http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Eul-Sik Yoon (검색결과 78 건)
- 무료
- 기관 내 무료
- 유료
-
-
레이저 박피술의 피부면적 감소효과와 레이저 punch out 병변의 치유에 대한 실험적 연구
강동희,윤을식,구상환,안덕선,박승하 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3
An experimental study was designed to analyze the surface reduction effect of ultrapulse carbon dioxide laser on the skin of guinea pigs receiving laser resurfacing. Two squares of skin measuring 3x3 ㎠ were designed on each side of the abdomen of guinea pigs(n=10). Five animals received laser resurfacing on their abdomen at energy of 250mJ/5 watt, and five other animals received 500 mJ/5 watt. On each animal, the left side square was treated with one pass of a CO2 laser, and the right side q=square was treated with two passes using a C.P.G. scanner. The size of the resurfacing area was determined by celluloid overlays at 1,2,3,4 and 6 weeks. Immediately following laser resurfacing, the area was decreased to 69%(left side) and 56%(right side) of the designed area in the 250 mJ/5 watt group, and 59% and 40% in the 500mJ/5 watt group. After 6 weeks, the resurfaced area had been reduced to 70% and 56% of the designed area in the 250mJ/5 watt group, and 60% and 40% in the 500mJ/5 watt group. As a result, the effect of surface reduction by CO2 laser resurfacing increased at a higher power and when more passes of the ultrapulse carbon dioxide laser were applied. The laser treated skin continued to maintain its contracted dimensions. These findings suggest that ultrapulse carbon dioxide laser may be an effective treatment method for rhytides. Another experiment was performed on multiple punch-out lesions on guinea pig skin(n=2) with 1,2,3 mm collimated hand pieces for the purpose of determining a new laser treatment method. After 4 weeks, on gross and histological examination, there were no differences in the healing of multiple punch-out lesions and the healing of punch-out lesions was complete without any scarring. These findings suggest that the laser punch-out method can be used for the treatment of acne scars.
-
-
이개 상후방 확장 절개를 가한 Zig-Zag 관상 절개법을 이용한 관골골절의 치료
윤을식,구상환,안덕선,박승하 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.1
The ideal surgical approach to treat craniomaxillofacial fractures should provide maximum exposure of the fractured segments, ensure less potential for injury to facial structures, and allow for good cosmetic results. The most frequently used approach is the coronal incision. However, the coronal approach poses some disadvantages. The most common complication is widening of the scar at the head. The inevitable scar, whether narrow or wide, produce a natural separation of the hair. Also, hairline recession may expose the scar above the level of the ear and preauricular sensory deficits and motor deficits involving the frontal branch of the facial nerve have been reported. In order to avoid above problems, we have used zig-zag coronal incision with a postauricular extension from September, 1996 to May, 1998 in 35 cases with diagnosis varying from zygoma complex fracture to extensive facial fracture. Clinical follow-up ranged from 2 to 22 months. In our series of 35 patients, one patient had hematoma, one patient transient weakness of the frontalis muscle and one patient had sensory deficit. We found that this approach maintains the advantages of lowering the pivot point but also lessens the disadvantages of an anterior incision and unlike the straight-line coronal incision, this incision line is immediately much less visible.
-
-
Development and Verification of Plane Strain Testing Apparatus for Various Stress Path Tests
Yoon Sik Choo,Eul Ryong Jang,Choong Ki Chung 한국지반공학회 2011 international journal of geo-engineering Vol.3 No.1
The stress path test under the plane strain condition is necessary to evaluate the soil behavior in many geotechnical problems. The existing plane strain testing apparatuses, however, could not be used for the tests following all the possible stress paths in the field. These apparatuses are unable to maintain the plain strain condition below K0 line or have limitations to measure the pore water pressure or the volume change accurately. In the present study, the newly developed plane strain testing apparatus to simulate all the possible stress paths is introduced and its capability is verified. The new apparatus employs the double membrane system. During the stress path tests, the external membrane maintains plane strain condition, while the internal membrane helps to measure the pore water pressure or the volume change accurately. Plane strain tests using both single and double membrane systems were performed under six different stress paths for the verification of appropriateness of the newly developed apparatus. Consequently, the applicability of the new apparatus was verified.
