미만성대형 B세포림프종의 좌측 신동맥 압박에 의한 급성 신부전 1예

악설정 ( Seol Jung Ak ),박근모 ( Keun Moo Park ),허정은 ( Jung Eun Huh ),이동렬 ( Dong Ryeol Lee ),공진민 ( Jin Min Kong ),김호균 ( Ho Kyun Kim ),전미영 ( Mi Young Jeon ) 대한내과학회 2009 대한내과학회지 Vol.76 No.6

미만성대형 B세포 림프종에 의한 급성 신부전으로, 복막강내 임파절에 의한 양측성 요관 폐쇄, 요도 및 콩팥 깔때기의 종양 침범, 종양 용해 증후군, 급성 세뇨관 괴사 혹은 림프종의 신침범 등이 종종 보고되어지고 있는데, 덩이 효과에 의한 신동맥의 직접적 압박으로 인한 급성신부전은 매우 드문 경우이다. 이에 저자들은 미만성대형 B세포 림프종이 진행됨에 따라 동반된 급성 신부전의 진단 및 치료 경과를 문헌과 같이 보고하는 바이다. Malignant lymphomas can involve any organ, but rarely cause acute renal failure as an initial manifestation. Impaired renal function secondary to renal arterial compression by a tumor mass has not been reported. A 50-year-old man was admitted with low back pain, weight loss, and a palpable abdominal mass. He developed non-oliguric acute renal failure secondary to extrinsic compression of the left renal artery by enlarged lymph nodes in the posterior wall of the pelvic cavity. Abdominal computed tomography (CT) showed the complete absence of perfusion of the left kidney due to extrinsic compression of the left renal artery by a huge diffuse large B cell lymphoma (stage IVa, International Prognostic Index score 3). We report a case of malignant lymphoma presenting as acute renal failure due to extrinsic compression of the left renal artery; this was treated successfully with systemic combination chemotherapy. (Korean J Med 76:758-763, 2009)

간에 국한되어 발생한 단일성 림프관종 1예

악설정 ( Seol Jung Ak ),박승근 ( Seung Keun Park ),박희욱 ( Hee Ug Park ) 대한소화기학회 2012 대한소화기학회지 Vol.59 No.2

Hepatic lymphangioma is a rare benign neoplasm. It usually occurs as a part of systemic lymphangiomatosis. Isolated hepatic lymphangioma is extremely rare. A 58-year-old woman with weight loss was referred for the evaluation of chronic renal insufficiency and hepatic mass. Abdominal computed tomography showed 3 cm sized multilobulated cystic lesion with calcification and thick septal enhancing focus in the segment V of the liver. On abdominal magnetic resonance imaging, the masses exhibited low signal intensity on the T1-weighted images and high signal intensity on the T2-weighted images, Malignant tumor could not be ruled out, and therefore, the patient underwent right anterior segmentectomy of the liver, Gross pathology reveraled a 3.0×2.2×1.5 cm mass with multichamber cyst, which was filled with mucoid material. Histologically the mass was composed of irregularly shaped vascular channels filled acellular homogeneous lymph fluids. The final diagnosis was hepatic isolated cavernous lymphangioma. Herein, we report a case of isolated hepatic lymphangioma and also review the existing literature.

21세기의 치과의료관리

김설악,Kim, Seol-Ak 대한심미치과학회 2000 Journal of the Korean Academy of Esthetic Dentistr Vol.9 No.1

일부 특수학교 장애인의 치아우식증과 식생활실천지침 이행정도의 관련성

문희정 ( Hee Jung Moon ),김설악 ( Seol Ak Kim ),박희정 ( Hee Jung Park ) 한국치위생학회(구 한국치위생교육학회) 2012 한국치위생학회지 Vol.12 No.6

Objectives: The purpose of our study was to examine the relationship of oral health status such as dental caries and the performance of dietary action guides with six items. Methods: Oral examination and self-administrated questionnaire were conducted on 87 disabled students, aged 6-19 who were attending special school in the area of the metropolitan Seoul. Two logistic regression models to estimate odds ratios and 95% confidence intervals were used to investigate the association dental caries experience and the performance of dietary action guides after controlling for potential confounders. Results: The proportion of study subjects with caries were 37.9%, 26.9%(male) and 54.3%(female), respectively(p<0.05). There was significantly difference the subjects with caries and perceived oral health status(p<0.01). Among the dietary action guides items, skipping breakfast and not avoiding waste food were significantly higher in the proportion of subjects` caries(p<0.05, p<0.01, respectively). The avoiding waste food groups had more possibility of having caries significantly(p<0.05), even after controlling gender, and perceived oral health status. Conclusions: These results indicate that oral health promotion policy with dietary action guides should be strengthened for support of disabled student`s dental health.

