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The prediction of the tooth size in the mixed dentition for Korean
Moon, Sung-Hwan,Kim, Seong-Oh,Yu, Hyung-Seong,Choi, Byung-Jai,Choi, Hyung-Jun,Lee, Jae-Ho 大韓小兒齒科學會 2006 大韓小兒齒科學會誌 Vol.33 No.2
이번 연구의 목적은 혼합치열기 아동에서 미맹출된 견치와 소구치의 크기를 예측하는데 있어서 한국인에 맞는 방정식을 만들기 위함이다. 미맹출 치아의 크기를 예측하는 것은 혼합치열기 교정 진단과 치료계획 수립에 있어서 매우 중요하다. 미맹출된 견치와 소구치 크기를 예측하는 방법은 몇가지가 있지만 그중에서도 가장 흔하게 쓰이는 것이 모이어의 예측표와 다나카와 존스턴의 방정식이 있다. 하지만 그것들은 백인을 위해서 제작된 것이고 치아 크기는 인종에 따라서 다르다고 알려져 있다. 이번 연구에서는 치아크기를 측정하여 하악 영구 절치의 크기 합과 견치 및 소구치의 크기 합 사이의 상관관계를 구하고 회귀방정식을 이용해서 한국인에 맞는 예측표를 만들었다. 연세대학교 치과대학에 재학중인 178명의 한국 학생(남 108명, 여 70명, 평균연령 21.63)을 대상으로 실험하였다. 영구치의 근원심 폭경을 석고모형상에서 calipers를 이용해서 측정하였다. 성별간의 치아 크기는 차이가 있었다(p<0.05). Correlation coefficient는 0.57에서 0.64의 범위였고, standard errors of the estimates 는 여성에서 0.6으로써 남성보다 우수하였다. r^(2)값은 0.27에서 0.41의 범위를 나타내었다. Estimating the size of unerupted teeth is an essential aspect of orthodontic diagnosis and treatment planning in the mixed dentition. Several methods were introduced and used for the prediction. The most common methods among these would be Moyers probability chart and Tanaka and Johnston equations. These are currently used widely, but they were developed for Caucasians. Because there are clear racial differences in teeth size, the objectives of this study were to produce correlation coefficients between the combined mesiodistal widths of the permanent mandibular incisors and those of the canines and premolars for each quadrant, and prediction tables with regression equations, specifically for Korean. 178 young adults (70 women, 108 men, mean age 21.63 years) were selected from the College of Dentistry, Yonsei University, Seoul, Korea. The mesiodistal crown diameters of the permanent teeth were measured with calipers. Significant sexual dimorphism was found in tooth sizes. The correlation coefficients between the total mesiodistal width of the mandibular permanent incisors and those of the maxillary and mandibular canines and premolars were found to be between 0.52 and 0.64. The standard error of the estimatation was better (0.60) for women and the r^(2) values ranged from 0.27 to 0.41 for both sexes, Prediction tables were prepared for Korean. This study showed larger canine and premolar diameters than Tanaka and Johnston's and Moyers' studies which might be due to the racial differences. Further investigations with a larger sample size will be needed for more representative data on the Korean population.
Ischemic Necrosis of the Gastric Remnant without Splenic Infarction Following Subtotal Gastrectomy
Hwan Hee Park,Hee Sung Lee,Ju Seok Kim,Sun Hyung Kang,Hee Seok Moon,Jae Kyu Sung,Hyun Yong Jeong,Ji Young Sul 대한소화기내시경학회 2018 Clinical Endoscopy Vol.51 No.3
Gastric remnant necrosis after a subtotal gastrectomy is an extremely uncommon complication due to the rich vascular supply of thestomach. Despite its rareness, it must be carefully addressed considering the significant mortality rate associated with this condition. Patientsvulnerable to ischemic vascular disease in particular need closer attention and should be treated more cautiously. When gastric remnantnecrosis is suspected, an urgent endoscopic examination must be performed. We report a case of gastric remnant necrosis following a subtotalgastrectomy and discuss possible risk factors associated with this complication.
