1.Acute Disseminated Encephalomyelitis Following Pneumococcal Vaccination.
Hyun Seung GWAK ; Seong Ho KOH ; Kyu Yong LEE
Journal of the Korean Neurological Association 2016;34(3):256-258
No abstract available.
Encephalomyelitis, Acute Disseminated*
;
Vaccination*
2.Clinical Features and Prognostic Effects of Behavioral and Psychological Symptoms in Patients with Amyotrophic Lateral Sclerosis.
Seong Il OH ; Hee Jin KIM ; Aram PARK ; Ki Wook OH ; Hyun Seung GWAK ; Seung Hyun KIM
Dementia and Neurocognitive Disorders 2014;13(1):1-6
BACKGROUND: The evaluation of behavioral and psychological symptoms (BPS) in ALS is important because its existence may serve as a prognostic factor and suggest a shared pathology with frontotemporal dementia (FTD) in ALS. In this study, we sought to identify the prevalence of the BPS of ALS patients and evaluate its relationship with the clinical profiles and survival of ALS patients. METHODS: One hundred sixty-six patients were enrolled in a cross-sectional cohort analysis from September 2008 to February 2012. All patients had sporadic ALS without a genetic mutation and were collected clinical profiles. The t-test and chi-square test were used to assess differences in the clinical characteristics and caregiver-administered neuropsychiatric inventory (CGA-NPI) scores. The Kaplan-Meier method and Cox proportional hazard model were used for the survival analysis. RESULTS: Forty-two patients had clinically significant BPS (42/166, 25.3%). ALS patients with BPS had worse clinical dementia rating (CDR), ALS Functional Rating Scale-Revised (ALSFRS-R) score, and progression rate of disease than those without BPS. Among CGA-NPI subscales, depression, irritability, apathy, and agitation were higher prevalent than the others. There was a trend for ALS patients with BPS having short survival time than those without BPS in the Kaplan-Meier analysis (p=0.006). However, in the Cox proportional hazard model, BPS in ALS patients were not associated with poor survival. CONCLUSION: These results support the presence of an overlapping spectrum between ALS and FTD and emphasize the importance of neuropsychiatric evaluations in ALS. Although the association between BPS and prognosis are not explained clearly, these results could be used to stratify ALS patients according to neuropsychiatric symptoms and help investigators to evaluate the BPS in ALS patients.
Amyotrophic Lateral Sclerosis*
;
Apathy
;
Cohort Studies
;
Dementia
;
Depression
;
Dihydroergotamine
;
Frontotemporal Dementia
;
Humans
;
Kaplan-Meier Estimate
;
Pathology
;
Prevalence
;
Prognosis
;
Proportional Hazards Models
;
Research Personnel
3.The Hemodynamic Changes of Alcohol Sclerotherapy in Patients with Congenital Peripheral Arteriovenous Malformation.
Mi Sook GWAK ; Hyun Sung CHO ; Yu Hong KIM ; Seung Jae KIM ; Ji Ae KIM ; Sang Min LEE ; Ik Soo CHUNG
Korean Journal of Anesthesiology 1998;35(6):1161-1168
BACKGROUND: Arteriovenous malformations (AVMs) are increasingly treated by radiologists using various embolic materials. Because of pain and significant hemodynamic changes that may be associated with this treatment, anesthesiologists are frequently asked to provide anesthesia and supportive care. We evaluated the hemodynamic changes that occurred after absolute alcohol embolization. METHODS: Fourteen patients between 15 and 50 years of age who had arteriovenous malformation were included in this study. 2 to 4 ml of alcohol was injected each time. The hemodynamic parameters were measured before alcohol injection (control) and after 1st to 10th alcohol injection. RESULTS: Blood pressure, heart rate, and cardiac output were significantly increased after 1st to 10th alcohol injection compared with control value. Central venous pressure, pulmonary capillary wedge pressure and systemic vascular resistance were not significantly changed. But pulmonary vascular resistance was significantly increased after 9th and 10th alcohol injection. Systolic pulmonary artery pressure was significantly increased after 4th, 8th, 9th and 10th alcohol injection. CONCLUSIONS: Bolus injection of absolute ethyl alcohol induces short-term significant increases in blood pressure, heart rate and cardiac output probably by severe pain and sympathetic activation that appear to be centrally mediated. The underlying mechanism of cardiovascular event and other systemic effects of intravascular ethanol in this setting need further study.
