Background: Hodgkin's lymphoma (HL) constitutes 10%–20% of all malignant lymphomas and has a high cure rate (5-year survival, around 90%). Recently, interest has increased concerning preventing secondary complications (secondary cancer, endocrine disorders) in long-term survivors. We aimed to study the epidemiologic features and therapeutic outcomes of HL in children, adolescents, and young adults in Korea. Methods: We performed a multicenter, retrospective study of 224 patients aged < 25 years diagnosed with HL at 22 participating institutes in Korea from January 2007 to August 2016. Results: A higher percentage of males was diagnosed at a younger age. Nodular sclerosis histopathological HL subtype was most common, followed by mixed cellularity subtype.Eighty-one (36.2%), 101 (45.1%), and 42 (18.8%) patients were classified into low, intermediate, and high-risk groups, respectively. Doxorubicin, bleomycin, vinblastine, dacarbazine was the most common protocol (n = 102, 45.5%). Event-free survival rate was 86.0% ± 2.4%, while five-year overall survival (OS) rate was 96.1% ± 1.4%: 98.7% ± 1.3%, 97.7% ± 1.6%, and 86.5% ± 5.6% in the low, intermediate, and high-risk groups, respectively (P = 0.021). Five-year OS was worse in patients with B-symptoms, stage IV disease, highrisk, splenic involvement, extra-nodal lymphoma, and elevated lactate dehydrogenase level.In multivariate analysis, B-symptoms and extra-nodal involvement were prognostic factors for poor OS. Late complications of endocrine disorders and secondary malignancy were observed in 17 and 6 patients, respectively. Conclusion This is the first study on the epidemiology and treatment outcomes of HL in children, adolescents, and young adults in Korea. Future prospective studies are indicated to develop therapies that minimize treatment toxicity while maximizing cure rates in children, adolescents, and young adults with HL.

PURPOSE: The aim of this study was to investigate epidemiology, clinical characteristics and sex differences of patients with lung cancer using nationwide registry in Korea. MATERIALS AND METHODS: The Korean Association for Lung Cancer developed a registry in cooperation with the Korean Central Cancer Registry, and surveyed about 10% of lung cancer cases. For this first survey of cases diagnosed in 2014, cases were selected through a systematic sampling method. RESULTS: Total 2,621 lung cancer patients were surveyed, and the median patient age was 70 years. During the study period, adenocarcinoma was the most frequent histologic type, the proportion of female patients was 28.4%, and women had a better prognosis (median survival, not reached vs. 13 months; p<0.001) than did men for non-small cell lung cancer. The proportion of never-smokers was 36.4%, and never-smoking was more prevalent in women than in men (87.5 vs. 16.0%, p<0.001). Epidermal growth factor receptor (EGFR) mutations were found in 36.8% of stage IV adenocarcinoma patients, and higher in female compared to male patients (51.2 vs. 26.6%, p<0.001). In addition, patients with EGFR mutation showed better survival (median survival, 18 vs. 8 months; p<0.001) than patients without EGFR mutation in these patients. CONCLUSION: This is the first survey to gather unbiased nationwide lung cancer statistics in Korea. More than one-third of lung cancer patients had no smoking history. Female had a high proportion of non-smoker, more adenocarcinoma with EGFR mutation and generally better prognosis than male.
Adenocarcinoma ; Carcinoma, Non-Small-Cell Lung ; Epidemiology ; Female ; Humans ; Korea ; Lung Neoplasms ; Lung ; Male ; Methods ; Prognosis ; Receptor, Epidermal Growth Factor ; Sex Characteristics ; Smoke ; Smoking

Since after 2006 when the first edition of practice guidelines for gynecologic oncologic cancer treatment was released, the Korean Society of Gynecologic Oncology (KSGO) has published the following editions on a regular basis to suggest the best possible standard care considering updated scientific evidence as well as medical environment including insurance coverage. The Guidelines Revision Committee was summoned to revise the second edition of KSGO practice guidelines, which was published in July 2010, and develop the third edition. The current guidelines cover strategies for diagnosis and treatment of primary and recurrent ovarian cancer. In this edition, we introduced an advanced format based on evidence-based medicine, collecting up-to-date data mainly from MEDLINE, EMBASE, and Cochrane Library CENTRAL, and conducting a meta-analysis with systematic review. Eight key questions were raised by the committee members. For every key question, recommendations were developed by the consensus meetings and provided with evidence level and strength of the recommendation.
Committee Membership ; Consensus* ; Diagnosis ; Drug Therapy ; Evidence-Based Medicine ; Insurance Coverage ; Korea* ; Ovarian Neoplasms*

PURPOSE: The purpose of this study was to examine students' perception of the educational environment of medical schools in Korea. METHODS: A total of 9,096 of 12,035 students (75.6%) responded to our questionnaire. This study was conducted at the end of the 2013 academic year using the Dundee Ready Education Environment Measure (DREEM) at 40 medical schools in Korea. DREEM comprises five domains: students' perceptions of learning (SPL); students' perceptions of teachers (SPT); students' academic self-perceptions; students' perceptions of atmosphere; and students' social self-perception. The data were analyzed using descriptive statistics, independent t-test, and one-way analysis of variance. RESULTS: The overall mean DREEM score was 113.97 (of 200), and the scores for the 40 medical schools ranged from 100.24 to 134.32. The overall mean and domains scores of the DREEM differed significantly between educational systems, grades, genders, and academic achievement levels. Graduate-level medical students had higher scores for the DREEM and its five domains than undergraduate medical students. The scores were lowest in second-year students (mean, 111.80). Male students' perceptions were significantly higher than those of female students except for SPL and SPT. High academic achievers' perceptions were also greater versus low academic achievers. CONCLUSION: Students' perceptions of their educational environment are positive in Korea. The learning environment should be evaluated by curriculum planners and administrators of medical schools to improve its quality.
Achievement ; *Attitude ; *Education, Medical, Undergraduate ; Female ; Humans ; Male ; Perception ; Republic of Korea ; *Schools, Medical ; *Students, Medical ; Surveys and Questionnaires

No abstract available.