치과위생사의 전문직업적 정체성과 관련 요인

박정은 ( Jung-eun Park ),김설악 ( Seol-ak Kim ),박용덕 ( Yong-duk Park ) 한국치위생학회(구 한국치위생교육학회) 2016 한국치위생학회지 Vol.16 No.4

Objectives: The purpose of the study was to investigate the professionalism identity and related factors in dental hygienists. Methods: A self-reported questionnaire was completed by 347 dental hyfienists from March 5 to May 31, 2015. Except incomplete 39 answers, data were analyzed by frequency analysis, ANOVA, Pearson``s correlation coefficient, and multiple regression analysis using SPSS 22.0. The questionnaire comprised 25 items including professionalism scale by Hall, Snizek, and Anderson by Likert 5 point scale. Results: Professionalism scale revealed self-regulation(3.65±0.58), service conviction(3.64±0.62), skills and training(3.21±0.70), sense of professional vocation(3.20±0.65), and thought about professional group(3.08±0.78). The professionalism identity by general characteristics showed significant differences and there were positive correlations in main factors. The identity level was influenced by internal factors rather than economic compensation. Conclusions: There were positive correlation in main factors. The identity level was influenced by internal factors.

치위생 실습실에서 치위생과 학생의 감염에 관한 태도 연구

김은희 ( Eun Hee Kim ),김설악 ( Seol Ak Kim ) 한국치위생학회 2009 한국치위생학회지 Vol.9 No.4

β-TCP 첨가량에 따른 생분해성 PLA/β-TCP 복합체의 생체활성과 기계적 특성 평가

문희정,김설악,김동애,Moon, Hee-Jung,Kim, Seol-Ak,Kim, Dong-Ae 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3

본 연구는 PLA에 β-TCP를 첨가한 복합체의 생체활성도와 기계적 성질을 평가하고자 한다. 클로로프롬 용액에 24 시간 교반기를 이용해서 PLA와 β-TCP를 무게별로 0, 10, 30, 50 wt% 용해한 후 에탄올 용액에서 PLA/β-TCP 복합체를 추출 후 사출성형을 통해 다양한 기계적 평가를 위한 시편을 제작하였다. SBF 인체 유사 체액에 1, 7, 30, 90 일 동안 침전하여 생체활성도를 평가하였다. 본 연구 결과 PLA/β-TCP 10-30 wt% 첨가한 실험군에서는 유의하게 강도가 증가하였으나 50 wt% 첨가한 실험군에서는 감소하였다. 결론적으로 β-TCP 30 wt% 이상 첨가하는 것은 사출성형 고분자 복합체의 기계적 특성이 개선되지 않는다. 표면 생체활성도는 90일 침전 후 표면 전체에 아파타이트 결정을 형성하였다. β-TCP는 표면특성과 기계적 성질 개선효과가 있음을 입증하였다. 향후 PLA/β-TCP 첨가량에 따른 효율성과 폭 넓은 물성 연구가 필요할 것으로 사료된다. The aim of the present study was to investigate the mechanical properties of melt-injected poly lactic acid (PLA) composites with β-tricalcium phosphate (β-TCP). The PLA mixed with calcined PLA/β-TCP powder to be contents of 0, 10, 30, 50 wt%, respectively, was dissolved in chloroform solvent under stirring for 24 h. Then the liquid mixtures were dropped into ethanol to extract solvent. After drying, the well-dispersed PLA/β-TCP composites were granulated and melt-injected to prepare specimens for various mechanical testing. PLA/β-TCP induced the precipitation of an apatite bone-mineral phase on the surface after immersion in a human simulated body fluid (SBF) for 90 days, showing in bioactivity. Mean various mechanical properties PLA/β-TCP composite were increased up to 10-30 wt% with significantly in part and composite were decreased 50 wt% of showing in mechanical properties. In conclusion, Over 30 wt% addition of β-TCP to PLA may be not advisable to improve the mechanical properties of melt-injected polymeric composites. Results indicated that β-TCP can be used considered as potential reinforcing agent for increasing mechanical properties for PLA. Therefore, it was suggest that the additional effects of β-TCP and research on a wide range of substances.

