Carbon dioxide dot matrix laser is not the gold standard for the treatment of acne scars

Acne is one of the most common skin diseases. Although many people try to get rid of acne, they still inevitably leave acne scars. When acne scar is more obvious, especially in the face, it has a lot of impact on the patient’s life and work.

How to effectively remove acne scars? At the 2019 academic annual meeting of medical cosmetology / plastic surgery of Guangdong Medical Association, Dr. Gao Kai of plastic and cosmetic surgery of Nanfang Hospital of Southern Medical University summarized a variety of methods to “deal with” acne scars, and pointed out that carbon dioxide dot matrix laser is not the gold standard for the treatment of acne scars, and symptomatic typing and comprehensive treatment of acne scars are more effective.

Dr. Gao Kai

When it comes to acne scars, many people can’t help asking: why is it the same acne? Some people have smooth skin after acne, while others have left a “pothole” on their face. Gao Kai explained that this is related to the formation mechanism of acne scars. “Inflammation is the culprit of acne scars. The severity and depth of inflammation determine the number, type and depth of acne scars.” In short, people who are keen to squeeze acne are more likely to cause inflammation and leave acne scars.

Gao Kai pointed out that in the past, in the treatment of acne scars, carbon dioxide dot matrix laser was considered as the gold standard for the treatment of acne scars. In fact, there are many methods to treat acne scars. In addition to strong pulsed light, radio frequency, ion beam and laser in photoelectric therapy, it also includes local drug treatment, chemical stripping, cross technology, subcutaneous separation, mechanical dermabrasion and injection filling. For different types of acne scars, different treatment methods should be selected, and the comprehensive treatment effect is better.

Although acne scars look similar, they can be divided into many types according to morphology, such as patch scar, concave scar and uplift scar. Concave scars can also be divided into ice cone type, carriage type, roller type, linear type and fat atrophy type. Gao Kai has his own opinions on the treatment of different types of acne scars:

Ice cone scar: cross technology or carbon dioxide dot matrix laser is preferred. Subcutaneous separation, perforated resection or laser epidermal reconstruction can be used as adjuvant treatment;

Car type scar: laser grinding is the first choice for shallow car, subcutaneous separation combined with dot matrix laser or microneedle, and subcutaneous separation combined with laser grinding is the first choice for deep car;

Roller scar: subcutaneous separation and filling, and then dot matrix laser reshaping the surface;

Linear and fat atrophic scar: select dot matrix laser after subcutaneous separation for narrow linear scar, fill after subcutaneous separation for wide linear scar and fat atrophic scar, and then dot matrix laser;

Papular scar: radiofrequency ablation or steroid hormone injection;

Keloid, hypertrophic scar and bridging scar: steroid hormone injection combined with dot matrix laser or radiotherapy.