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RISS 인기검색어
- 검색키워드
- 저자 : 유영선(Young-Sun Yoo) (검색결과 78 건)
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저칼슘식이가 백서의 발치창 치유에 미치는 영향에 관한 실험적 연구
유영선,황의환,이상래,Yoo Young-Sun,Hwang Eui-Hwan,Lee Sang-Rae 대한영상치의학회 1996 Imaging Science in Dentistry Vol.26 No.2
The purpose of this study was to investigate effects of osteoporosis on extraction wound healing in the calcium deficient rat. In order to carry out this study, ten-week old Wistar strain rats weighing about 300 gms were selected. When the rats reached thirteen-week old, rats' mandibular first molars were removed. The rats were then divided into three groups: Group l(rats given a normal diet both before and after tooth extraction), Group 2(rats given a low calcium diet for three weeks before tooth extraction and a normal diet after tooth extraction), and Group 3(rats given a low calcium diet for three weeks before and after tooth extraction). The healing of extraction wounds, as assessed by microradiography, autoradiography, and histopathologic examination, were compared among these three groups. The obtained results were as follows : I. In Group 1, newly formed bone and active uptake of 45Ca around extraction wound were noted on the 3rd and the 7th day. On the 14th and the 21st day, the extraction wounds of this group showed the bone trabecular formation and active 4Ca uptake in the extraction wound and alveolar crest. The more prominent bone trabeculae with a less uptake of /sup 45/Ca were noted on the 42nd day. 2. In Group 2, newly formed bone and thinning of alveolar bone trabeculae with more extensive uptake of /sup 45/Ca than that in Group 1 were noted on the 3rd and the 7th day. On the 14th day, bone trabeculae were less thicker than that in Group 1. The prominent bone trabeculae in the extraction wounds and alveolar crest were noted on the 21st and the 42nd days. 3. In Group 3, newly formed bone was noted on the 3rd and the 7th day. Alveolar bone trabeculae and uptake of /sup 45/Ca were similar to that in Group 2. On the 14th and 21st day, bone trabeculae were less thicker than that in Group 2 and Group 3. The osteoporotic change with active uptake of /sup 45/Ca was markedly noted on the 42nd day.
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위암 환자에 발생한 동시성과 이시성암의 임상병리학적 특성
유영선,최은서,김성수,민영돈,Yoo, Young-Sun,Choi, Eun-Seo,Kim, Sung-Soo,Min, Young-Don 대한위암학회 2009 대한위암학회지 Vol.9 No.4
목적: 진단 기술의 발전과 함께 위암 환자에서 동시성과 이시성암이 발견되는 빈도가 증가하고 있다. 본 연구에서는 위암에서 발견된 동시성과 이시성암의 임상병리학적 특성과 임상적 의의에 대하여 알아보고자 하였다. 대상 및 방법: 1998년 1월부터 2008년 3월까지 조선대학교병원에서 위암으로 진단된 환자들의 의무기록을 후향적으로 분석하였다. 결과: 1,048명 위암 환자 중 38명(3.6%)에서 동시성과 이시성암이 있었다. 38명 중 16명(42.1%)은 동시성암이었고 22명(57.9%)은 이시성암이었다. 위암과 이차성 원발암 간의 평균 시간간격은 $27.08{\pm}31.25$개월이었다. 가장 흔한 중복암은 폐암(8/38, 21.1%)과 대장암(8/38, 21.1%)이었다. 27명의 환자가 위암에 대하여 수술적 치료를 하였으며 이 중 5명(18.5%)은 동시성암, 22명(81.5%)은 이시성암이었다. 평균 생존 기간은 49.8개월이었으며 동시성암의 경우는 24.6개월 이시성암의 경우는 68.1개월이었고 이들의 3년 생존율은 동시성암, 이시성암 각각 33.3%, 81.1%였다. 결론: 위암에서의 이차성 원발암 진단에 대한 진단에 있어 충분한 수술 전 검사를 통한 동시성암의 발견과 지속적인 추적검사를 통한 이시성암의 발견을 위해 주의를 기울여야 한다. Purpose: With the development of diagnostic techniques, second primary neoplasms such as synchronous or metachronous cancers in gastric cancer patients are being increasingly found. In this study, we investigated the clinicopathological features and clinical significance of gastric neoplasms combined with synchronous and metachronous cancers. Materials and Methods: 1,048 patients who were diagnosed with gastric cancer in Chosun University Hospital from January 1998 to March 2008 were retrospectively reviewed. Results: 38 of the 1,048 patients with gastric cancer (3.6%) had synchronous and metachronous cancers. Of the 38 patients, 16 patients (42.1%) had synchronous cancer and 22 patients (57.9%) had metachronous cancer. The average time interval between gastric cancer and the secondary primary cancer was $27.08{\pm}31.25$ months. The most common second primary neoplasm was lung cancer (8/38, 21.1%), followed by colorectal cancer (8/38, 21.1%). Among the 27 patients who underwent surgical resection for gastric cancer, 5 patients (18.5%) were in the synchronous group and 22 patients (81.5%) were in the metachronous group. The mean survival time of the 38 patients was 49.8 months. The mean survival time was 24.6 months for the synchronous cancer patients and 68.1 month for the metachronous cancer patients. The 3 year survival rate of the synchronous group and the metachronous group was 33.3% and 81.1%, respectively. Conclusion: We must pay attention on the preoperative workup for synchronous cancer and on the postoperative follow-up for metachronous cancer in gastric cancer patients.