-
수근관 증후군을 동반한 정중신경의 지방섬유성 과오종-증례 보고
윤을식,정종필,안덕선 大韓成形外科學會 2000 Archives of Plastic Surgery Vol.27 No.2
Lipofibromatous hamartoma of median nerve is an extremely rare tumor that involves the palmar aspect of the hand, wrist and distal forearm. Other terms to describe this condition include macrodystopia lipomatosa of median nerve and median nerve territory-oriented macrodactyly. Lipofibromatous hamartoma is the most common condition associated with macrodactyly in the hand. Also, it most commonly involves the median nerve and is one of the causes of carpal tunnel syndrome. We present a review of our experience with this unusual neoplasm and give a detailed follow-up on patient treated by surgical exploration with carpal tunnel release.
-
Yoon, Jeongmin,Chung, Jae-Ho,Hwang, Na-Hyun,Lee, Byung-Il,Park, Seung-Ha,Yoon, Eul-Sik Korean Society of Plastic and Reconstructive Surge 2018 Archives of Plastic Surgery Vol.45 No.6
Background Despite the increasing popularity of prosthetic breast reconstruction, scant data exist on the microbiological profile of drainage fluid from closed-suction drains and the relationship thereof to surgical-site infections (SSIs) in breast reconstruction surgery. This study aimed to determine whether bacteria isolated from drainage fluid were associated with the development of SSIs, and whether the bacterial profile of drainage fluid could be a clinically useful predictor of SSIs. Methods We performed a retrospective chart review of 61 women who underwent tissue expander/implant or direct-to-implant reconstructions. Patient demographics and culture studies of drainage fluid from suction drains collected on postoperative day 7 were evaluated. Results Sixteen patients (26.23%) were culture-positive, and 45 patients (73.77%) were culture-negative. The most frequently isolated bacteria were coagulase-negative staphylococci, followed by Staphylococcus aureus. SSIs were diagnosed in seven patients and were mostly resolved by systemic antibiotics; however, the tissue expander or implant was explanted in two patients. Positive culture of drainage fluid from closed-suction drains was significantly associated with the development of SSIs (P<0.05). The positive predictive value was 37.50%, and the negative predictive value was 97.78%. Conclusions To our knowledge, this study is the first to demonstrate a significant association between the microbiological profile of drainage fluid from closed-suction drains and the development of SSIs in patients with prosthetic breast reconstructions. The high negative predictive value suggests that microbial testing of drainage fluid from closed-suction drains may have clinical utility. Further prospective studies with larger sample sizes are required to confirm our findings.
-
-
Jeongmin Yoon,정재호,황나현,Byung Il Lee,Seung-Ha Park,Eul-Sik Yoon 대한성형외과학회 2018 Archives of Plastic Surgery Vol.45 No.6
Background Despite the increasing popularity of prosthetic breast reconstruction, scant data exist on the microbiological profile of drainage fluid from closed-suction drains and the relationship thereof to surgical-site infections (SSIs) in breast reconstruction surgery. This study aimed to determine whether bacteria isolated from drainage fluid were associated with the development of SSIs, and whether the bacterial profile of drainage fluid could be a clinically useful predictor of SSIs. Methods We performed a retrospective chart review of 61 women who underwent tissue expander/implant or direct-to-implant reconstructions. Patient demographics and culture studies of drainage fluid from suction drains collected on postoperative day 7 were evaluated. Results Sixteen patients (26.23%) were culture-positive, and 45 patients (73.77%) were culture- negative. The most frequently isolated bacteria were coagulase-negative staphylococci, followed by Staphylococcus aureus. SSIs were diagnosed in seven patients and were mostly resolved by systemic antibiotics; however, the tissue expander or implant was explanted in two patients. Positive culture of drainage fluid from closed-suction drains was significantly associated with the development of SSIs (P<0.05). The positive predictive value was 37.50%, and the negative predictive value was 97.78%. Conclusions To our knowledge, this study is the first to demonstrate a significant association between the microbiological profile of drainage fluid from closed-suction drains and the development of SSIs in patients with prosthetic breast reconstructions. The high negative predictive value suggests that microbial testing of drainage fluid from closed-suction drains may have clinical utility. Further prospective studies with larger sample sizes are required to confirm our findings.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
