Impact of Voice Therapy on Vocal Fold Nodules with Long-Term Symptoms before Therapeutic Intervention

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  • Mato Shogo
    Department of Rehabilitation, Kyorin University Hospital Obirin University Graduate School of Gerontology
  • Miyamoto Makoto
    Department of Otolaryngology-Head and Neck Surgery, Kyorin University School of Medicine
  • Watanabe Itaru
    Department of Otolaryngology-Head and Neck Surgery, Kyorin University School of Medicine
  • Mogi Mami
    Department of Otolaryngology-Head and Neck Surgery, Kyorin University School of Medicine
  • Nakagawa Hideki
    Department of Otolaryngology-Head and Neck Surgery, Kyorin University School of Medicine Department of Otolaryngology, Seibo International Catholic Hospital
  • Saito Koichiro
    Department of Otolaryngology-Head and Neck Surgery, Kyorin University School of Medicine

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  • 慢性化した声帯結節に対する音声治療の効果

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Abstract

<p>This study investigated the impact of voice therapy on vocal fold nodules with long-term symptoms before therapeutic intervention. Ten patients who underwent voice therapy for vocal fold nodules with over 6 months of symptomatic durations were incorporated. All patients were female, and the mean symptomatic duration was 28.3±20.6 months. Vocal hygiene instruction, laryngeal manual therapy, semi-occluded vocal tract exercises, and Vocal Function Exercises were utilized as the therapeutic options of voice therapy. Significant improvements in maximum phonation time, jitter, shimmer, and Voice Handicap Index (VHI) were observed after voice therapy. Furthermore, disappearance or size reduction of the nodal lesions was observed in 70% of the patients after voice therapy. In those patients with less than 36 months of symptomatic durations before voice therapy, improvements in lesion size were observed in 87% of the patients, and VHI improvement was observed even in the patients whose nodules did not show any change in size. Two patients required surgical intervention after voice therapy; however, most vocal parameters showed improvements after voice therapy even in these patients. Additionally, both patients were young, and experienced transient deterioration of their voice due to their occupational vocal abuse during voice therapy. Our study supported the idea that voice therapy could achieve satisfactory improvement of vocal functions even in patients with long-term symptoms before therapeutic intervention. </p>

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