Efficacy of Botulinum Toxin in Facial Emotion Recognition

changing facial emotion recognition before and after cosmetic botulinum toxin type A injection

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20150410021677N3

Enrollment

Registered

2018-02-06

Start date

2018-02-05

Completion date

Unknown

Last updated

2018-03-26

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

Conditions

Disorder of the skin and subcutaneous tissue, unspecified. Disorder of the skin and subcutaneous tissue, unspecified

Interventions

Intervention group:patients with frown lines in forehead area. 500 unit of botulinum toxin type A(Dysport,Epsen,UK)dissolve in 0.9%injectable NACL solution and inject 20Unit to the procerus muscle,35

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: first time of botulinum toxin injection age above 18 years presence of frown lines in forehead

Exclusion criteria

Exclusion criteria: allergy to botulinum toxin pregnancy history of facial trauma history of surgery in forehead area of face history of dementia and psychiatric disorder visual and speech abnormalities

Design outcomes

Primary

Measure	Time frame
Incidence frown line in forehad. Timepoint: before intervention and 2 weeks after injection botulinum. Method of measurement: visual evaluation.	—

Secondary

Measure	Time frame
Evaluation of emotion recognition. Timepoint: before intervention, 8 after intervention. Method of measurement: multi modal emotion recognition test (MERT).	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactKaveh shafiei

Kerman University of Medical Sciences

amirsherafat@mail.com+98 34 3212 4727

Outcome results

None listed

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