Abductor Paresis in Shy-Drager Disease

  • Eiji Isozaki
Part of the Current Clinical Neurology book series (CCNEU)


Patient 1: A 55-year-old woman was admitted to our hospital because of progressive parkinsonism. She was diagnosed with striatonigral degeneration. Because of nocturnal snoring, a fiberoptic laryngoscopy was performed during wakefulness, showing a mild abduction restriction of the vocal cords. Arterial blood gas analysis was normal. Over the next year, she developed inspiratory stridor during wakefulness, especially while talking. A second fiberoptic laryngoscopy during wakefulness showed a narrower glottic aperture as compared with the previous examination. Arterial blood gas analysis showed only mild hypoxemia: pH = 7.44, pCO2 = 43 Torr, PO2 = 72 Torr. At this point, she had no dyspnea and could still speak and eat. Only 3 weeks after admission, she was found in a cardiopulmonary arrest in her bed at 8 pm, only 15 minutes after she was heard snoring as usual.


Obstructive Sleep Apnea Continuous Positive Airway Pressure Vocal Cord Multiple System Atrophy Vocal Cord Paralysis 
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Copyright information

© Humana Press Inc. 2005

Authors and Affiliations

  • Eiji Isozaki
    • 1
  1. 1.Department of NeurologyTokyo Metropolitan Neurological HospitalTokyoJapan

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