( Sang Jung Kim ),( Hyung Joon Kim ),( Hong Ju Moon ),( Jang Sik Mun ),( Hyun Woong Lee ),( Chang Hwan Choi ),( Jung Uk Kim ),( Jae Hyuk Do ),( Jae Kyu Kim ),( Sae Kyung Chang ),( Ki Young Yoo ) 대한소화기학회 2007 SIDDS Vol.9 No.-
Background/Aims: Chronic hepatitis C (CHC) is a major comorbidity in patient with hemophilia. In this prospective study, the efficacy and tolerability of the combination therapy with peginterferon (PegIFN) alpha-2a plus ribavirin was evaluated in 42 hemophiliacs with CHC. Methods: A total of 42 CHC Patients with hemophilia were treated with PegIFN alpha-2a (180 mcg/week) and ribavir in (800-1,200 mg/day) for 24 (genotype 2, N=11) or 48 weeks (genotype 1, N=31). The mean duration of treatment was 24 (6-28) weeks. Rapid virologic response (RVR), early virologic response (EVR) were defined as undetectable HCV RNA 4, 12 week during treatment period. Results: Charateristies of the 42 patient included in this study are shown in the table 1. Only 1 patient (2%) was withdrawn from treatment due to neutropenia with infection. In 41 patients who treated more than 4 weeks, RVR was achieved in 20 patients (9/31, genotype1, 11/11, genotype 2). All 37 patients treated more than 12 weeks achieved EVR. 8 patients with genotype 2 (19%) completed the treatment schedule, and end-of treatment response (ETR) was achieved in all of them. There was no severe event for bleeding. Hematologic adverse events were neutropenia (36%), anemia (7%) and thrombocytopenia (2%). Dose reduction of PegIFN was necessary in 9 patients (21%) (6 neutropenia, 1 thromobocytopenia, 1 fatigue and 1 headache) On the other hand, it was 5 patients (12%) for ribavirin (4 anemia, 1 headache) Observed adverse events are shown in Table 2. Conclusions: PegIFN and ribavirin treatment is effective in CHC patients with hemophilia compared to data previously reported in non-hemophilic patients. In addition, there was no severe adverse event.
Sang-Hyun Kang,Shin Hwang,Chul-Soo Ahn,Ki-Hun Kim,Deok-Bog Moon,Tae-Yong Ha,Gi-Won Song,Dong-Hwan Jung,Gil-Chun Park,Jung-Man Namgoong,Young-In Yoon,Hui-Dong Cho,Jae-Hyun Kwon,Yong-Kyu Chung,Jin Uk Ch 대한이식학회 2020 Korean Journal of Transplantation Vol.34 No.1
Background: To understand the changing demands and recent trends in the indications for living donor liver transplantation (LDLT), the present study aimed to analyze the indications for LDLT performed in a high-volume transplantation center over 10 years. Methods: The liver transplantation database at our institution was searched to identify patients who underwent LDLT during a 10-year period from January 2008 to December 2017. The study subjects (n=3,145) were divided into two groups: adult patients (n=3,019, 92.7%) and pediatric patients (n=126, 3.9%). Results: In the adult recipients, the primary diagnoses were hepatitis B virus (HBV)- associated liver cirrhosis (n=1,898, 62.9%), alcoholic liver disease (n=482, 16.0%), hepatitis C virus-associated cirrhosis (n=203, 6.7%), acute liver failure (n=127, n=4.2%), and other diseases (n=157, 5.2%). The mean Model for End-Stage Liver Disease score was 15.6±8.8 (range, 6–40). The proportion of patients with HBV-associated liver disease gradually decreased, but the proportion of those with alcoholic liver disease increased. Hepatocellular carcinoma (HCC) was diagnosed in 1,467 patients (48.6%). The mean proportion of patients with HCC was 63.1% among those with HBVassociated liver disease. In pediatric recipients, the primary diagnoses were biliary atresia (n=51, 40.5%), liver failure of various causes (n=37, 29.4%), metabolic disease (n=22, 17.5%), hepatoblastoma (n=12, 9.5%), and infectious diseases (n=4, 3.2%). Conclusions: Our results showed that there were some significant changes in the indications of LDLT. We believe that our results may reflect the real changes in the indications of LDLT and they will be useful for predicting further changes in the future.