Anesthesia
;
Arteriovenous Malformations*
;
Blood Pressure
;
Cardiac Output
;
Central Venous Pressure
;
Ethanol
;
Heart Rate
;
Hemodynamics*
;
Humans
;
Pulmonary Artery
;
Pulmonary Wedge Pressure
;
Sclerotherapy*
;
Vascular Resistance
4.The relationship between self esteem and physical health.
Hyun Joo JUNG ; Woong Chul SHIN ; Tae Jin PARK ; Byung Sung KIM ; Ean Ju LIM ; Seung Woong GWAK ; Ka Young LEE
Journal of the Korean Academy of Family Medicine 1997;18(2):136-146
BACKGROUND: Psychogenic and physical aspects of health is interesting issue in the field of family medicine. We intended to study the relationship between physical illness and symptoms with self esteem, and hoped to understand disease in general behavioral context. METHODS: We selected 124 persons who visited family medicine OPD in Paik Hospital from August 3 to August 20, 1995, and answered questionnaire frankly. The qestionnaire consisted of Rosenberg self esteem scale as paremeter of self esteem and Hopkins symptom check list as parameter of physical health. The third author analyzed the medical record and rated the severity of disease as grade I-VII, for another parameter of physical health. The other factors-age, sex, marriage, education level, family, income-were analyzed by self esteem. RESULTS: We divided the study population into two groups, low self esteem group and high self esteem group. In low self esteem group, the persons complain more symptoms in Hopkins symptom check list significantly(P=0.009). Those who were highly educated had significantly higher self esteem(P=0.047). The severity of disease, sex, age, marriage, type of family, income showed no significant relationship with self esteem. CONCLUSIONS: The education level was the factor that influence self esteem. The person of low self esteem complains more symptoms. So we should consider self esteem in medical practice.
Education
;
Hope
;
Humans
;
Marriage
;
Medical Records
;
Self Concept*
;
Surveys and Questionnaires
5.The relationship between self esteem and physical health.
Hyun Joo JUNG ; Woong Chul SHIN ; Tae Jin PARK ; Byung Sung KIM ; Ean Ju LIM ; Seung Woong GWAK ; Ka Young LEE
Journal of the Korean Academy of Family Medicine 1997;18(2):136-146
BACKGROUND: Psychogenic and physical aspects of health is interesting issue in the field of family medicine. We intended to study the relationship between physical illness and symptoms with self esteem, and hoped to understand disease in general behavioral context. METHODS: We selected 124 persons who visited family medicine OPD in Paik Hospital from August 3 to August 20, 1995, and answered questionnaire frankly. The qestionnaire consisted of Rosenberg self esteem scale as paremeter of self esteem and Hopkins symptom check list as parameter of physical health. The third author analyzed the medical record and rated the severity of disease as grade I-VII, for another parameter of physical health. The other factors-age, sex, marriage, education level, family, income-were analyzed by self esteem. RESULTS: We divided the study population into two groups, low self esteem group and high self esteem group. In low self esteem group, the persons complain more symptoms in Hopkins symptom check list significantly(P=0.009). Those who were highly educated had significantly higher self esteem(P=0.047). The severity of disease, sex, age, marriage, type of family, income showed no significant relationship with self esteem. CONCLUSIONS: The education level was the factor that influence self esteem. The person of low self esteem complains more symptoms. So we should consider self esteem in medical practice.
