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Related Experiment Videos

Interobserver agreement on normal swallowing physiology as viewed by videoendoscopy.

J A Logemann1, A W Rademaker, B R Pauloski

  • 1Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL 60208, USA. j-logemann@nwu.edu

Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)
|July 8, 1999
PubMed
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Observer agreement in videonasendoscopy for swallowing assessment reached 83% for normal oropharyngeal swallow events. Endoscopic position impacted agreement, but bolus volume did not, guiding future observer training.

Area of Science:

  • Otolaryngology
  • Swallowing Physiology
  • Diagnostic Imaging

Background:

  • Accurate assessment of oropharyngeal swallowing is crucial for diagnosing and managing dysphagia.
  • Videonasendoscopy is a common tool for evaluating swallowing function.
  • Standardizing observer interpretation is essential for reliable diagnostic outcomes.

Purpose of the Study:

  • To evaluate inter-observer agreement in identifying normal oropharyngeal swallow events using videonasendoscopy.
  • To determine the influence of endoscopic position and bolus volume on observer agreement.
  • To inform training needs for endoscopic swallowing assessments.

Main Methods:

  • Two observers assessed videonasendoscopic recordings of 1-ml and 5-ml water swallows in 3 healthy young adults.

Related Experiment Videos

  • Recordings were analyzed from two distinct endoscopic positions: high (near uvula) and low (near epiglottis).
  • Agreement on the onset and termination of 12 specific swallow events was calculated.

    • Main Results:

    • Overall inter-observer agreement for identifying swallow events was 83%.
    • Endoscopic position significantly affected observer agreement on several swallow events.
    • Bolus volume (1 ml vs. 5 ml) did not influence observer agreement.

    Conclusions:

    • Observer agreement in videonasendoscopic swallowing evaluations is substantial but can be influenced by procedural factors.
    • Endoscopic positioning is a critical variable affecting reliability in swallowing assessments.
    • Targeted training focusing on optimal scope positioning can enhance consistency in videonasendoscopic swallowing evaluations.