생활터 중심 아동의 단기계속구강관리 효과분석

김영진 ( Young Jin Kim ),김설악 ( Seol Ak Kim ),최은영 ( Eun Young Choi ) 한국치위생학회(구 한국치위생교육학회) 2013 한국치위생학회지 Vol.13 No.1

Objectives: The purpose of this paper is to analyze the effects of short-term oral health care on children at community care centers, in order to allow them to maintain good oral health. Methods: The SPSS (Statistical Package for Social Science), Window Version 18.0 was used to analyze the data for the children`s present conditions of oral health; their ability to maintain good oral health; their general knowledge about oral health; changes in their oral health awareness; habit formations concerning oral health; and the satisfaction level of oral health education. Results: 1. While the average number of teeth before the program is 19.84(6.19), that of teeth after the program is 21.33(6.10). 2. Average test scores on oral health information of post-program are improved more than those of pre-program. 3. The 8th measurement of O`Leary plaque index is 3.27, which shows significant changes. 4. Satisfaction level with the program is 4.75(0.45), which shows that children are satisfied with the program. Conclusions: The paper shows that in order to maintain the oral health of children at community care centers, their habit formation and practice for the oral health is important. It also shows that cooperation among communities and public health centers is important to develop various oral health education programs like the program.

β-TCP 첨가량에 따른 생분해성 PLA/β-TCP 복합체의 생체활성과 기계적 특성 평가

문희정(Hee-Jung Moon),김설악(Seol-Ak Kim),김동애(Dong-Ae Kim) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3

본 연구는 PLA에 β-TCP를 첨가한 복합체의 생체활성도와 기계적 성질을 평가하고자 한다. 클로로프롬 용액에 24 시간 교반기를 이용해서 PLA와 β-TCP를 무게별로 0, 10, 30, 50 wt% 용해한 후 에탄올 용액에서 PLA/β-TCP 복합체를 추출 후 사출성형을 통해 다양한 기계적 평가를 위한 시편을 제작하였다. SBF 인체유사 체액에 1, 7, 30, 90 일 동안 침전하여 생체활성도를 평가하였다. 본 연구 결과 PLA/β-TCP 10-30 wt% 첨가한 실험군에서는 유의하게 강도가 증가하였으나 50 wt% 첨가한 실험군에서는 감소하였다. 결론적으로 β-TCP 30 wt% 이상 첨가하는 것은 사출성형 고분자 복합체의 기계적 특성이 개선되지 않는다. 표면 생체활성도는 90일 침전 후 표면 전체에 아파타이트 결정을 형성하였다. β-TCP는 표면특성과 기계적 성질 개선효과가 있음을 입증하였다. 향후 PLA/β-TCP 첨가량에 따른 효율성과 폭 넓은 물성 연구가 필요할 것으로 사료된다. The aim of the present study was to investigate the mechanical properties of melt-injected poly lactic acid (PLA) composites with β-tricalcium phosphate (β-TCP). The PLA mixed with calcined PLA/β-TCP powder to be contents of 0, 10, 30, 50 wt%, respectively, was dissolved in chloroform solvent under stirring for 24 h. Then the liquid mixtures were dropped into ethanol to extract solvent. After drying, the well-dispersed PLA/β-TCP composites were granulated and melt-injected to prepare specimens for various mechanical testing. PLA/β-TCP induced the precipitation of an apatite bone-mineral phase on the surface after immersion in a human simulated body fluid (SBF) for 90 days, showing in bioactivity. Mean various mechanical properties PLA/β-TCP composite were increased up to 10-30 wt% with significantly in part and composite were decreased 50 wt% of showing in mechanical properties. In conclusion, Over 30 wt% addition of β-TCP to PLA may be not advisable to improve the mechanical properties of melt-injected polymeric composites. Results indicated that β-TCP can be used considered as potential reinforcing agent for increasing mechanical properties for PLA. Therefore, it was suggest that the additional effects of β-TCP and research on a wide range of substances.

치위생과 학생의 구강건강 지식과 행동변화

이은경 ( Eun Kyoung Lee ),남용옥 ( Young Ok Nam ),김설악 ( Seol Ak Kim ),김민지 ( Min Ji Kim ),한동헌 ( Dong Hun Han ),김진범 ( Jin Bom Kim ) 한국치위생학회 2009 한국치위생학회지 Vol.9 No.4