Effectiveness of CO2 laser and Microdermabrasion in patients with acne scars.

Anupama, Y G (2010) Effectiveness of CO2 laser and Microdermabrasion in patients with acne scars. Masters thesis, Madras Medical College, Chennai.


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INTRODUCTION : Acne is a common disorder affecting pilosebaceous units, clinically characterized by the presence of comedones, inflammatory papules, pustules and some nodules and cysts arising during adolescence. It is one of the most common causes of facial scarring. Post-acne facial scarring is a psychologically devastating condition and the affected patient invariably suffers from low self-esteem and many other psychological ill-effects. Facial scarring has always been a challenge to treat and there are different treatment options for the management of these scars. Facial atrophic scars can be safely and effectively resurfaced through the proper use of a high-energy, pulsed or scanned carbon dioxide (CO2) lasers. These laser systems emit high energy densities within extremely short pulses that effect tissue vaporization with limited thermal conduction to non-targeted surrounding skin. Since each laser ass effects a predictable and reproducible amount of tissue vaporization and residual thermal damage, as much or as little tissue can be removed as required by the type of scar being treated. Immediate collagen shrinkage, later with subsequent collagen remodeling develops, which accounts for the clinical benefits following resurfacing. Microdermabrasion is a superficial, office-based, minimally invasive technique of mechanical abrasion of the skin using a pressurized stream of particles such as aluminum oxide crystals. It may also be performed with a disposable or reusable diamond tip. There is superficial wounding of the skin, followed by epithelialization, stimulation of epidermal cell turnover and it also cause stimulation and remodeling of dermal collagen. It is mainly indicated for the treatment of superficial acne scars and is ineffective for deeper scars. This study attempts to find the therapeutic response to CO2 laser treatment and microdermabrasion in patients with acne scars. AIM OF THE STUDY : The aim is to study the effectiveness and side effects of CO2 laser and microdermabrasion in patients with atrophic acne scars of the face after grading them using Goodman and Baron’s grading system . CONCLUSIONS : * CO2 laser is a highly versatile laser and is useful for treating acne scars. * CO2 laser showed excellent response in grade 2 and 3 acne scars. * CO2 is not effective for ice pick scars and severe boxcar scars. * CO2 laser with ultra-pulse mode showed minimal side effects. * Subcision prior to the CO2 laser procedure showed better improvement when compared to CO2 laser alone in patients with rolling acne scars. * Microdermabrasion showed good response in grade 2 and 3 scars. * Side effects due to microdermabrasion procedure were transient. * Statistically there is a significant difference between the CO2 laser and Microdermabrasion at 5% level (P < 0.05). * Treatment of post acne scars requires multiple therapeutic modalities as single modality alone is not hundred percent effective.

Item Type: Thesis (Masters)
Uncontrolled Keywords: CO2 laser ; Microdermabrasion ; acne scars.
Subjects: MEDICAL > Dermatology Venereology and Leprosy
Depositing User: Subramani R
Date Deposited: 05 Jul 2017 04:26
Last Modified: 05 Jul 2017 08:58
URI: http://repository-tnmgrmu.ac.in/id/eprint/973

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