• General Information

Effects of laser on subdermal fat tissue

Alberto Goldman, Md, Diego Schavelzon, Md, Guillermo S. Blugerman,Md Lipoaspiration with Nd:YAG Laser, Revista Sociedad Brasileña da Laser 2 (5) 15

This technique aims at eliminating the localised adipocytes without the need for fat aspiration as it is destroyed inside the tissue according to the specific effects of these lasers.

Nd:YAG laser has a wavelength that produces thermal and mechanical effect on the fat tissue (through very short pulses) that causes the rupture of the adipose cell membranes and transforms them into an oily emulsion that is then absorbed naturally.

Laser lipolysis is a technique with stable results that not only destroys the fat but also the “package” where it accumulates. Since the organism does not have the ability the produce new cells of this type, the treated area cannot re-expand. If the person gains weight after the procedure, the excess fat is redistributed to other areas and no selectively to the "problem areas" as occurred before. Adipose cells do not regenerate in the places where the laser has passed.

The preferred areas for laser lipolysis application are those affected by fat tissue accumulation with subtle volume and accompanied by a lack of skin tone.

The heating effect on the intralobular fibrous tracts and the dermis leads to a concomitant skin contraction that aids in adequate skin retraction after the area has been emptied of fat content as well as preventing laxity.

• Deka laser is used at 6 W at a frequency of 40 Hz, 150 mjoules/pulse, that is, 6 joules/second.

• Light tumescent infiltration and anaesthetic treatment is performed, with a full power deposit of 2,000 to 12,000 joules, according to the total surface and thickness treated. For the delivery of 2,000 joules, the device requires 5 minutes and 30 minutes for 12,000 joules.

• Its efficacy is based on photo acoustic, photomechanical and photo thermal effects.