Sang Tae Ahn

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To study the effects of alteration of blood flow on wound healing in rabbit ear ulcers, two models were designed that produced maximum ischemia and maximum congestion, respectively, with complete survival of the ear by selective division of one or more of three arteries or veins and circumferential incisions. After selection of the best models from six(More)
A prospective, controlled clinical trial was designed to assess the efficacy of a new treatment of hypertrophic scars. Silicone gel sheeting was applied to 14 hypertrophic scars in 10 adults for 8 weeks. The treated scars and untreated, mirror-image or adjacent control scars were photographed, biopsy specimens were taken, and they were measured(More)
Historically, tissue expansion is a prolonged process, typically requiring at least 6 weeks to complete. Recently, interest has increased in shortening this time period. In the current study, a continuous infusion device maintaining constant expander pressure less than capillary filling pressure was used in a canine model in seven dogs to minimize the time(More)
Recent studies have shown that liposuction aspirates from rat, rabbit, mouse, and human sources contain pluripotent adipose tissue-derived stromal cells (ASCs) that can differentiate into various mesodermal cell types, including osteoblasts, myoblasts, chondroblasts, and preadipocytes. To develop a research model for autologous bone tissue engineering, we(More)
We studied the effects of a silicone gel bandage that was worn for at least 12 hours daily on the resolution of hypertrophic burn scar. In a second cohort, the prevention of hypertrophic scar formation in fresh surgical incisions by this bandage was also evaluated. In 19 patients with hypertrophic burn scars, elasticity of the scars was quantitated serially(More)
Recently proposed procedures for in vitro generation of new cartilage may be difficult to perform in humans because so many chondrocytes are needed for tissue engineering. In this study the authors investigated new, efficient, low-cost techniques for the isolation and culture of chondrocytes from the ear cartilage of the rabbit. They performed a low-density(More)
BACKGROUND In cases where there is severe intimal dissection in the recipient hepatic artery (HA), or if the HA has been used already and additional operations are needed due to graft rejection or arterial occlusion, an alternative is necessary. In the present study, we have reported the feasibility of using the right gastroepiploic artery (RGEA) and(More)
1. Evans DG, Baser ME, McGaughran J, et al. Malignant peripheral nerve sheath tumours in neurofibromatosis 1. J Med Genet 2002;39:311-4. 2. Wallace MR. Neurofibromatosis: phenotype, natural history, and pathogenesis, 3rd ed. edited by J. M. Friedman, David H. Gutmann, Mia MacCollin, and Vincent M. Riccardi. Baltimore: Johns Hopkins Press, 1999. Pp. 380.(More)
Cutaneous focal mucinosis is a type of degenerative-inflammatory dermal mucinoses characterized with asymptomatic, single, dermal mucin deposition. Because of its rarity, it is often mistaken clinically for other disorders such as sebaceous cyst, fibroma, myxoma, and xanthoma. In this study, we will discuss a case of cutaneous focal mucinosis arising from(More)