Management of Non-Organic Dysphonia in Adults.

March 2, 2025 updated by: Shereen Mohamed Hamed, Sohag University

Resonance Tube Voice Therapy Versus Smith Accent Therapy in The Management of Non-Organic Dysphonia in Adults

The purpose of this study is to determine the effect of a semi-occluded vocal tract training program, "Resonant Tube Therapy," versus the "Traditional Smith-accent Method" on the quality of voice in patients with Non-Organic "Functional" dysphonia.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Sohag, Egypt
        • Recruiting
        • Faculty of medicine Sohag University
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Patients diagnosed with non-organic functional dysphonia with or without Minimally Associated Pathological lesions and referred for voice therapy. The diagnosis was based on the results of the routine clinical assessment of cases of voice disorders by a phoniatrician in the voice clinic.
  • Patients 'ages between 15 - 60 years old.
  • Native speakers of Arabic.
  • Language comprehension adequate for the task.

Exclusion Criteria:

  • Patients with organic voice disorders.
  • Patients with aphonia or Phon asthenia.
  • Females within the week of their menstrual cycle or menstruating at the time of data collection to control for the possible hormonal effects or premenstrual water retention on voice quality.
  • History of severe respiratory allergies, thyroid pathologies, neuro-motor impairment, hearing impairment, psychiatric problems and physically limiting diseases that might interfere with study completion.
  • Those on any regular medication that might affect voice quality.
  • Speech disorders.
  • Cigarette smoking, alcohol, or drug abuse for the past 5 years.
  • Patients with previous micro laryngeal surgery.
  • Patients with gastrointestinal reflux disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Non-organic (Functional) dysphonia patients will receive Smith Accent Voice Therapy

The patient was advised to vocal hygiene and to correct the faulty vocal technique by a-diaphragmatic breathing in the sitting position by Using the newly acquired diaphragmatic breathing, the patient is allowed to "sing" the various vowels (/a/, /i/, and /u/), "the largo with one accentuation, the andante with three accentuations, and the fastest, allegro, with five accentuations". b-Body and arm movements during dynamic vowel exercises.

Transfer and carry over to connected speech by (the gradual stage-wise transformation from vowel play to connected speech, repeating short phrases after the therapist, reading short phrases with pauses, monologue with short phrases with suitable pauses, dialogue, applying the same pattern)

Active Comparator: Non-organic (Functional) dysphonia patients will receive Resonance Tube Voice Therapy
The patient sits comfortably with their back straight, holding the tube between their thumb and index fingers, maintaining 1 mm between their teeth, and ensuring no air leak between their lips and the tube. A 1-liter wide plastic container is used, filled with water, with the free end of the tube submerged 2 cm below the water's surface. The patient is instructed to take enough time to relax their respiratory muscles and phonate into the tube to create air bubbles on the water's surface, starting with monotonous words and progressing to different intonations. There are 2-minute rest periods between exercises, and the patient should drink water to prevent dryness. Sessions occur in the clinic until the patient can perform the exercises independently without effort, after which the pathologist may allow practice at home. The patient receives written instructions to practice 10 times daily for 2 minutes each, with 1 hour between practices for 6 weeks.
Resonance Tube of 28 cm in length and 9 mm diameter for adults will be submerged into a bowl of water .Both flexible soft walled tubes,glass tubes or straws can be used
Other Names:
  • Smith Accent Voice Exercises

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Voice quality improvement in functional (non-organic) dysphonia adult patients
Time Frame: 12 weeks following end of the treatment
Patient evaluation will be conducted before and after the voice therapy sessions for the two groups by Voice Handicap Index (VHI).
12 weeks following end of the treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

March 1, 2025

Primary Completion (Estimated)

August 1, 2025

Study Completion (Estimated)

September 1, 2025

Study Registration Dates

First Submitted

February 23, 2025

First Submitted That Met QC Criteria

March 2, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

March 2, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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