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탄산가스 레이저를 이용한 구순 혈관종의 절제와 구순 형태 복원
서승리 ( Seung Lee Seo ),황규광 ( Kyu Kwang Whang ),이미애 ( Mi Ae Lee ),함정희 ( Jeong Hee Hahm ) 대한피부과학회 1998 대한피부과학회지 Vol.36 No.3
Background: Massive bleeding, inability to identify important landmarks and structures, and necessity for a blood transfusion have been the usual problems of hemangioma excision. Objective . We introduce a CO2 laser excision technique as a surgical method for the treatment of hemangioma of the lips and demonstrate its benefits. Methods: In 4 patients with nevus flammeus of hemiface and accompanying hemangioma of the lips, excision of the hemangioma was performed using a focused beam from a CO2 laser under local anesthesia. Results : Excellent to good results were achieved with minimal blood losses in all patients. No or minimal post-operative pain and edema and no significant complications were observed. Conclusion :The CO2 laser excision technique is recommended since it renders less textural change, greater volume reduction, hemostasis and an overall good cosmetic outcome than defocused modes or conventional scalpel surgery. (Korean J Dermatol 1998;36(3): 441-445)
서승조 진주교육대학교 과학교육연구소 2000 科學敎育硏究 Vol.26 No.-
Three well preserved trackways and one other trackway are found at Dooho-ri, in Goseong County. At the site A, a quadrupedal Sauropod's trackway shows that a trackway, about 20ms long changed its direction from 170˚ to 220˚ in azimuth. It seems that the trackmaker walked along the curved lake-shore line at that time. And at the site B, three bipedal tracks are observed. Trackmaker Dino-1 and -2 walked toward 250˚ in azimuth(approximately WSW) and Dino-3 crossed their trackway from Southwest to Northeast. The study of the variation of Dino-1's pace and direction leads to the conclusion that Dino-3 may have interfered with Dino-1's itinerary.