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Related Experiment Videos

Does chronic cervical myelopathy affect respiratory function?

Hiromitsu Toyoda1, Hiroaki Nakamura, Sadahiko Konishi

  • 1Department of Orthopaedic Surgery, Osaka City University Medical School, Osaka, Japan.

Journal of Neurosurgery. Spine
|September 7, 2004
PubMed
Summary

Patients with chronic cervical myelopathy (CCM) show impaired respiratory function, including reduced vital capacity and altered expiratory flow rates. This suggests underlying subclinical respiratory dysfunction associated with CCM.

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Area of Science:

  • Neurology
  • Pulmonology
  • Spinal Cord Medicine

Background:

  • Acute cervical spinal cord injury frequently impairs respiratory function.
  • Respiratory changes in chronic cervical myelopathy (CCM) are not well-documented.

Purpose of the Study:

  • To evaluate the respiratory function in patients diagnosed with chronic cervical myelopathy (CCM).

Main Methods:

  • Spirometry was performed on 94 CCM patients before expansive laminoplasty.
  • CCM patients were compared to age- and sex-matched controls.
  • CCM patients were subgrouped by lesion level (above or below C3-4) for respiratory function comparison.

Main Results:

  • CCM patients exhibited significantly lower vital capacity compared to controls.

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  • Patients with compression above C3-4 had lower vital capacity than those with compression below C3-4.
  • Elevated resting respiratory rate, decreased peak expiratory flow, and altered expiratory velocities were observed in CCM patients.

    • Conclusions:

    • Expiratory flow may be impaired or incomplete in individuals with CCM.
    • CCM is associated with subclinical respiratory dysfunction.