Education
;
Hope
;
Humans
;
Marriage
;
Medical Records
;
Self Concept*
;
Surveys and Questionnaires
6.Recent Advancements of Treatment for Leptomeningeal Carcinomatosis.
Ho Shin GWAK ; Sang Hyun LEE ; Weon Seo PARK ; Sang Hoon SHIN ; Heon YOO ; Seung Hoon LEE
Journal of Korean Neurosurgical Society 2015;58(1):1-8
Treatment of Leptomeningeal carcinomatosis (LMC) from solid cancers has not advanced noticeably since the introduction of intra-cerebrospinal fluid (CSF) chemotherapy in the 1970's. The marginal survival benefit and difficulty of intrathecal chemotherapy injection has hindered its wide spread use. Even after the introduction of intraventricular chemotherapy with Ommaya reservoir, frequent development of CSF flow disturbance, manifested as increased intracranial pressure (ICP), made injected drug to be distributed unevenly and thus, the therapy became ineffective. Systemic chemotherapy for LMC has been limited as effective CSF concentration can hardly be achieved except high dose methotrexate (MTX) intravenous administration. However, the introduction of small molecular weight target inhibitors for primary cancer treatment has changed the old concept of 'blood-brain barrier' as the ultimate barrier to systemically administered drugs. Conventional oral administration achieves an effective concentration at the nanomolar level. Furthermore, many studies report that a combined treatment of target inhibitor and intra-CSF chemotherapy significantly prolongs patient survival. Ventriculolumbar perfusion (VLP) chemotherapy has sought to increase drug delivery to the subarachnoid CSF space even in patients with disturbed CSF flow. Recently authors performed phase 1 and 2 clinical trial of VLP chemotherapy with MTX, and 3/4th of patients with increased ICP got controlled ICP and the survival was prolonged. Further trials are required with newly available drugs for CSF chemotherapy. Additionally, new LMC biologic/pharmacodynamic markers for early diagnosis and monitoring of the treatment response are to be identified with the help of advanced molecular biology techniques.
Administration, Intravenous
;
Administration, Oral
;
Cerebrospinal Fluid
;
Drug Therapy
;
Early Diagnosis
;
Humans
;
Intracranial Pressure
;
Meningeal Carcinomatosis*
;
Methotrexate
;
Molecular Biology
;
Molecular Weight
;
Perfusion
7.The effect of low dose corticosteroid therapy on viral reactivation in patients with chronic hepatitis B virus infection.
Hyang Ie LEE ; Geum Youn GWAK ; Moon Kyung PARK ; Hyun Joo SUH ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO
Korean Journal of Medicine 2008;74(6):619-623
BACKGROUND/AIMS: We investigated the effect of low dose corticosteroid therapy on HBV reactivation in patients with chronic HBV infection. METHODS: From August 1998 to March 2007, the HBsAg-positive patients who received oral or intravenous corticosteroid therapy for more than 1 week at Samsung Medical Center were included in this retrospective study. We included those patients who received anticancer chemotherapy or organ transplantation, or concurrent antiviral therapy or other immunosuppressive agents. HBV reactivation was defined as a 10-fold increase in the HBV DNA levels compared with baseline. RESULTS: A total of 16 patients were included. They were 45.4+/-16.7 years of age, and the male:female ratio was 14:2. Their combined diseases included bronchial asthma, allergic urticaria, allergic rhinitis, etc. The corticosteroid doses were converted to prednisolone equivalent doses and these varied from 2.5 mg to 50 mg per day. Eleven patients used less than 20 mg of prednisolone per day. The mean medication duration was 60.1 days (range: 7-364 days). Among the patients, only one patient showed HBV reactivation. This ankylosing spondylitis patient was a 31-year old man who took prednisolone 5 mg/day for 364 days. He displayed HBeAg-positivity before corticosteroid treatment. There was no aggravation of the levels of ALT, albumin, bilirubin, and PT between the pre-and post-medication in this patient. CONCLUSIONS: The short term use of low dose corticosteroid is not likely to be related with HBV reactivation in those patients with chronic HBV infection, yet long term use may lead to viral reactivation. Further large scaled, prospective studies on this subject are needed.
