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Diagnostic Value of Modified Cough Reflex Test With Staged Water Swallow Test in Post-Stroke Patients Showing Dysphagia

Yonsei University logo

Yonsei University

Status

Completed

Conditions

Stroke
Aspiration
Pneumonia
Deglutition Disorders

Study type

Observational

Funder types

Other

Identifiers

NCT06770413
4-2019-0111

Details and patient eligibility

About

The investigators conducted staged water swallow test (sWST) and modified cough reflex test (mCRT) on stroke patients referred for videofluoroscopic swallowing studies (VFSS) due to dysphagia. The patients were followed for up to four weeks to examine the incidence and timing of aspiration pneumonia, the relationship between these tests and VFSS results, and the diagnostic value of these tests as screening tools. Descriptive statistics will be presented for the incidence and timing of pneumonia, as well as the results of the SWST and MCRT. Regression analysis will be conducted to determine the explanatory power of each aspiration indicator (sWST and mCRT) in predicting aspiration or aspiration pneumonia. Additionally, using the VFSS results and the diagnosis of aspiration pneumonia as gold standards, the validity, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), odds ratio (OR), and relative risk (RR) for sWST, mCRT, and their combination will be calculated to evaluate their diagnostic value.

Enrollment

328 patients

Sex

All

Ages

20 to 99 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • either ischemic or hemorrhagic stroke confirmed by a computed topography or magnetic resonance imaging
  • aged 20 years or older
  • signs or symptoms of dysphagia.

Exclusion criteria

  • inability to maintain sitting posture with support
  • dyspnea requiring oxygen supplementation
  • diagnosed with aspiration pneumonia at enrollment
  • diagnosed with co-existing major neuromuscular disorders affecting swallowing
  • diagnosed with infectious diseases requiring isolation
  • refusal to participate

Trial design

328 participants in 2 patient groups

Pneumonia group
Description:
stroke patients who were diagnosed with pnuemonia within 4 week follow up period
non-Pneumonia group
Description:
stroke patients who were not diagnosed with pnuemonia within 4 week follow up period

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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