Safety and Efficacy of Different Intervals of Pulsed Dye Laser Sessions on Improvement of Surgical Scars

Scar Clinical Trial

Official title:

The Effect of Different Intervals of 595-nm Pulsed Dye Laser Sessions on Improvement of Surgical Scars: A Double Blind Randomised Clinical Trial

Clinical Trial Details — Status: Withdrawn

Administrative data

• NCT number: NCT00506090
• Other study ID #: 423/2224-A
• Status: Withdrawn
• Phase: N/A
• First received: July 23, 2007
• Last updated: October 4, 2009
• Start date: July 2007

Study information

• Verified date: October 2009
• Source: Tehran University of Medical Sciences
• Contact: n/a
• Is FDA regulated: No
• Health authority: Iran: Ministry of Health
• Study type: Interventional

Clinical Trial Summary

The appearance of skin after surgery plays an important role in patient's self confidence and life style. In fact, Keloids and hypertrophic scars are abnormal wound responses appearing in predisposed individuals after surgery. Among different kind of lasers, used to improve the appearance of hypertrophic scars and keloids, pulsed dye laser is now being used successfully in treatment of scars. Pulsed dye laser is effective in improving the color, height, texture, and elasticity of scars. Also, treatment with this technique is noninvasive, minimally uncomfortable, and requires no anesthesia. This study will assess the efficacy and safety of different intervals of pulsed dye laser sessions on improvement of surgical scars.

Recruitment information / eligibility

• Status: Withdrawn
• Enrollment: 0
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years to 80 Years

Eligibility

Inclusion Criteria:

• Surgical scar with minimum length of 6 cm

Exclusion Criteria:

• History of light sensitivity or photodermatoses

• History of adverse reactions to laser treatment

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

• Scar

Intervention

Procedure:
• pulsed dye laser therapy
Treatment will begin on the day of suture removal. Each scar will be divided into 3 equal parts. One part will be randomly allocated to be treated with pulsed dye laser and dynamic cooling device at 3 weeks intervals for 6 sessions. Another part will be treated with pulsed dye laser and dynamic cooling device at 6 weeks intervals for 6 sessions. Only dynamic cooling device will be used for remaining part serving as control.

Locations

Country	Name	City	State
Iran, Islamic Republic of	Center for research and training in skin diseases and leprosy	Tehran

Sponsors (1)

Lead Sponsor	Collaborator
Tehran University of Medical Sciences

Country where clinical trial is conducted

Iran, Islamic Republic of, 

References & Publications (6)

Alam M, Pon K, Van Laborde S, Kaminer MS, Arndt KA, Dover JS. Clinical effect of a single pulsed dye laser treatment of fresh surgical scars: randomized controlled trial. Dermatol Surg. 2006 Jan;32(1):21-5. — View Citation

Alster TS, Williams CM. Treatment of keloid sternotomy scars with 585 nm flashlamp-pumped pulsed-dye laser. Lancet. 1995 May 13;345(8959):1198-200. — View Citation

Conologue TD, Norwood C. Treatment of surgical scars with the cryogen-cooled 595 nm pulsed dye laser starting on the day of suture removal. Dermatol Surg. 2006 Jan;32(1):13-20. — View Citation

Manuskiatti W, Wanitphakdeedecha R, Fitzpatrick RE. Effect of pulse width of a 595-nm flashlamp-pumped pulsed dye laser on the treatment response of keloidal and hypertrophic sternotomy scars. Dermatol Surg. 2007 Feb;33(2):152-61. — View Citation

Nouri K, Jimenez GP, Harrison-Balestra C, Elgart GW. 585-nm pulsed dye laser in the treatment of surgical scars starting on the suture removal day. Dermatol Surg. 2003 Jan;29(1):65-73; discussion 73. — View Citation

Paquet P, Hermanns JF, Piérard GE. Effect of the 585 nm flashlamp-pumped pulsed dye laser for the treatment of keloids. Dermatol Surg. 2001 Feb;27(2):171-4. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	pigmentation, pliability, width and height of surgical scars		baseline, middle of the study, 1 and 3 months after the last treatment session	No
Secondary	1- Clinical appearance of surgical scars 2- Patient's satisfaction (scar erythema, scar thickness and scar induration) 3- Adverse events		1 and 3 months after the last treatment session	Yes