Asthma
;
Bilirubin
;
DNA
;
Hepatitis B e Antigens
;
Hepatitis B, Chronic
;
Hepatitis, Chronic
;
Humans
;
Immunosuppressive Agents
;
Organ Transplantation
;
Prednisolone
;
Retrospective Studies
;
Rhinitis
;
Rhinitis, Allergic, Perennial
;
Spondylitis, Ankylosing
;
Transplants
;
Urticaria
8.Pre-transplant Predictors for 3-Month Mortality after Living Donor Liver Transplantation.
Nuri LEE ; Jong Man KIM ; Choon Hyuck David KWON ; Jae Won JOH ; Dong Hyun SINN ; Joon Hyeok LEE ; Mi Sook GWAK ; Seung Woon PAIK ; Suk Koo LEE
The Journal of the Korean Society for Transplantation 2014;28(4):226-235
BACKGROUND: High model for end-stage liver disease (MELD) scores (> or =35) is closely associated with poor posttransplantation outcomes in patients who undergo living donor liver transplantation (LDLT). There is little information regarding factors that negatively impact the survival of patients with high MELD scores. The aim of this study was to identify factors associated with 3-month mortality of patients after LDLT. METHODS: We retrospectively analyzed 774 patients who underwent adult LDLT with right lobe grafts between 1996 and 2012. Exclusion criteria were re-transplantation, left graft, auxiliary partial orthotopic liver transplantation, and inadequate medical recording. Preoperative variables were analyzed retrospectively. RESULTS: The overall 3-month survival rate was 92%. In univariate analysis, acute progression of disease, severity of hepatic encephalopathy, Child-Pugh class C, hepatorenal syndrome, use of continuous renal replacement therapy, use of ventilator, intensive care unit (ICU) care before transplantation, and MELD scores > or =35 were identified as potential risk factors. However, only ICU care before transplantation and MELD scores > or =35 were independent risk factors for 3-month mortality after LDLT. Three-month and 1-year patient survival rates for those with no risk factors were 95.5% and 88.6%, respectively. In contrast, patients with at least one risk factor had 3-month and 1-year patient survival rates of 88.4% and 81.1%, respectively, while patients with two risk factors had 3-month and 1-year patient survival rates of 55.6% and 55.6%, respectively. CONCLUSIONS: Patients with both risk factors (ICU care before LDLT and MELD scores > or =35) should be cautiously considered for treatment with LDLT.
Adult
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End Stage Liver Disease
;
Hepatic Encephalopathy
;
Hepatorenal Syndrome
;
Humans
;
Intensive Care Units
;
Liver Diseases
;
Liver Transplantation*
;
Living Donors*
;
Medical Records
;
Mortality*
;
Renal Replacement Therapy
;
Retrospective Studies
;
Risk Factors
;
Survival Rate
;
Transplants
;
Ventilators, Mechanical
9.Tissue engineering of heart valves by recellularization of glutaraldehyde-fixed porcine valves using bone marrow-derived cells.