The publisher wishes to apologize for incorrectly displaying the author (Seok Beom Gwon) name. We correct his name from Seok Beom Gwon to Seok Beom Kwon.

BACKGROUND AND PURPOSE: Charcot-Marie-Tooth disease (CMT) type 1A (CMT1A) is the demyelinating form of CMT that is significantly associated with PMP22 duplication. Some studies have found that the disease-related disabilities of these patients are correlated with their compound muscle action potentials (CMAPs), while others have suggested that they are related to the nerve conduction velocities. In the present study, we investigated the correlations between the disease-related disabilities and the electrophysiological values in a large cohort of Korean CMT1A patients. METHODS: We analyzed 167 CMT1A patients of Korean origin with PMP22 duplication using clinical and electrophysiological assessments, including the CMT neuropathy score and the functional disability scale. RESULTS: Clinical motor disabilities were significantly correlated with the CMAPs but not the motor nerve conduction velocities (MNCVs). Moreover, the observed sensory impairments matched the corresponding reductions in the sensory nerve action potentials (SNAPs) but not with slowing of the sensory nerve conduction velocities (SNCVs). In addition, CMAPs were strongly correlated with the disease duration but not with the age at onset. The terminal latency index did not differ between CMT1A patients and healthy controls. CONCLUSIONS: In CMT1A patients, disease-related disabilities such as muscle wasting and sensory impairment were strongly correlated with CMAPs and SNAPs but not with the MNCVs or SNCVs. Therefore, we suggest that the clinical disabilities of CMT patients are determined by the extent of axonal dysfunction.
Action Potentials ; Axons ; Charcot-Marie-Tooth Disease ; Cohort Studies ; Humans ; Muscles ; Neural Conduction

Aplastic anemia (AA) is a rare complication of liver transplantation. The causes of AA have not yet been identified, and optimal treatment for AA after liver transplantation has not been firmly established. We experienced two cases of AA accompanied with fulminant hepatitis among 157 pediatric recipients (1.3%) and among 17 recipients of Korean Network of Organ Sharing (KONOS) status 1 (11.8%). The patients were a 16-year-old girl and a 3-year-old boy who had jaundice and lethargy due to non-A, non-B, non-C fulminant hepatitis. The girl underwent split liver transplantation involving the liver of a 24-year-old man, and the boy underwent an emergency living donor liver transplantation with a liver obtained from his 16-year-old cousin. Each transplantation procedure was uneventful. However, both patients were diagnosed with AA caused by thrombocytopenia and neutropenia at 140 and 26 days, respectively, after liver transplantation. The girl recovered completely after undergoing bone marrow transplantation and was followed up for 70 months. However, the boy was conservatively treated because of the development of hyperbilirubinemia and pyrexia. He died of multi-organ failure 74 days after liver transplantation. AA is not a rare complication of pediatric liver transplantation for fulminant hepatic failure. Therefore, AA must be suspected in pediatric cases of cytopenia even after liver transplantation. Our findings indicate bone marrow transplantation is the treatment of choice for AA even in cases where AA develops after liver transplantation.
Adolescent ; Anemia, Aplastic ; Bone Marrow Transplantation ; Emergencies ; Fever ; Hepatitis ; Humans ; Hyperbilirubinemia ; Jaundice ; Lethargy ; Liver ; Liver Failure, Acute ; Liver Transplantation ; Living Donors ; Neutropenia ; Preschool Child ; Thrombocytopenia ; Transplants ; Young Adult

Aplastic anemia (AA) is a rare complication of liver transplantation. The causes of AA have not yet been identified, and optimal treatment for AA after liver transplantation has not been firmly established. We experienced two cases of AA accompanied with fulminant hepatitis among 157 pediatric recipients (1.3%) and among 17 recipients of Korean Network of Organ Sharing (KONOS) status 1 (11.8%). The patients were a 16-year-old girl and a 3-year-old boy who had jaundice and lethargy due to non-A, non-B, non-C fulminant hepatitis. The girl underwent split liver transplantation involving the liver of a 24-year-old man, and the boy underwent an emergency living donor liver transplantation with a liver obtained from his 16-year-old cousin. Each transplantation procedure was uneventful. However, both patients were diagnosed with AA caused by thrombocytopenia and neutropenia at 140 and 26 days, respectively, after liver transplantation. The girl recovered completely after undergoing bone marrow transplantation and was followed up for 70 months. However, the boy was conservatively treated because of the development of hyperbilirubinemia and pyrexia. He died of multi-organ failure 74 days after liver transplantation. AA is not a rare complication of pediatric liver transplantation for fulminant hepatic failure. Therefore, AA must be suspected in pediatric cases of cytopenia even after liver transplantation. Our findings indicate bone marrow transplantation is the treatment of choice for AA even in cases where AA develops after liver transplantation.
Adolescent ; Anemia, Aplastic ; Bone Marrow Transplantation ; Emergencies ; Fever ; Hepatitis ; Humans ; Hyperbilirubinemia ; Jaundice ; Lethargy ; Liver ; Liver Failure, Acute ; Liver Transplantation ; Living Donors ; Neutropenia ; Preschool Child ; Thrombocytopenia ; Transplants ; Young Adult