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Comparing interventions for selective mutism: a pilot study.

Katharina Manassis¹, Rosemary Tannock

¹Hospital for Sick Children, Toronto, Ontario. katharina.manassis@sickkids.ca

Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie

|October 23, 2008

Summary

Selective serotonin reuptake inhibitors (SSRI) may benefit children with severe selective mutism (SM), showing greater improvement than unmedicated peers. Nonmedical interventions did not show significant differences in outcomes.

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Area of Science:

Child and Adolescent Psychiatry
Clinical Psychology
Developmental Psychology

Background:

Selective mutism (SM) is an anxiety disorder characterized by a child's inability to speak in specific social situations.
Severe SM can significantly impair a child's social and academic functioning.
Understanding treatment outcomes is crucial for guiding clinical practice.

Purpose of the Study:

To evaluate the 6- to 8-month outcomes of medical and nonmedical interventions for children diagnosed with severe selective mutism.
To assess the impact of selective serotonin reuptake inhibitors (SSRI) and nonmedical interventions on SM symptoms and functioning.

Main Methods:

A follow-up study of 17 children with SM and their mothers.
Data collected via maternal report and independent clinician ratings.

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Assessed treatment received, current diagnosis, speech in various environments, and global functioning.

Main Results:

SM diagnosis persisted in 16 children, but significant symptomatic improvement was observed.
Children treated with SSRIs (n=10) demonstrated greater global improvement, functional enhancement, and improved speech outside the family compared to unmedicated children (n=7).
No significant differences were found for children receiving additional nonmedical interventions.

Conclusions:

SSRI treatment shows potential benefits for children with severe SM.
Further randomized controlled trials are needed to confirm these findings and compare treatment efficacy.
This study highlights the importance of considering pharmacotherapy in managing severe SM.