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Reflexive Coughing Force in Severe Aspirators

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ClinicalTrials.gov Identifier: NCT02080988
Recruitment Status : Completed
First Posted : March 7, 2014
Last Update Posted : November 5, 2015
Information provided by (Responsible Party):

Study Description
Brief Summary:
To assess coughing force during reflex coughing test in those with severe dysphagia and severe aspiration and compare them to than those with stroke patients with no signs of dysphagia/aspiration.

Condition or disease

Detailed Description:

Severe aspiration with a compromised cough function can be a risk factor of aspiration pneumonia.

Reflexive coughing can be tested by administration of citric acid via a nebulizer. The objective of this study is to measure the cough force produced via citric acid inhalation challenge, and determine if those with severe aspiration with severe dysphagia have more weak cough force during reflexive cough testing that those post-stroke patients with no signs of aspiration or dysphagia after stroke.

We also aimed to measure the strenght of the respiratory measures with the use of surface EMG.

Study Design

Study Type : Observational
Actual Enrollment : 20 participants
Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Cross Sectional Evaluation of Coughing Force in Stroke Patients With Severe Aspiration
Study Start Date : October 2013
Primary Completion Date : September 2014
Study Completion Date : October 2014

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Cough
U.S. FDA Resources

Groups and Cohorts

Silent aspirators
Stroke patients with dysphagia with severe aspiration
Non aspirating, no dysphagia group
Stroke patients with no dysphagia and no evidence of aspiration

Outcome Measures

Primary Outcome Measures :
  1. Coughing force [ Time Frame: baseline one time ]
    Coughing force as assessed by reflexive cough test

Secondary Outcome Measures :
  1. Coughing force during voluntary coughing [ Time Frame: baseline one time ]

Other Outcome Measures:
  1. Spirometry findings (Forced vital capacity, forced expiratory volume at one second) [ Time Frame: baseline one time ]
  2. Maximal inspiratory and expiratory pressure [ Time Frame: baseline one time ]
  3. Root mean square values of respiratory muscles [ Time Frame: baseline one time ]
  4. Diaphragm excursion as assessed by M mode sonography [ Time Frame: baseline one time ]

Eligibility Criteria

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Stroke patients with dysphagia with aspiration

Inclusion Criteria:

  • Confirmed stroke lesions
  • Confirmed aspiration during vfss or fees examinations

Exclusion Criteria:

  • Episode of acute pneumonia or pulmonary embolism at time of enrollment
  • Previous history of chronic respiratory disorders or other systemic disorders that may affect respiratory function ( ex, rheumatoid disease, spinal cord injury)
  • Stroke patients with multiple brain lesions
  • Episode of Diaphragm weakness due to peripheral polyneuropathy or unilateral phrenic nerve palsy
  • Previous episode of abdominal or thoracic surgery within one year of enrollment
  • Concomitant diagnosis of myopathy, muscular dystrophy or other disorders that may affect respiratory muscles.
  • Episode of rib fracture within one year of enrollment
  • Chronic alcoholism
  • Patient with previous diagnosis of dementia or with impaired cognitive function that may limit full participation at the evaluation
  • Patient with tracheostomy state
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02080988

Korea, Republic of
Bucheon St Mary's Hospital
Bucheon, Korea, Republic of
Sponsors and Collaborators
The Catholic University of Korea
Principal Investigator: Sun Im, Md PhD The Catholic University of Korea
Study Chair: Geun Young Park, MD PhD The Catholic University of Korea
More Information

Responsible Party: Sun Im, Assistant Professor, The Catholic University of Korea
ClinicalTrials.gov Identifier: NCT02080988     History of Changes
Other Study ID Numbers: HC 13OISE0066_2
BCMC13AH06 ( Other Identifier: Bucheon St Mary's Hospital )
First Posted: March 7, 2014    Key Record Dates
Last Update Posted: November 5, 2015
Last Verified: November 2015

Keywords provided by Sun Im, The Catholic University of Korea:
deglutition disorders
aspiration pneumonia
respiratory function

Additional relevant MeSH terms:
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases