Condylar positioning changes following unilateral sagittal split ramus osteotomy in patients with mandibular prognathism

Kim, Myung-In,Kim, Jun-Hwa,Jung, Seunggon,Park, Hong-Ju,Oh, Hee-Kyun,Ryu, Sun-Youl,Kook, Min-Suk Korean Association of Maxillofacial Plastic and Re 2015 Maxillofacial Plastic Reconstructive Surgery Vol.37 No.-

Background: This study was performed to evaluate three-dimensional positional change of the condyle using three-dimensional computed tomography (3D-CT) following unilateral sagittal split ramus osteotomy (USSRO) in patients with mandibular prognathism. Methods: This study examined two patients exhibiting skeletal class III malocclusion with facial asymmetry who underwent USSRO for a mandibular setback. 3D-CT was performed before surgery, immediately after surgery, and 6 months postoperatively. After creating 3D-CT images by using the In-vivo $5^{TM}$ program, the axial plane, coronal plane, and sagittal plane were configured. Three-dimensional positional changes from each plane to the condyle, axial condylar head axis angle (AHA), axial condylar head position (AHP), frontal condylar head axis angle (FHA), frontal condylar head position (FHP), sagittal condylar head axis angle (SHA), and sagittal condylar head position (SHP) of the two patients were measured before surgery, immediately after surgery, and 6 months postoperatively. Results: In the first patient, medial rotation of the operated condyle in AHA and anterior rotation in SHA were observed. There were no significant changes after surgery in AHP, FHP, and SHP after surgery. In the second patient, medial rotation of the operated condyle in AHA and lateral rotation of the operated condyle in FHA were observed. There were no significant changes in AHP, FHP, and SHP postoperatively. This indicates that in USSRO, postoperative movement of the condylar head is insignificant; however, medial rotation of the condylar head is possible. Although three-dimensional changes were observed, these were not clinically significant. Conclusions: The results of this study suggest that although three-dimensional changes in condylar head position are observed in patients post SSRO, there are no significant changes that would clinically affect the patient.

Adult invasive pneumococcal disease in the Republic of Korea: Risk medical conditions and mortality stratified by age group

Kim, Jong Hun,Baik, Seung Hee,Chun, Byung Chul,Song, Joon Young,Bae, In-Gyu,Kim, Hyo Youl,Kim, Dong-Min,Choi, Young Hwa,Choi, Won Suk,Jo, Yu Mi,Kwon, Hyun Hee,Jeong, Hye Won,Kim, Yeon-Sook,Kim, Jeong Elsevier 2018 INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES Vol.74 No.-

<P><B>Abstract</B></P> <P><B>Objectives</B></P> <P>This study aimed to characterize the risk factors for mortality in adult patients with invasive pneumococcal disease (IPD) stratified by age groups, after implementation of the national immunization program of 23-valent polysaccharide vaccine (PPSV23) for those aged ≥65 years in the Republic of Korea (ROK).</P> <P><B>Methods</B></P> <P>Clinical data and pneumococcal isolates from adult patients with IPD (≥18 years of age) were collected prospectively from 20 hospitals through the nationwide surveillance program from March 2013 to October 2015.</P> <P><B>Results</B></P> <P>A total of 319 patients with IPD were enrolled. Median age was 69 years. Overall in-hospital mortality was 34.2%: 17.1% in those aged 18–49 years, 23.7% in those aged 50–64 years, 33.0% in those aged 65–74 years, and 51.0% in those aged ≥75 years (<I>p<</I> 0.001). In particular, early death within 7days of hospitalization accounted for 60.6% (66/109). While old age (≥65 years), higher Pitt bacteremia score (≥4), and bacteremic pneumonia were independently associated with IPD mortality in all age groups, an additional mortality risk factor of immunocompromised status was identified for patients aged 50–64 years. PPSV23 serotypes accounted for 64.4% (122/189) of the pneumococcal isolates serotyped.</P> <P><B>Conclusions</B></P> <P>This study suggests that vaccine-type IPD continues to place a substantial burden on older adults in the ROK, necessitating an effective vaccination strategy for those at higher risk.</P> <P><B>Highlights</B></P> <P> <UL> <LI> National immunization of the elderly with the 23-valent polysaccharide vaccine (PPSV23) was implemented in Korea in 2013. </LI> <LI> Overall in-hospital mortality was 34.2% for adult invasive pneumococcal disease (IPD) and 51.0% for patients ≥75 years of age. </LI> <LI> Mortality risks were older age, higher bacteremia score, and immunocompromised status. </LI> <LI> An effective vaccination strategy for those at higher risk of IPD is needed. </LI> </UL> </P>

