Use of scleral eye shields for periorbital laser surgery.
A description of the technique used in preventing inadvertent injury to the eye during periorbital or eyelid laser surgery is given.
Biomedical subjects
Publications and source records attributed to J L Ratz.
A description of the technique used in preventing inadvertent injury to the eye during periorbital or eyelid laser surgery is given.
The carbon dioxide laser can be successfully used in its two different modes of operation to treat rhinophyma in a relatively bloodless fashion. With the focused mode, layers of excess soft tissue are precisely shaved away until the approximate size and shape of the nose has been achieved. Then with the defocused mode, extremely thin layers of soft tissue can be vaporized to provide the final contouring. Minimal blood loss in most cases, rapid healing, and little postoperative pain are significant advantages of this technique.
Cutaneous benign neurofibromas are the most common skin manifestation of Von Recklinghausen neurofibromatosis (NF). An autosomal dominant disorder, NF has extraordinary clinical variability and multisystem involvement; many patients develop hundreds of cutaneous neurofibromas in a lifetime. This problem can easily and rapidly be treated using the CO2 laser with results equal to or better than excision. The procedure is very helpful for patients with large numbers of small- or medium-sized cutaneous neurofibromas.
Digital myxoid cysts represent a relatively uncommon cutaneous disorder which have often proven refractory to conservative management. We report a series of ten patients with this condition who were effectively treated with carbon dioxide (CO2) laser vaporization. There has been no recurrence of cysts during a follow-up period ranging from 14 to 44 months.
Superpulsed carbon dioxide lasers emit a controlled train of short duration, high-power pulses which minimize the protein coagulation effects of the laser. Very high irradiances can be used with superb control of vaporization without significant peripheral heating. In incisional work, superpulsing permits the surgeon to advance the hand piece as slowly and as accurately as desired, while experiencing a fraction of the necrosis attendant to conventional continuous-wave lasers. In vaporizational applications, target tissue volumes are flash vaporized before significant heat can be transferred to surrounding tissue, promoting faster wound healing and reduced scarring. The superpulse feature may significantly change the way in which the carbon dioxide laser is used in cutaneous surgery.
A double-blind, double-paired comparison, placebo-controlled study was undertaken to determine the optimal agent for sclerotherapy of spider telangiectasias of the lower extremities. Sodium tetradecyl sulfate 0.5%, polidocanol 0.25%, heparsal, and normal saline control were evaluated in terms of clinical effectiveness and patient acceptance. Although all of the agents, except for the control, were effective, polidocanol was found to have the fewest adverse reactions and afforded the greatest patient comfort.
The argon laser, used in either a pulsed or continuous fashion, is highly effective for treatment of angiokeratomas. Local anesthesia is usually not required. Because energy deposition is well localized, wounds heal rapidly with excellent cosmetic results.
A 70-year-old patient with a chronic cutaneous ulcer treated by minocycline hydrochloride developed hyperpigmentation of the forearms. Biopsy material was studied by light microscopy, electron microscopy and X-ray energy spectroscopy. Granular gold-brown pigment was found in dermal histiocytes and eccrine myoepithelial cells, which gave positive reaction with Prussian blue and Fontana-Masson stains. Electron microscopy revealed intracytoplasmic granules of dark, homogeneous material and small fine particles. X-ray energy spectroscopy showed iron and other elements in smaller amounts. The different types of minocycline-related hyperpigmentation and the possible pathomechanism are discussed with special regard to the importance of the diagnostic methods.
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Advances in laser technology now permit the physician to provide an effective form of treatment for a large variety of cutaneous disorders for which no previous therapy or only poor forms of therapy previously existed. Additional refinements in both laser instruments and treatment techniques are certain to have a profound impact on the practice of dermatology. For that reason, a complete understanding of the basic properties of lasers and how they can be utilized most effectively in various clinical settings is the goal of this article.
This article discusses alternative methods for the removal of unwanted hair, the mechanisms of action of each, and their advantages and disadvantages. Epilating needle design is discussed and epilating technique is described. Physician-patient interaction and the role of the dermatologist in electrosurgical epilation are explored.
The chronic stage of acne keloidalis nuchae is characterized by symptomatic keloidal papules and plaques on the occipital scalp and posterior neck. We describe our results with the use of the carbon dioxide laser in eight patients with treatment-refractory acne keloidalis nuchae.
Sebaceous carcinoma of the eyelid is a rare neoplasm usually arising from the meibomian gland. This tumor has distinctive histologic features characterized by unique foamy cytoplasm. The cases of three patients with this tumor who were treated by Mohs' surgery, followed by ophthalmologic cosmetic repair, are presented and discussed.
A case of multicentric reticulohistiocytosis with thyroid involvement is reported. This systemic condition has an unknown cause and is manifested by the development of nodules containing an infiltrate of characteristic histiocytic and multinucleated giant cells in the synovium, skin, subcutaneous tissues, and occasionally bone or other tissues.
The technique for using the carbon dioxide laser in the vaporization mode to treat multiple lesions of syringoma of the face without adverse scarring, textural changes, or recurrence is described.
Techniques and results of CO2 laser vaporization of epidermal nevi in 15 patients over a 5-year period is presented. This procedure provides an alternative and effective surgical method for the successful removal of such lesions.
Analysis of 1,620 basal cell carcinomas treated at the Cleveland Clinic Foundation from 1981 to 1983 confirms that the majority of basal cell carcinomas occur on the face and that the relative risk for recurrent tumor is high in certain locations, especially the nose. Alternately, tumors found on the neck/scalp, trunk, and arms have a low relative risk of recurrence when compared to all other anatomic locations. More primary and fewer recurrent tumors now presenting to our unit have been referred for Mohs surgery as primary therapy. This results in higher cure rates for treatment of all basal cell carcinoma.
Diazolidinyl urea (Germall II) is a preservative recently used in cosmetics. It is effective against most contaminating microorganisms, especially Pseudomonas. We report the first case of an acute allergic contact dermatitis from diazolidinyl urea that was contained in a hair gel.