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Effect of Cold Air Cooling on the Incidence of Post Inflammatory Hyperpigmentation Following Laser Treatment

Not Applicable
Completed
Conditions
Nevus
Hyperpigmentation
Interventions
Device: Cold air cooling
Registration Number
NCT00287001
Lead Sponsor
Mahidol University
Brief Summary

- To investigate the benefit of epidermal cooling on the incidence of post inflammatory hyperpigmentation after laser irradiation

Detailed Description

* 70% incidence of post inflammatory hyperpigmentation has been reported following a Q-switched nd:YAG laser treatment of acquired bilateral nevus of Ota-like macules.

* We assumed that epidermal cooling may minimize the non-specific injury to the epidermis caused during laser irradiation, leading to the decreased incidence of post inflammatory hyperpigmentation.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
20
Inclusion Criteria
  • Subjects with acquired bilateral nevus of Ota-like macules.
  • At least 18 years old
  • No previous treatment on the condition for a minimum period of 1 month.
Exclusion Criteria
  • Subjects diagnosed of scleroderma, connective tissue disorders, hematologic disorders, hepatitis, infection, or uncontrolled DM
  • History of keloid and/or hypertrophic scar.
  • Currently on anti-coagulant

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
1Cold air cooling1= cool air cooling
Primary Outcome Measures
NameTimeMethod
Incidence of post inflammatory hyperpigmentation2 weeks
Secondary Outcome Measures
NameTimeMethod
Side effects of cold air cooling and clearing rate of pigmented lesion12 weeks

Trial Locations

Locations (1)

Department of Dermatology, Siriraj Hospital, Mahidol University

🇹🇭

Bangkok, Thailand

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