개의 비강 내 이행암종 증례

강화정,강상철,정지열,조숙희,노인순,이주명,정종태,김정훈,안민찬,배종희,김재훈,Kang, Hwa-Jung,Kang, Sang-Chul,Jung, Ji-Youl,Jo, Suk-Hee,Roh, In-Soon,Lee, Joo-Myung,Cheong, Jongtae,Kim, Jung-Hun,An, Min-Chan,Bae, Jong-Hee,Kim, Jae-Hoon 대한수의학회 2008 大韓獸醫學會誌 Vol.48 No.3

A 10-year-old female Yorkshire terrier with the clinical signs of nasal swelling, epistaxis and nasal discharge was presented to the Veterinary Teaching Hospital in the Cheju National University. Abnormal nasal mass was detected in physical examination and radiographic findings. After surgical excision, the sample of nasal mass was referred to Pathology Department of Veterinary Medicine. Grossly, the mass was soft, friable, and $2.5{\times}4cm$ cm in size. Histopathologically, the mass was composed of mediumsized non-keratinizing columnar to polyhedral cells arranged in anastomosing ribbon and large nest. It has complex in-folding of thick epithelial layers separated by fibrovascular septa. Tumor cells showed characteristic palisading arrangement of columnar cells, and perpendicularly distributed to the basement membrane. The cells had pale basophilic cytoplasm, oval nucleus and one or more nucleoli, and indistinct cellular border. Many tumor cell emboli were presented in lymphatics. Immunohistochemistry revealed that tumor cells were cytokeratin (CK) 19 and CK clone MNF116 positive and but CK7 and CK high molecular weight negative. Based on the gross, histopathologic, and immunohistochemical findings, the mass was diagnosed as transitional carcinoma in nasal cavity. In our best knowledge, this is the first report of transitional carcinoma originated from transitional zone of canine nasal cavity in Korea.

Quantitative Feasibility Evaluation of ¹¹C-Methionine Positron Emission Tomography Images in Gamma Knife Radiosurgery : Phantom-Based Study and Clinical Application

Lim, Sa-Hoe,Jung, Tae-Young,Jung, Shin,Kim, In-Young,Moon, Kyung-Sub,Kwon, Seong-Young,Jang, Woo-Youl The Korean Neurosurgical Society 2019 Journal of Korean neurosurgical society Vol.62 No.4

Objective : The functional information of $^{11}C$-methionine positron emission tomography (MET-PET) images can be applied for Gamma knife radiosurgery (GKR) and its image quality may affect defining the tumor. This study conducted the phantom-based evaluation for geometric accuracy and functional characteristic of diagnostic MET-PET image co-registered with stereotactic image in Leksell $GammaPlan^{(R)}$ (LGP) and also investigated clinical application of these images in metastatic brain tumors. Methods : Two types of cylindrical acrylic phantoms fabricated in-house were used for this study : the phantom with an array-shaped axial rod insert and the phantom with different sized tube indicators. The phantoms were mounted on the stereotactic frame and scanned using computed tomography (CT), magnetic resonance imaging (MRI), and PET system. Three-dimensional coordinate values on co-registered MET-PET images were compared with those on stereotactic CT image in LGP. MET uptake values of different sized indicators inside phantom were evaluated. We also evaluated the CT and MRI co-registered stereotactic MET-PET images with MR-enhancing volume and PET-metabolic tumor volume (MTV) in 14 metastatic brain tumors. Results : Imaging distortion of MET-PET was maintained stable at less than approximately 3% on mean value. There was no statistical difference in the geometric accuracy according to co-registered reference stereotactic images. In functional characteristic study for MET-PET image, the indicator on the lateral side of the phantom exhibited higher uptake than that on the medial side. This effect decreased as the size of the object increased. In 14 metastatic tumors, the median matching percentage between MR-enhancing volume and PET-MTV was 36.8% on PET/MR fusion images and 39.9% on PET/CT fusion images. Conclusion : The geometric accuracy of the diagnostic MET-PET co-registered with stereotactic MR in LGP is acceptable on phantom-based study. However, the MET-PET images could the limitations in providing exact stereotactic information in clinical study.