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종양크기에 따른 미세유두상 갑상선암의 임상병리학적 특성
유영선(Young Sun Yoo),김성수(Sung Soo Kim),문성표(Seong Pyo Mun),김경종(Kyung Jong Kim),장정환(Jeong Hwan Chang),민영돈(Young Don Min),김성환(Seong Hwan Kim),조현진(Hyun Jin Cho),김권천(Kweon Cheon Kim) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.76 No.6
Purpose: Papillary thyroid microcarcinomas (PTMC), which are not palpable and have no clinical symptoms are 1.0 cm or less in diameter. The optimal extent of thyroid tumor resection has been controversial. We investigated clinicopathological findings of PTMC of 5 mm or less in diameter for reasonable therapeutic approach. Methods: From, Jan. 2002 to Dec. 2006, 366 patients underwent thyroidectomy for thyroid papillary carcinoma at our institution. Among these patients, 62 patients with a mass measuring less than 5 mm and 103 patients with a mass 5 mm to 1.0 cm were selected. We retrospectively reviewed their medical records. Results: There was no significant difference on the clinical characteristics except multifocality. We performed more unilateral lobectomy, near total thyroidectomy with or without neck node dissection in patients with PTMC of less than 5 mm (P=0.13). In permanent biopsy, lymph node metastasis more frequently occurred in patients with PTMC of less than 5 mm (P=0.03). There were no differences in capsular invasion, distant metastasis or recurrence. Conclusion: In papillary thyroid microcarcinoma less than 0.5 cm, it is very uncommon for capsular invasion, distant metastasis and locoregional metastasis to exist. The extent of tumor resection may be limited less than near total thyroidectomy for suitable cases, because there was no locoregional metastasis or distant metastasis in the follow-up period. Longer follow-up periods would be required to confirm that limited surgery is sufficient for tumors less than 0.5 cm in size.
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복부 둔상 후에 발생한 광범위한 하대정맥 손상: 증례보고
유영선 ( Young Sun Yoo ),문성표 ( Seong Pyo Mun ) 대한외상학회 2014 大韓外傷學會誌 Vol.27 No.4
Traumatic injuries of the inferior vena cava (IVC) are the most challenging lesions in abdominal vascular injuries and are associated with a high mortality rate. Although endovascular treatment has been addressed in the management of vascular trauma, surgery is the mainstay in the treatment for IVC injury as an endovascular technique for the venous system has not been developed. We report a case of successful surgical repair of an extensive IVC laceration following a fall. [ J Trauma Inj 2014; 27: 219-23 ]
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고부가가치 패션제품개발을 위한 오뜨꾸뛰르 디자이너 복고적 재킷디자인 분석
유영선(Young Sun Yoo),김언정(Eon Jeong Kim) 한국복식학회 2014 服飾 Vol.64 No.3
The purpose of this research is to examine the expression methods of Haute Couture designers` high value-added jacket designs, In order to achieve this, the positions and sizes of the design component items of tailored jackets designed by Haute Couture designers from the 1940s to the 1970s were analyzed. The results of the analysis are as follows. First, the silhouette changed while leading the contemporaneous fashions, and such changes could be confirmed by the width and length of the jacket`s shoulder, chest, waist, and hem that determine the silhouette. Particularly, the length of the chest changed which signifies that the depth of the armhole was playing an important role in the production of high value-added jackets in relation to the sleeves and the fit of jackets. Second, the position and the size of the dart are the components that can express the fit of a jacket and the designer`s creativity, The starting point position of the dart and the position passing by waist, and the position of the end of the dart were placed in the position beyond B.P. depending on the designer`s creativity and techniques, deriving the changes of the silhouette and creating high value-added jackets. Third, the tailored collar, which was a three-dimensional component made up of the upper collar, gorge line, lapel, and break line, was an important component that could express high value-added jackets. Changes in the width and the height of the break line position of the sides of the neck were represented as changes in the neck size of the collar, and changes in the vertex locations of the upper collar corner-point, the gorge line (the corner-point of the lapel and V zone) were also represented as diverse tailored collar designs. And the differences in the width and the length of each component of the collar were related to each other and represented as changes in the slope and angle of the collar outline. Fourth, the changes in sleeve designs of the jacket were in such items as the width of the sleeve opening, the width of the sleeve hem, and the length of the sleeve, and were repre sented as diverse sleeve designs such as widened sleeve opening types, and straight line types.
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