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EBP Compendium: Summary of Systematic Review

Effects of Voice Therapy: A Systematic Review

Speyer, R. (2008).
Journal of Voice, 22(5), 565-580.

Indicators of Review Quality:

The review addresses a clearly focused question No
Criteria for inclusion of studies are provided Yes
Search strategy is described in sufficient detail for replication Yes
Included studies are assessed for study quality Yes
Quality assessments are reproducible No

Description: This is a systematic review of studies (including at least 5 subjects) investigating the effect of non-pharmacological, non-surgical voice therapy provided by speech-language pathologists for individuals with voice disorders.

Question(s) Addressed:

Question not specifically stated.

Population: Patients with functional dysphonia, organic dysphonia, or mixed functional and organic dysphonia.

Intervention/Assessment: Voice therapy.

Number of Studies Included: 47

Years Included: Through February 2006



"When trying to answer the question whether voice therapy in general is effective, one may conclude that no single answer can be given to that question, because of the diversity in phoniatric diagnoses, subject's personalities, voice therapies, as well as voice assessment instruments." (p.578)

Keywords: Vocal Fold Disorder, Voice Disorders

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Added to Compendium: December 2011

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