유아문해교육에 대한 교사의 인식과 실태 분석

양자인(Ja-In Yang),배율미(Youl-Mi Bae) 중앙대학교 한국교육문제연구소 2014 한국교육문제연구 Vol.32 No.1

본 연구의 목적은 유아문해교육에 대한 교사의 인식과 유아교육현장의 문해교육 실태를 조사하는 것이었다. 연구대상은 서울시, 경기도, 광주광역시, 부산광역시, 울산광역시, 전라도, 충청도 지역의 어린이집 및 유치원에 재직하고 있는 유아교사 373명이었다. 교사의 인식과 실태에 대한 자료를 수집하기 위해 설문지를 개발하여 사용하였다. 수집된 자료는 카이검증(χ²-test)을 통해 분석하였다. 연구결과, 문해교육 수행에 적절한 연령으로 대부분의 교사들이 만 3세부터 시작하는 것이 가장 적절하다고 인식하고 문해교육 수행 이유는 대부분의 교사들이 유아들의 흥미와 발달상 중요하다는 인식 때문인 것으로 나타났다. 문해교육과 가장 효과적으로 연계하여 가르칠 수 있는 영역으로는 누리과정 중 사회관계 영역을 가장 많이 인식하였다. 문해교육 교사연수 필요성에 대해서는 대부분의 교사들이 문해교육 교사연수가 필요하다고 인식하였다. 문해교육 수행 횟수와 시간에 대해 대부분의 교사들이 문해교육을 주 1∼2회, 하루 일과 중 항상 하는 것으로 가장 많이 응답하였고 문해교육 교재교구 구비 실태와 문해교육 자료준비 실태에 대해서는 보통이라고 응답하였다. 본 연구를 통해 유아교육자들이 유아문해교육을 보다 효과적으로 실행할 수 있도록 돕는 기초자료를 제공하고자 한다. The purpose of this study was to investigate teachers’ awareness and the status of literacy education for young children in the field of early childhood education. The subjects were 373 early childhood teachers at the care centers and preschools in Seoul, Gyeonggi-do, Gwangju, Busan, and Ulsan metropolitan cities, Jeolla-do, and Chungcheong-do. A survey was developed and used to collect data of teachers’ awareness and status of literacy education. Chi-square test (χ²-test) was used to analyze the collected data. The results were as follows. First, most teachers were aware that the most proper time to begin literacy education for young children was at the age of three; the importance of children’s interest and development was a reason for implementing literacy education in early childhood; a domain of social relationship among Nuri curriculum can be most effectively taught when connecting literacy education and the curriculum; and in-service teacher training related to literacy education was needed. Second, related to frequency and time of literacy education implementation, most teachers answered that they provided literacy education to their children 1-2 times per week and every time in daily routines; the statuses of teaching material requirements and preparation of general materials were neutral. This study provides fundamental information for helping early childhood educators to implement more effective literacy education for young children.

재난관리 단계별 도시방재 특성 분석 : 인천광역시 소방행정을 중심으로

이종열(Lee Jong Youl),최미옥(Choi Mee Ok),문인수(Moon In Soo) 한국지역사회학회 2010 지역사회연구 Vol.18 No.1

The purpose of this study is to suggest the advancement of urban disaster prevention. This study analyzed urban disaster characteristics focusing on the four-step process of disaster management namely, mitigation, preparedness, response and recovery, with detailed evaluation items set mainly to characterize urban disaster prevention and disaster management issues and to derive improvements in the advancement of disaster prevention measures. In doing so, focusing on fire administration in Incheon Metropolitan City, the literature was searched and in-depth interviews of actual managers were conducted. In conclusion, Incheon Metropolitan City has drawn operational problems and urban disaster prevention improvement. This study has suggested a focus on policies that Incheon Metropolitan City will try to promote. Through analysis, education training programs and efficient management organization in urban disaster prevention have been suggested.

