of size 4), in one of 2 groups: 1) LUS-monitored management (LUS-m); 2) Standard care management (SC-m). Both groups will undergo an experimental 6-months follow-up. In the first 3 months, participants will be evaluated a minimum of 1 time per month, in-hospital, for a total of 3 evaluations (T1, T2 and T3), plus baseline (T0).
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors
Both the clinicians who will perform and score LUS, and the patients' family will be blinded to randomization. The care providers (child neurologist and speech and language pathologist (SLP) will be informed of the result of LUS only in the LUS-m group and will include that result to impact on feeding care (postural, thickening fluids or with drugs available for GERD). LUS results in the SC-m group will be available only at the time of data analyses.

Study Groups

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LUS-monitored management (LUS-m)

In the first 3 months, participants will be evaluated a minimum of 1 time per month, in-hospital, for a total of 3 evaluations (T1, T2 and T3), plus baseline (T0). At any time point, they will undergo at least one LUS-monitored (before and after) feeding trial (different consistencies might be tested in separate repeated trials according to clinical evaluation). A further LUS evaluation will be performed at a distance of 3 hours, before the next meal to check for resolution of after-meal abnormalities.

Group Type EXPERIMENTAL

Lung Ultrasound (LUS)-monitored feeding trial

Intervention Type DIAGNOSTIC_TEST

LUS-monitored (before and after) feeding trial (different consistencies might be tested in separate repeated trials according to clinical evaluation). A further LUS evaluation will be performed at a distance of 3 hours, before the next meal to check for resolution of after-meal abnormalities. All pulmonary fields will be explored according to semeiotics and previous literature.

Standard care management (SC-m)

Sham protocol with LUS performed at the same timepoints. LUS results in the SC-m group will be available only at the time of data analyses for comparison by investigators. They will not be used for clinical decisions.

Group Type SHAM_COMPARATOR

Lung Ultrasound (LUS)-monitored feeding trial

Intervention Type DIAGNOSTIC_TEST

LUS-monitored (before and after) feeding trial (different consistencies might be tested in separate repeated trials according to clinical evaluation). A further LUS evaluation will be performed at a distance of 3 hours, before the next meal to check for resolution of after-meal abnormalities. All pulmonary fields will be explored according to semeiotics and previous literature.

Interventions

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Lung Ultrasound (LUS)-monitored feeding trial

LUS-monitored (before and after) feeding trial (different consistencies might be tested in separate repeated trials according to clinical evaluation). A further LUS evaluation will be performed at a distance of 3 hours, before the next meal to check for resolution of after-meal abnormalities. All pulmonary fields will be explored according to semeiotics and previous literature.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* cerebral palsy or abnormal muscular tone at any age between 0-3 years of life due disorders other than cerebral palsy;
* motor developmental delay assessed by a quantitative scale for infants and young children development (\<5 sd according to age)
* in absence of the previous clinical indices, if there is the clinical suspicion of GERD or dysphagia based on clinical symptoms
* a brain MRI acquisition done before or programmed prior the end of the study period as part of their diagnostic procedure.

Exclusion Criteria

* epileptic spasm
* drugs for muscle tone abnormalities or GERD introduced or modified less than 3 weeks before potential enrollment
Minimum Eligible Age

3 Weeks

Maximum Eligible Age

6 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ministry of Health, Italy

OTHER_GOV

Sponsor Role collaborator

University of Pisa

OTHER

Sponsor Role collaborator

Fondazione C.N.R./Regione Toscana "G. Monasterio", Pisa, Italy

OTHER_GOV

Sponsor Role collaborator

IRCCS Fondazione Stella Maris

OTHER

Sponsor Role lead

Responsible Party

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Simona Fiori

Principal Investigator, MD, PhD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Simona Fiori, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

IRCCS Fondazione Stella Maris

Locations

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IRCCS Fondazione Stella Maris

Tirrenia, Tuscany, Italy

Site Status RECRUITING

IRCCS Fondazione Stella Maris

Pisa, , Italy

Site Status NOT_YET_RECRUITING

Countries

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Italy

Central Contacts

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Simona Fiori, MD, PhD

Role: CONTACT

0039 050886310

Elena Moretti, SLP

Role: CONTACT

0039 050886310

Facility Contacts

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Giovanni Cioni

Role: primary

050886233

Giuseppina Sgandurra

Role: backup

Simona Fiori, MD, PhD

Role: primary

0039 050886310

Giovanni Cioni, MD

Role: backup

0039 050886229

References

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Other Identifiers

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LUNCH-2019

Identifier Type: -

Identifier Source: org_study_id

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