Sang Soo KIM ; Sang Hyun LIM ; Seung Woo CHO ; So Jung GWAK ; Yoo Sun HONG ; Byung Chul CHANG ; Moon Hyang PARK ; Kang Won SONG ; Cha Yong CHOI ; Byung Soo KIM
Experimental & Molecular Medicine 2006;38(3):273-283
To increase the biocompatibility and durability of glutaraldehyde (GA)-fixed valves, a biological coating with viable endothelial cells (ECs) has been proposed. However, stable EC layers have not been formed successfully on GA-fixed valves due to their inability to repopulate. In this study, to improve cellular adhesion and proliferation, the GA-fixed prostheses were detoxified by treatment with citric acid to remove free aldehyde groups. Canine bone marrow mononuclear cells (MNCs) were differentiated into EC-like cells and myofibroblast-like cells in vitro. Detoxified prostheses were seeded and recellularized with differentiated bone marrow-derived cells (BMCs) for seven days. Untreated GA-fixed prostheses were used as controls. Cell attachment, proliferation, metabolic activity, and viability were investigated and cell-seeded leaflets were histologically analyzed. On detoxified GA-fixed prostheses, BMC seeding resulted in uninhibited cell proliferation after seven days. In contrast, on untreated GA-fixed prostheses, cell attachment was poor and no viable cells were observed. Positive staining for smooth muscle a-actin, CD31, and proliferating cell nuclear antigen was observed on the luminal side of the detoxified valve leaflets, indicating differentiation and proliferation of the seeded BMCs. These results demonstrate that the treatment of GA-fixed valves with citric acid established a surface more suitable for cellular attachment and proliferation. Engineering heart valves by seeding detoxified GA-fixed biological valve prostheses with BMCs may increase biocompatibility and durability of the prostheses. This method could be utilized as a new approach for the restoration of heart valve structure and function in the treatment of end-stage heart valve disease.
Tissue Fixation
;
Tissue Engineering/*methods
;
Swine
;
Proliferating Cell Nuclear Antigen/analysis
;
Muscle, Smooth/chemistry
;
Microscopy, Electron, Scanning
;
Immunohistochemistry
;
Heart Valves/cytology/*physiology
;
Heart Valve Prosthesis
;
Glutaral/*chemistry
;
Endothelial Cells/cytology/physiology
;
Dogs
;
Cell Survival/physiology
;
Cell Proliferation
;
Cell Differentiation/physiology
;
Cell Culture Techniques/*methods
;
Cell Adhesion/physiology
;
Bone Marrow Cells/chemistry/*physiology/ultrastructure
;
Antigens, CD31/analysis
;
Animals
;
Actins/analysis
10.Pegylated Interferon and Ribavirin in the Retreatment of Chronic Hepatitis C in Korea.
Hyun Chin CHO ; Geum Youn GWAK ; Yong Han PAIK ; Moon Seok CHOI ; Joon Hyeok LEE ; Kwang Cheol KOH ; Byung Chul YOO ; Seung Woon PAIK
Gut and Liver 2013;7(5):585-593
BACKGROUND/AIMS: Pegylated interferon (peginterferon) and ribavirin is the current standard therapy for chronic hepatitis C. The aims of this study were to evaluate the efficacy of peginterferon and ribavirin and to identify predictors of a sustained virological response (SVR) to the retreatment of chronic hepatitis C in Korea. METHODS: The clinical records of 91 patients with chronic hepatitis C who were retreated with peginterferon and ribavirin were retrospectively analyzed. None of the patients had previously attained a SVR, and the patients were categorized according to their previous responses (nonresponder, relapser, or inadequate treatment) to conventional interferon/ribavirin. RESULTS: The overall SVR rate was 54.9%. Independent predictors of a SVR were genotypes 2 and 3, relapse, an adherence to peginterferon of over 80%, and an early virological response (EVR). For genotype 1 patients, an adherence to peginterferon of over 80% was an independent predictor of a SVR. CONCLUSIONS: Peginterferon and ribavirin therapy is effective for the retreatment of Korean chronic hepatitis C patients who have failed interferon/ribavirin, especially in patients with genotypes 2 and 3, relapse, an adherence to peginterferon over 80%, and an EVR. For genotype 1 patients, retreatment was effective in patients with an adherence to peginterferon over 80%.
Genotype
;
Hepatitis C, Chronic
;
Hepatitis, Chronic
;
Humans
;
Interferons
;
Korea
;
Recurrence
;
Retreatment
;
Retrospective Studies
;
Ribavirin