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to control tumescent anesthesia infiltration, cannula position prior to laser emission,and postoperative fat liquefaction.Five hundred thirty-four (534) laser lipolysis procedures were performed on 334 patients. Different areas were treated: hips (197), inner thighs (86), abdomen (86), knees (61), flanks (57), buttocks (28), chin (22), arms (18), back (4). Mean cumulative energy was area-dependent, ranging from a minimum of 2200 J (knee) to a maximum of 51,000 J (abdomen). Contour correction and skin (...) Lipolysis Using a 980-nm Diode Laser: A Retrospective Analysis of 534 Procedures The safety and efficacy of the 980-nm diode laser for laser lipolysis were evaluated in different body areas.From June 2005 to June 2007, 334 subjects underwent laser lipolysis. The treatment was performed using a 980-nm diode laser (OSYRIS, Hellemmes, France). After tumescent anesthesia, a 1-mm-diameter microcannula housing a 600-mum optical fiber was inserted into the subcutaneous fat. The cannula was moved back
Reticulate erythema following diode laser-assisted hair removal: a new side effect of a common procedure. The popularity of laser-assisted hair removal has grown rapidly since April 3, 1995 when the Food and Drug Administration approved the introduction of the first hair removal laser system. Lasers with wavelengths in the red and infrared portion of the electromagnetic spectrum are most often used for hair removal because they effectively target melanin in the hair follicle and can potentially (...) penetrate to the appropriate depth of the dermis. Despite all efforts to protect the skin from damage, photoepilation may result in clinically significant adverse reactions. The most common and known side effects of laser hair removal include transient erythema, perifollicular edema, pain, folliculitis, hyper-pigmentation, hypopigmentation, crusting, purpura, erosions and scarring. The present report describes the appearance of a reticulate erythema after diode laser treatment for hair removal
the procedure. The presence of four microorganisms (staphylococci, streptococci, diphtheroids, and yeasts) was evaluated as a microbe index for the skin flora, and colony counts were obtained using standard microbiological methods.Skin biopsy specimens, following CO2 laser treatment, initially showed epidermal and papillary dermal necrosis and later a re-epithelization of the epidermis as well as the generation of new collagen on the upper papillary dermis. The reduction in microbial counts on day 1 (...) In vivo effect of carbon dioxide laser-skin resurfacing and mechanical abrasion on the skin's microbial flora in an animal model. Although beam-scanning carbon dioxide (CO2) lasers have provided a highly efficient tool for esthetic skin rejuvenation there has been no comprehensive animal studies looking into microbial skin changes following CO2 laserskin resurfacing.To evaluate the in vivo effects of CO2 laserskin resurfacing in an experimental rat model in comparison with mechanical abrasion
Combination surgical lifting with ablative laserskin resurfacing of facial skin: a retrospective analysis. Cutaneous aging is manifested by rhytides, dyschromias, and skin laxity. Ablative laserskin resurfacing can effectively improve many signs of skin aging; however, the photoaged patient with facial laxity often requires a surgical lifting procedure in order to obtain optimal results. Concerns with delayed or impaired wound healing has led to reluctance to perform both procedures (...) simultaneously.To report the clinical results and side effect profiles after concomitant surgical facial lifting procedures and ablative carbon dioxide or erbium:YAG laser resurfacing in a series of patients.A retrospective analysis and chart review was performed in 34 consecutive patients who underwent combination CO(2) or erbium:YAG laserskin resurfacing and surgical lifting procedures, including S-lift rhytidectomy, blepharoplasty, and brow lift. Side effects and complication rates were tabulated.The side
Laserskin testing. In order to accomplish more uniformity for standardization of allergy skin testing, a technique using a CO2 laser in place of a needle was developed. The dose of laser light was based on comparison of biopsies of punctures with Morrow-Brown Needles and varying combinations of laser energy parameters. The resulting laser settings were tested in twenty volunteers who had been referred for skin testing. Blinded tests were conducted with both procedures in parallel using (...) histamine, saline, Dermatophagoides pteronyssinus, and Lolium perenne. Comparable whealing reactions were produced by laserskin testing and puncture testing with a Morrow-Brown Needle. These results suggest several potential advantages of laserskin testing over the existing test.