구개부에 발생한 다형성선종의 치험례

이창진,김태열,김효언,김희광,전인성,윤규호 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.2

Pleomorphic adenoma is the most common of all salivary gland tumors, constituting over 50 per cent of all cases of tumors, and approximately 90 per cent of all benign salivary gland tumors. Since the term mixed tumor' was introduced by Broca for its dual origin of epithelial and mesenchymal elements, the term plemorphic adenoma suggested by Willis characterizes closely the unusual histologic pattern of the lesion. The parotid gland is the most common site but it may occur in any of the salivary glands. It is somewhat more frequent in women and in the fourth to sixth decades, but they are also relatively common in young adult and have been known to occur in children. Treatment of choice is surgical excision. Adequate surgery with safe margin reduce its recurrence rate. We represent a case of pleomorphic adenoma with literature review in 65-year old male occured in the palate. The lesion was successfully treated by surgical excision.

OTT 서비스의 이용 동기와 혁신성이 콘텐츠 중독에 미치는 영향 - 미디어 인게이지먼트 매개효과를 중심으로 -

윤칠상 ( Yoon Chil Sang ),김인재 ( Kim In Jae ),성열홍 ( Sung Youl Hong ) 한국상품문화디자인학회(구 한국패키지디자인학회) 2021 상품문화디자인학연구 Vol.65 No.-

최근 OTT 서비스가 급격히 성장하고 있다. 이는 OTT 서비스가 다양한 장르와 콘텐츠를 원하는 시간과 장소에서 편리한 디바이스로 적극적인 시청이 가능하기 때문이다. 그러나 과다시청으로 콘텐츠에 대한 의존성이 커지고 콘텐츠 시청을 통제하지 못해 일상생활에서 심각한 장애가 초래되고 있다. 이에 본 연구는 OTT 서비스의 이용 동기와 혁신성이 콘텐츠 중독에 미치는 영향 관계를 살펴보고, 이러한 과정에서 이용자들의 미디어 인게이지먼트가 콘텐츠 중독에 매개적 역할을 하는 지에 대해 실증적으로 검증해보고자 진행되었다. 이를 위해 표본으로 남·여 총 215명의 설문조사 데이터를 바탕으로 연구를 진행하였다. 연구 결과는 다음과 같다. OTT 서비스의 이용 동기에서 콘텐츠 중독에 유의미한 영향을 미치는 요인은 ‘시간 때우기·습관’, ‘회피’로 확인되었으며, 이용자들의 혁신성도 유의미한 영향을 미치는 것으로 확인되었다. 또한, 미디어 인 게이지먼트가 콘텐츠 중독에 유의미한 영향을 미치는 것으로 확인됐으며, OTT 서비스의 이용 동기가 콘텐츠 중독에 미치는 영향에 있어 미디어 인게이지먼트의 매개 역할을 하는 요인은 '시간 때우기·습관'과 '회피'인 것으로 확인되었다. 마찬가지로 이용자들의 혁신성이 콘텐츠 중독에 미치는 영향에 있어 미디어 인게이지먼트가 그 매개 역할을 하는 것으로 확인되었다. 본 연구가 OTT 콘텐츠 중독 예방과 마케팅 전략 수립에 유용한 기초자료가 되기를 기대하며, 후속 연구로 코로나 19 관련 OTT 콘텐츠 중독에 대한 깊이 있는 연구를 기대한다. Recently, OTT services are growing rapidly. This is because the OTT service enables active viewing of various genres and contents at a desired time and place with a convenient device. However, due to excessive viewing, the dependence on the content increases, and the inability to control the viewing of the content causes serious obstacles in daily life. Therefore, this study was conducted to examine the relationship of the influence of OTT service use motivation and innovation on content addiction, and to empirically verify whether users' media engagement plays a mediating role in content addiction in this process. . To this end, a study was conducted based on the survey data of a total of 215 men and women as a sample. The research results are as follows. The factors that have a significant influence on content addiction in the motive of using OTT service were identified as ‘time-filling/habit’ and ‘avoidance’, and the innovativeness of users was also found to have a significant effect. In addition, it is confirmed that media engagement has a significant effect on content addiction, and the factors that play a mediating role of media engagement in the influence of OTT service use motives on content addiction are 'time-killing/habits' and It was confirmed to be 'avoidance'. Likewise, it was confirmed that media engagement plays a mediating role in the influence of users' innovation on content addiction. We hope that this study will be useful basic data for OTT content addiction prevention and marketing strategy establishment, and as a follow-up study, we look forward to in-depth research on OTT content addiction related to Corona 19.

