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안기영,지상운 한국연초학회 1990 한국연초학회지 Vol.12 No.1
Cigarette smoke is an aerosol consisted of both vapor and Particulate phases. In this study, the smoke condensates from several blended cigarettes were dissolved in water and the pH of the resulting solution was determined. The pH of the smoke condensate decreased with increase of puff number. In the beginning the pH decreased a little, while decreased remarkably from puff No.5 to puff No.10.
안기영,이재욱,한동길,Ahn, Ki-Young,Lee, Jae-Wook,Han, Dong-Gil 대한미세수술학회 1996 Archives of reconstructive microsurgery Vol.5 No.1
A free rectus abdominis flap can include a variable amount of muscle length depending on recipient site requirements. There is also great flexibility in flap design in terms of size, orientation of its axis, and the level of its location over the muscle. It is safe to design the skin island across the midline. Though skin islands designed over the most inferior portion of the abdomen have not always proved reliable when based on the superior epigastric artery, free flaps based on the inferior pedicle can be successfully designed in this area. As free flap based on the inferior epigastric vessels, this flap has been useful for large head and neck defects following ablative procedures, for facial contour restoration as a buried flap, for upper extremity defects, for lower extremity defects such as coverage of grade III tibial fractures and for breast reconstruction. A free rectus abdominis muscle or myocutaneus flap was used in 8 patients. The operations were performed between Sep. of 1994 and April of 1996. The patients were tongue cancer 1 case, chronic facial palsy 1 case, unilateral breast reconstruction 1 case, upper and lower extremity injury 5 cases. The free rectus abdominis muscle flaps were 4 cases and the free myocutaneous flaps were 4 cases. There was no failure of the flap, except one partial necrosis. One case of the skin grafts on the muscle flap was regrafted. One case of reoperation due to venous thrombosis was performed. In tongue cancer patient, a orocutaneous fistula was occurred, but conservative treatment and secondandry skin graft were done. In conclusion, a free rectus abdominis flap has many advantages such as a long and constant pedicle, easy dissection, enough soft tissue available, scar on the donor site to be hiddened, no need for changing position. So we think that this flap is the most useful one for small or moderate sized defects on the various sites.
안기영 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.3
Recently the incidence of pressure sores has been increased, due to the increased number of patients with injuries after traffic and industrial accidents or with long term loss of consciousness after various diseases. The patients have frequently required long term hospitalization and time-consuimg operation. According to these, the interest of plastic surgeon in pressure sore has increased and the techniques in the surgical management of pressure sores were also much improved. After World War Ⅱ, various methods for treatment of the pressure sore have been developed such as excision and direct closure, local rotational and transpotional flap, fasciocutaneous flap, myocuatenous flap, neurovascular island flap, microvascular surgery, or method by using tissue expanders, etc.. Author reviewed 16 patients who had received surgical treatment for pressure sore in the department of plastic surgery in Taegu Catholic Hospital from June 1990 to September 1991, and the following results were obtained; 1. On etiologic distribution, the spinal cord injuries due to traffic accidents was most common. 2. Locations of pressure sore were ordered in frequency as follows; Sacral area, 8 cases. Ischial area, 7 cases. Trochonteric are, 2 cases. Buttock, 1 case. 3. 16 patients were treated as follows; Exicison and direct closure, 2 cases. Local rotational and transpositional flap, 7 cases. Fasciocuataneous flap, 4 cases. Myocuatenous flap, 5 cases. The performed myocutaneous flaps were as follows: Bilateral gluteus maximus V-Y advancement(2 cases), Tensor fasuia lata myocutaneous flap(2 cases), Biceps and semitendinous V-Y advancement (1 case). 4. Post-op complications were found as follows; wound disruption, 4 cases, wound infection 3 cases, flap tip necrosis 1 case, secondary operation due to wound infection 1 case.
안기영,장경수,한동길,Ahn, Ki-Young,Jang, Kyoung-Soo,Han, Dong-Gil 대한미세수술학회 1995 Archives of reconstructive microsurgery Vol.4 No.1
Severe upper and lower extremity trauma may result in soft tissue loss with exposed bone and the subsequence of risk of chronic osteomyelitis or malunion of fracture fragments. Such injuries present a major reconstructive problem. But Since the introduction of microsugical technique, free muscle and myocutaneous flaps were employed to provide coverage of severely injured defects. Since Tai and Hasegawa(1974) first reported a breast reconstruction using by rectus abdominis myocuraneous flap, the free rectus myocutaneous flap has been widely employed for breast reconstuction, head and neck reconstruction, and extremity reconstruction in these days. The authors present their successful experience with free rectus abdominis muscle and rectus abdominis myocutaneous flaps for upper and low extremity reconstruction. From Nov. 94, to May 95, Five cases of severely injured extremites due to trauma or contact burn were treated with free rectus abdominis muscle flap or free rectus abdominis myocutaneous flap. All flaps except 1 case were survived without severe complications. As free muscle or myocutaneous flap, the free rectus abdominis flap has the advantages of a reliable pedicle, easy dissection, and an acceptable donor site, so it seems logical to apply the free rectus abdominis flap to apply in upper and lower extremity reconstruction.