Closed dressings after laserskin resurfacing. To evaluate the safety, efficacy, and patient acceptance of closed dressings after full facial resurfacing with the carbon dioxide laser.Prospective cohort of men and women undergoing full facial carbon dioxide laser resurfacing.Ambulatory surgical center at a university hospital.Forty consecutive patients randomized to 1 of 4 dressing groups.All patients underwent full facial resurfacing with a carbon dioxide laser system. One of 5 closed (...) dressings (single- or 3-layer composite foam, plastic mesh, hydrogel, or polymer film) was placed immediately after the procedure. Closed dressings were changed on postoperative day 2 and removed on postoperative day 4.Objective postoperative criteria of erythema, scarring, reepithelialization, and surface irregularities were recorded and photodocumented. Comparisons were made among the closed dressing groups as well as with a group of historical control subjects treated with open dressings. The ease
of the irradiation (P < 0.001), and 15 min after stopping the irradiation (P < 0.001). In the sham-irradiated feet, the drop in local skin temperature was not significant at 20 min (P = 0.1), but reached significance at the end of the sham-irradiation procedure (P < 0.001) and 15 min after the end of sham irradiation (P < 0.001).The data from this first randomized double-blind placebo-controlled clinical trial demonstrate an increase in skin microcirculation due to athermic laser irradiation in patients (...) Low-intensity laser irradiation improves skin circulation in patients with diabetic microangiopathy. Diabetic foot problems due to angiopathy and neuropathy account for 50% of all nontraumatic amputations and constitute a significant economic burden to society. Low-intensity laser irradiation has been shown to induce wound healing in conditions of reduced microcirculation. We investigated the influence of low-intensity laser irradiation by means of infrared thermography on skin blood
Prophylactic antibiotics in patients undergoing laser resurfacing of the skin. Carbon dioxide (CO2) laser resurfacing produces a superficial second-degree burn that needs to be protected from bacterial and fungal infections.We investigated the effects of various systemic and topical antimicrobial regimens.Four different regimens using oral ciprofloxacin, topical antibiotics (intranasal mupirocin ointment and otic solution), oral ketoconazole, and oral fluconazole were tested in four time (...) periods. The frequency and types of the infections with various regimens was compared.The study included 356 sequential patients who underwent facial CO2 laser resurfacing. Infections occurred in 27 patients (7.6%). Without antibiotic prophylaxis, 8.2% of patients had bacterial infections from days 3 to 12 after the procedure (average, day 5). With prophylactic ciprofloxacin only, 4.3% of patients had bacterial infections; these occurred almost exclusively after ciprofloxacin was discontinued. For 7
Skin irritation typing and grading based on laser Doppler perfusion imaging. Vasodilation with increased cutaneous perfusion is an essential part of an irritant inflammatory response. The aim of the present study was to investigate the usefulness of the high-resolution laser Doppler perfusion imaging (HR-LDPI) technique for investigating irritant skin reactions. Irritants may elicit clinically different reactions due to different skin penetration profiles and different modes of irritant action (...) and the area with increased flow. The individual irritants could be differentiated due to different time courses of their skin irritation.Laser Doppler imaging was found to be an important new method for characterization and grading of the inflammatory response of single exposure irritant reactions. However, standardised study procedures cannot be emphasised enough in order to obtain reliable and useful data.
