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Related Experiment Video

Updated: Jan 27, 2026

Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction
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Pharyngeal width and aspiration after stroke.

Il Hwan Jung1, Ho Young Lee, Eunsil Cha

  • 1Department of Physical Medicine and Rehabilitation, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Gyeonggi-do, Republic of Korea.

International Journal of Rehabilitation Research. Internationale Zeitschrift Fur Rehabilitationsforschung. Revue Internationale De Recherches De Readaptation
|March 19, 2019
PubMed
Summary

A new tool, the JOSCYL scale, accurately predicts aspiration in stroke patients using pharyngeal width measurements. This simple method aids in assessing swallowing difficulties and improving patient outcomes.

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Area of Science:

  • Medical Imaging
  • Neurology
  • Swallowing Disorders

Background:

  • Aspiration is a significant complication in stroke patients, leading to dysphagia and increased morbidity.
  • Accurate assessment of aspiration risk is crucial for timely intervention and management in stroke survivors.

Purpose of the Study:

  • To develop and validate a novel tool, the JOSCYL scale, for predicting aspiration in stroke patients.
  • To assess the correlation between pharyngeal width measurements and dysphagia severity.

Main Methods:

  • Pharyngeal width was measured via lateral neck roentgenograms in stroke patients and controls.
  • The JOSCYL width (average pharyngeal width) and JOSCYL scale (JOSCYL width × 100 / neck circumference) were calculated.
  • Spearman correlation and ROC analysis were used to determine predictive accuracy.

Main Results:

  • Stroke patients exhibited significantly larger JOSCYL width and JOSCYL scale compared to controls.
  • Both JOSCYL width and JOSCYL scale showed a significant correlation with dysphagia severity in stroke patients.
  • Optimal cutoffs for predicting aspiration were identified as approximately 18 mm for JOSCYL width and 50 for JOSCYL scale.

Conclusions:

  • The JOSCYL width and JOSCYL scale are precise, easy-to-use indicators for predicting aspiration in stroke patients.
  • These novel measurements demonstrate higher accuracy in predicting aspiration during the chronic stroke stage.
  • The JOSCYL scale offers a valuable addition to the clinical assessment of aspiration risk in stroke survivors.