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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02473432
Other study ID # PSM/RHB/NR/15
Secondary ID
Status Completed
Phase Phase 4
First received June 12, 2015
Last updated February 15, 2016
Start date December 2013
Est. completion date September 2015

Study information

Verified date February 2016
Source Parc de Salut Mar
Contact n/a
Is FDA regulated No
Health authority Spain: Comité Ético de Investigación Clínica
Study type Interventional

Clinical Trial Summary

This study, part of a larger research project (The Retornus Study), is aimed to evaluate new strategies to optimize rehabilitation outcomes in dysphagic stroke patients. Main objective is to assess effectiveness of neuromuscular electroestimulation (NMES) in combination with respiratory muscle training (RMT) in the treatment of oropharyngeal dysphagia in subacute stroke patients.


Description:

Dysphagia is present in a significant proportion of subacute stroke patients (up to 85%, depending on the series) and is associated with an increase in medical complications such as bronchoaspirative pneumoniae which is responsible for approximately half of the deaths that occur in these patients. Besides, the risk of pneumonia in patients with dysphagia is three times higher compared to those patients without. Since there is no drug able to restore the swallowing and respiratory muscle function, neurological rehabilitation apperars to be as the mainstay of treatment of these disorders.

Respiratory muscle weakness is common after stroke, but how it contributes in the development of bronchoaspiration pneumonia is not well determined. In acute phases of stroke, the mechanism seems to be more related to an impaired central drive than the reduction of strength in respiratory muscle.

Otherwise, the NMES aims to improve muscle strength. The NMES accelerates swallowing recovery since it induces brain reorganitzation after stroke through sensory and motor stimulation of peripheral nerves, mainly in swallowing aerea.


Recruitment information / eligibility

Status Completed
Enrollment 62
Est. completion date September 2015
Est. primary completion date June 2015
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

- First-ever ischemic stroke

- Time since stroke onset: 1 to 3 weeks

- Tracheobronchial aspiration evaluated with the gold standard, videofluoroscopy,

- Cognitive impairment (Short Portable Mental Status Questionnaire less than 3)

Exclusion Criteria:

- Previous history of neurological diseases that might be associated with the presence of dysphagia

- Previous history of pulmonary diseases

- Significant alcohol abuse (>80 g/day) and 4) medical treatment with potential effect on muscle structure and function (steroids,thyroid hormones, immunosuppressors).

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Procedure:
RMT + usual care
Respiratory muscle training is performed with the Orygen Dual valve (inspiratory and espiratory trainer)
NMES
Neuromuscular electrical stimulation is performed with the Vital Stim ® device (approved by the FDA for dysphagia treatment). It consists in the placement of two electrodes located in suprahyoid muscles as above described.
Usual care
Standard swallow therapy consists of physiotherapy, occupational therapy and speech therapy targeting specific swallow impairments. In the case of dysphagia, the standard pattern includes measures to protect the airway and compensatory techniques.

Locations

Country Name City State
Spain Hospital de l'Esperança Barcelona

Sponsors (1)

Lead Sponsor Collaborator
Parc de Salut Mar

Country where clinical trial is conducted

Spain, 

References & Publications (6)

Chiara T, Martin AD, Davenport PW, Bolser DC. Expiratory muscle strength training in persons with multiple sclerosis having mild to moderate disability: effect on maximal expiratory pressure, pulmonary function, and maximal voluntary cough. Arch Phys Med Rehabil. 2006 Apr;87(4):468-73. — View Citation

Huckabee ML, Doeltgen S. Emerging modalities in dysphagia rehabilitation: neuromuscular electrical stimulation. N Z Med J. 2007 Oct 12;120(1263):U2744. Review. — View Citation

Kulnik ST, Birring SS, Moxham J, Rafferty GF, Kalra L. Does respiratory muscle training improve cough flow in acute stroke? Pilot randomized controlled trial. Stroke. 2015 Feb;46(2):447-53. doi: 10.1161/STROKEAHA.114.007110. Epub 2014 Dec 11. — View Citation

Logemann JA. The effects of VitalStim on clinical and research thinking in dysphagia. Dysphagia. 2007 Jan;22(1):11-2. Epub 2007 Jan 10. — View Citation

Martino R, Foley N, Bhogal S, Diamant N, Speechley M, Teasell R. Dysphagia after stroke: incidence, diagnosis, and pulmonary complications. Stroke. 2005 Dec;36(12):2756-63. Epub 2005 Nov 3. Review. — View Citation

Wheeler KM, Chiara T, Sapienza CM. Surface electromyographic activity of the submental muscles during swallow and expiratory pressure threshold training tasks. Dysphagia. 2007 Apr;22(2):108-16. Epub 2007 Feb 10. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Penetration Aspiration Scale Videofluoroscopy swallow assessment with the 8-point Penetration Aspiration Scale (PAS): PAS score of 1 indicates a normal test, scores from 2 to 5 indicate passage of material into the larynx that does not pass below the vocal folds (penetration) and scores from 6 to 8 indicate passage of material below the level of vocal folds (aspiration) up to 3 months follow-up No
Secondary Maximal inspiratory and expiratory muscle strength Maximal respiratory muscle strength is assessed through maximal inspiratory and expiratory pressures (PImax and PEmax, respectively) measured at the mouth. To determine respiratory pressures, patients were urged to perform a maximum inspiration from residual volume against an occluded airway and a maximum expiratory effort from total lung capacity. up to 3 months follow-up No
Secondary Security of swallowing oral phase Security signs (tone of voice, coughing during or after eating, or desaturation of more than 3% compared to baseline pulse oximetry) are assessed with the Volume Viscosity Swallow Test:(V-VST). up to 3 months follow-up Yes
Secondary Number of participants with signs of impaired efficacy ( Piecemeal deglutition and oropharyngeal residue). up to 3 months follow-up No
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