Effect of Pulse Width on Scar Treatment Using a 595-nm Pulsed Dye Laser

Inclusion Criteria:

• Healthy, adult subjects aged above 18.
• Subjects must be in good health as determined by the investigator.
• Presence of keloidal and hypertrophic sternotomy scars for at least 6 months
• Subjects must have no prior treatment of the scar within 1 month before the first treatment session.
• Subject or authorized representative must sign Informed Consent Form prior to study enrollment.

Exclusion Criteria:

• Female subjects known to be pregnant.
• Subjects with scleroderma, connective tissue disorders, hematologic disorders, hepatitis, infection, or uncontrolled diabetes mellitus.
• Subjects with photosensitive dermatoses such as Systemic Lupus Erythematosus (SLE)
• Subjects with a documented positive HIV test.
• Subjects who are on any types of anticoagulants.
• Subjects who are habitual smokers of cigars, pipe tobacco, or cigarettes.
• Subjects with history of radiation treatment at treatment sites.
• Subjects who use of any types of treatment of scars at the treatment site within one month before the first treatment visit.
• Subjects who are on medication that may interfere with wound healing or hemostasis.
• Subjects that have not signed the Informed Consent Form.