Efficacy and safety of a topically applied AvÃ¨ne spring water spray in the healing of facial skin after laser resurfacing. Although laser resurfacing is a well-accepted treatment, tolerance problems may preclude patient's acceptance of the procedure. Post-laser protracted erythema is a prime problem, associated with the symptoms of pain, itching, stinging and tightening.The present study was conducted to evaluate a low-salt medical spring water (Avène, Avène-les-Bains, France), in conjunction
Combination visible and infrared lasers for skin rejuvenation. Noninvasive techniques for skin rejuvenation are quickly being established as a new standard in the treatment of mild rhytides and overall skin toning. Multiple laser wavelengths and modalities have been tried for this procedure with varying degrees of success. These lasers include 532 nm, 585 nm, 1064 nm, 1320 nm, 1450 nm, and 1540 nm wavelengths. This study evaluates a combination technique by using a long-pulsed 532 nm potassium (...) titanyl phosphate (KTP) laser and a long-pulsed 1064 nm Neodynium:yttrium aluminum garnet (Nd:YAG) laser, both separately and combined, for noninvasive photorejuvenation and skin toning/collagen enhancement, and establishes efficacy and degree of success. A total of 150 patients were treated with the long-pulsed KTP 532 nm (Aura; Laserscope, San Jose, CA) and long-pulsed Nd:YAG 1064 nm (Lyra; Laserscope) lasers both separately and combined. Patients included skin types I through V. The fluences varied
Efficacy of the flashlamp-pumped pulsed-dye laser in nonsurgical delay of skin flaps. The purpose of this article was to determine the effectiveness of laser delay by use of the flashlamp-pumped pulsed-dye laser operating at a wavelength of 585 nm; to elucidate the comparable or dissimilar macroscopic, microscopic, and hemodynamic changes between laser and surgical delay methods; and to clarify the possible mechanisms underlying the delay effect of laser.A standardized caudally based random (...) dorsal rat flap model was used in this study: Acute random skin flaps served as control subjects (group 1). Surgical delay was employed by incision of lateral longitudinal borders both without (group 2) and with (group 3) undermining, and laser delay methods were performed by laser irradiation of both lateral longitudinal borders (group 4) and the entire surface (group 5) of the proposed flap. Evaluation was done by histologic examination, India ink injection, laser Doppler perfusion imaging
Evaluation of the role of exogenous estrogen in postoperative progress after laserskin resurfacing. Recent studies indicate that exogenous estrogens may promote wound healing. Many laserskin resurfacing (LSR) patients use hormone replacement therapy (HRT) or oral contraceptive pills (OCPs).To evaluate the effect of exogenous estrogen on LSR postoperative healing.This is a retrospective case control study of 44 female patients who underwent combination CO2/Er:YAG full-face LSR. Sixteen (...) postmenopausal patients using oral HRT during procedure and follow-up were compared with 16 controls. Six premenopausal patients on estrogen-containing OCPs during the procedure and follow-up were compared with six controls. Case and control groups were matched by age, skin type, and treatment technique. Premenopausal and postmenopausal groups were compared. The variables evaluated included erythema, swelling, crusting, purpura, pain, pruritus, reepithelialization, complications, and patient assessment
Single-pass carbon dioxide versus multiple-pass Er:YAG laserskin resurfacing: a comparison of postoperative wound healing and side-effect rates. Ablative laserskin resurfacing with carbon dioxide (CO2) and erbium:yttrium-aluminum-garnet (Er:YAG) lasers has been popularized in recent years and their side effects individually reported. No prior study, however, has directly compared the relative healing times and complications rates between the two different systems.To evaluate and compare (...) postoperative wound healing and short- and long-term side effects of single-pass CO2 and multiple-pass, long-pulsed Er:YAG laserskin resurfacing for the treatment of facial photodamage and atrophic scars.A retrospective chart review and analysis of sequential clinical photographs were performed in 100 consecutive patients who underwent laserskin resurfacing with single-pass CO2 (Ultrapulse 5000; Coherent, Palo Alto, CA, N=50) or multiple-pass, long-pulsed Er:YAG laser resurfacing (Contour; Sciton, Palo
A prospective survey of patient experiences after laserskin resurfacing: results from 2 1/2 years of follow-up. Laserskin resurfacing (LSR) is a common cosmetic surgical procedure, yet there are no prospective long-term studies on patients' perceptions of their procedure.To prospectively document patients' subjective experiences after LSR.Twenty-seven consecutive patients who underwent combination carbon dioxide/erbium:YAG full-face laser resurfacing for acne scarring or photodamage were (...) surveyed at postoperative days 1 and 3, within 1 week, at 3 weeks, 6 weeks, 3 months, and 30 months and asked standardized questions.Referral-based academic practice.One day after LSR, 10 patients (37%) were concerned about the outcome, and 3 (11%) considered it a "terrible" experience. At 2.7 days after the procedure, 23 patients (85%) would recommend LSR, and after 3.7 days, 24 (89%) would have the procedure again. At 3 months, the patients' mean rating of appearance was 2.3 (0-3 scale), and all 27