Pursed Lips Inspiration for Vocal Cord Dysfunction

DOI Web Site 2 Citations 13 References
  • Maruyama Yumiko
    Departments of Otolaryngology-Head and Neck Surgery, Kurobe City Hospital
  • Tsukada Yayoi
    Departments of Otolaryngology-Head and Neck Surgery, Kurobe City Hospital
  • Hirai Nobuyuki
    Department of Otolaryngology-Head and Neck Surgery, Division of Neuroscience, Kanazawa University Graduate School of Medical Science
  • Nakanishi Yosuke
    Department of Otolaryngology-Head and Neck Surgery, Division of Neuroscience, Kanazawa University Graduate School of Medical Science
  • Yoshizaki Tomokazu
    Department of Otolaryngology-Head and Neck Surgery, Division of Neuroscience, Kanazawa University Graduate School of Medical Science

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Other Title
  • Vocal cord dysfunction に対する口すぼめ吸気法
  • 手技・工夫 Vocal cord dysfunctionに対する口すぼめ吸気法
  • シュギ ・ クフウ Vocal cord dysfunction ニ タイスル クチスボメ キュウキホウ

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Abstract

Paradoxical vocal cord motion (PVCM) during vocal cord dysfunction (VCD) generally occurs spasmodically and transiently. After we had experienced 36 cases of VCD and successfully treated with conservative treatment including “pursed lips inspiration” method, we experienced a boy who had persistent PVCM. It was observed his PVCM vanished when he breathed in through pursed lips, while it appeared again when he stopped pursed lips inspiration. An airway reflex has been reported where the negative pressure in the subglottic space resulting from the inspiratory effort against a narrowed glottis activates the vocal cord adductor. VCD is considered to have both acceleration of laryngeal closure reflex against airway stimuli and active adductive movement of vocal cords against negative pressure in the subglottic space as underlying factors. The pursed lips inspiration method enables VCD patients not only to accomplish slow and light breathing but also to decrease the difference in the pressure between the supra-and subglottic space by occluding the nasal cavity and voluntary puckering up of the mouth which generate negative pressure in the supraglottic space. This is the first report of the pursed lips inspiration method as a treatment for VCD. Pursed lips inspiration is a simple method which is easy to perform anytime, anywhere without any special equipment, and is considered to be worth trying for VCD.

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