Examination of the efficacy and the safety in thyroplasty type 2 with titanium bridge for patients with adductor spasmodic dysphonia

Examination of the efficacy and the safety in thyroplasty type 2 with titanium bridge for patients with adductor spasmodic dysphonia - Thyroplasty type 2 with titanium bridge

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000010956

Enrollment

Registered

2013-06-17

Start date

2013-06-17

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

adductor spasmodic dysphonia

Interventions

titanium bridge

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: patients with adductor spasmodic dysphonia who cannot get the improvement by conservative treatment, such as voice therapy

Exclusion criteria

Exclusion criteria: inoperable patients

Design outcomes

Primary

Measure	Time frame
Voice Handicap Index (VHI)	—

Secondary

Measure	Time frame
laryngeal inspection, subjective symptoms, mora, GRBAS, vocal parameters of acoustic and aerodynamic measurements, voice related QOL (VRQOL), postoperative complications	—

Countries

Japan

Contacts

Public ContactDaisuke Sano

Yokohama City University School of Medicine Department of Otorhinolaryngology, Head and Neck Surgery

dsano@yokohama-cu.ac.jp045-787-2687

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026