Document Detail

Safe and effective one-session fractional skin resurfacing using a carbon dioxide laser device in super-pulse mode: a clinical and histologic study.
MedLine Citation:
PMID:  20814788     Owner:  NLM     Status:  In-Data-Review    
Carbon dioxide (CO(2)) laser ablative fractional resurfacing produces skin damage, with removal of the epidermis and variable portions of the dermis as well as associated residual heating, resulting in new collagen formation and skin tightening. The nonresurfaced epidermis helps tissue to heal rapidly, with short-term postoperative erythema. The results for 40 patients (8 men and 32 women) after a single session of a fractional CO(2) resurfacing mode were studied. The treatments included resurfacing of the full face, periocular upper lip, and residual acne scars. The patients had skin prototypes 2 to 4 and wrinkle degrees 1 to 3. The histologic effects, efficacy, and treatment safety in various clinical conditions and for different phototypes are discussed. The CO(2) laser for fractional treatment is used in super-pulse mode. The beam is split by a lens into several microbeams, and super-pulse repetition is limited by the pulse width. The laser needs a power adaptation to meet the set fluence per microbeam. Laser pulsing can operate repeatedly on the same spot or be moved randomly over the skin, using several passes to achieve a desired residual thermal effect. Low, medium, and high settings are preprogrammed in the device, and they indicate the strength of resurfacing. A single treatment was given with the patient under topical anesthesia. However, the anesthesia was injected on areas of scar tissue. Medium settings (2 Hz, 30 W, 60 mJ) were used, and two passes were made for dark skins and degree 1 wrinkles. High settings (2 Hz, 60 W, 120 mJ) were used, and three passes were made for degree 3 wrinkles and scar tissue. Postoperatively, resurfaced areas were treated with an ointment of gentamycin, Retinol Palmitate, and DL-methionine (Novartis; Farmaceutics, S.A., Barcelona, Spain). Once epithelialization was achieved, antipigment and sun protection agents were recommended. Evaluations were performed 15 days and 2 months after treatment by both patients and clinicians. Treatment improved wrinkle aspect and scar condition, and no patient reported adverse effects or complications, irrespective of skin type, except for plaques of erythema in areas that received extra laser passes, which were not seen at the 2-month assessment. The results evaluated by clinicians were very much in correlation with those of patients. Immediately after treatment, vaporization was produced by stacked pulses, with clear ablation and collateral heat coagulation. An increased number of random pulses removed more epidermis, and with denser pulses per area, a thermal deposit was noted histologically. At 2 months, a thicker, multicelluar epidermis and an evident increase in collagen were observed. Fractional CO(2) laser permits a variety of resurfacing settings that obtain safe, effective skin rejuvenation and correct scar tissue in a single treatment.
Mario A Trelles; Michael Shohat; Fernando Urdiales
Related Documents :
12614418 - Laser-assisted hair removal in asian skin: efficacy, complications, and the effect of s...
1350138 - The in vivo effect of uvb radiation on skin bacteria in patients with atopic dermatitis.
11722448 - Successful dexamethasone pulse therapy in a toxic epidermal necrolysis (ten) patient fe...
11226988 - Surgical correction of buried penis: a review of 60 cases.
20542908 - A rifampicin-containing antibiotic treatment improves outcome of staphylococcal deep st...
24579438 - Impact of frailty scores on outcome of octogenarian patients undergoing transcatheter a...
Publication Detail:
Type:  Journal Article     Date:  2010-07-26
Journal Detail:
Title:  Aesthetic plastic surgery     Volume:  35     ISSN:  1432-5241     ISO Abbreviation:  Aesthetic Plast Surg     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7701756     Medline TA:  Aesthetic Plast Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  31-42     Citation Subset:  IM    
Instituto Médico Vilafortuny, Fundación Antoni de Gimbernat, Av. Vilafortuny, 31, E43850, Cambrils, Tarragona, Spain,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  In vivo precision of a depth-specific topographic mapping technique in the CT analysis of osteoarthr...
Next Document:  The small-molecule tyrosine kinase inhibitor nilotinib is a potent noncompetitive inhibitor of the S...