Recurred Intracranial Meningioma: A Retrospective Analysis for Treatment Outcome and Prognostic Factor

( Hyun-seung Ryu ),( Kyung-sub Moon ),( Kyung-hwa Lee ),( Woo-youl Jang ),( Tae-young Jung ),( In-young Kim ),( Shin Jung ) 대한뇌종양학회·대한신경종양학회·대한소아뇌종양학회 2017 Brain Tumor Research and Treatment Vol.5 No.2

Background In this study, we aimed to compare repeated resection and radiation treatment, such as Gamma knife radiosurgery (GKRS) or conventional radiotherapy (RT), and investigate the factors in-fluencing treatment outcome, including overall survival (OS), progression-free survival (PFS), and complication rates. Methods We retrospectively reviewed 67 cases of recurred intracranial meningiomas (repeated resection: 36 cases, radiation treatment: 31 cases) with 56 months of the median follow-up duration (range, 13-294 months). Results The incidence of death rate was 29.9% over follow-up period after treatment for re-curred meningiomas (20/67). As independent predictable factors for OS, benign pathology [hazard ratio (HR) 0.132, 95% confidence interval (CI) 0.048-0.362, p<0.001] and tumor size <3 cm (HR 0.167, 95% CI 0.061-0.452, p<0.001) were significantly associated with a longer OS. The incidence of pro-gression rate was 23.9% (16/67). Only treatment modality was important for PFS as an independent predictable factor (GKRS/RT vs. open resection; HR 0.117, 95% CI 0.027-0.518, p<0.005). The com-plication rate was 14.9% in our study (10/67). Larger tumor size (≥3 cm, HR 0.060, 95% CI 0.007- 0.509, p=0.010) was significant as an independent prognostic factor for development of complications. Although treatment modality was not included for multivariate analysis, it should be considered as a predictable factor for complications (p=0.001 in univariate analysis). Conclusion The role of repeated resection is questionable for recurred intracranial meningiomas, considering high progression and complication rates. Frequent and regular imaging follow-up is re-quired to detect recurred tumor sized as small as possible, and radiation treatment can be a preferred treatment.

골격성 Ⅲ급 부정교합 환자에서 하악골상행지 시상분할골절절단술후 상순과 하순의 연조직 변화에 관한 연구

박관수,김태열,김희광,정정권,윤규호,전인성 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6

Purpose : The prediction of profile change as a result of orthognathic surgery remains a problem during preoperative planning because of the difference relative movements of the hard and soft tissues. This study was performed to predict the changes o( upper and lower lips after BSSRO with non-rigid fixation Material and Methods : 15 patients wish skeletal Class III malocclusion treated by bilateral sagittal split ramus osteotomy(BSSRO) and mandibular setback were selected for analysis. Cephalometric data of presurgery and postsurgery 12 months were used. Wilcoxon signed rank test, calculation of Spearmans correlation rho and simple regression analysis were performed to predict the relations between hard tissue changes and soft tissue changes. Results : The horizontal change of hard tissue Pogonion and those of lower lips showed high correlation and the ratios were from 71% to 84%. The horizontal change of hard tissue Pogonion and those of chin showed high correlation and the ratios were from 90% to 92%. The horizontal change of hard tissue Pogonion and those of upper lips showed moderate correlation and the ratios were from 7% to 18%. Conclusion : This study suggests that the changes of lower lips are highly affected by the hard tissue change of mandible and those of upper lips are moderately affected. In comparison with other studies, no significant differences were found among the fixation methods.