Effect of cricothyroid Visor Maneuver on voice disorder

Comparing the effect of cricothyroid Visor Maneuver (CVM) and vocal facilitating techniques (VFTs) on voice improvement in muscle tension dysphonia: A pilot randomized controlled trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20210629051738N2

Enrollment

Registered

2021-10-11

Start date

2021-10-23

Completion date

Unknown

Last updated

2021-11-01

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

Conditions

Primary muscle tension dysphonia. Voice and resonance disorders

Interventions

Intervention 1: Intervention group will receive cricothyroid visor maneuver and hygienic voice therapy for half an hour two times a week for 5 sessions. Intervention 2: Control group will receive tra

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: Primary muscle tension dysphonia Age range of 18-60 years old

Exclusion criteria

Exclusion criteria: Obvious physical, neurological or psychological problems Endocrinal problems, lung infection or having cold since last month Allergy Menopause

Design outcomes

Primary

Measure	Time frame
Voice acoustic measurements. Timepoint: Pre and post intervention. Method of measurement: PRAAT software version 6.1.30.;Qualitative analysis of voice. Timepoint: Pre and post intervention. Method of measurement: Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V).	—

Secondary

Measure	Time frame
Voice handicap. Timepoint: Pre and post intervention. Method of measurement: voice handicap index(VHI).;Activity and participation. Timepoint: Pre and post intervention. Method of measurement: Voice Activity Participation Profile(VAPP).;Pain. Timepoint: Pre and post intervention. Method of measurement: Voice-Related Pain Scale(VRPS).;Vocal tract discomfort. Timepoint: Pre and post intervention. Method of measurement: Vocal Tract Discomfort Scale(VTDS).	—

Measure

Time frame

Voice handicap. Timepoint: Pre and post intervention. Method of measurement: voice handicap index(VHI).;Activity and participation. Timepoint: Pre and post intervention. Method of measurement: Voice Activity Participation Profile(VAPP).;Pain. Timepoint: Pre and post intervention. Method of measurement: Voice-Related Pain Scale(VRPS).;Vocal tract discomfort. Timepoint: Pre and post intervention. Method of measurement: Vocal Tract Discomfort Scale(VTDS).

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMaryam Mokhlesin

Semnan University of Medical Sciences

m_mokhlessin@yahoo.com+98 23 3365 4180

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026