No abstract available.
Humans ; Paraquat* ; Poisoning*

BACKGROUND: Vasoconstricting drugs such as dopamine, phenylephrine (PE) and epinephrine constrict normoxic lung vessels preferentially, thereby disproportionately increasing normoxic lung pulmonary vascular resistance (PVR) and inhibit hypoxic pulmonary vasoconstriction (HPV). In this study, we evaluated the effect of PE on HPV and arterial oxygenation. METHODS: This study was performed on 21 patients undergoing thoracotomy. After induction of anesthesia, Swan-Ganz catheter was inserted. After one lung ventilation was started, systolic blood pressure (SBP) of the patient was reduced to 100 mmHg using inhalation anesthetic agent and then the blood pressure was raised up to 140 mmHg by PE infusion. Hemodynamic variables were measured and arterial blood gas was analyzed at the start of one lung ventilation (control), SBP of 100 mmHg and SBP of 140 mmHg. RESULTS: The mean dose of PE infused was 5.9 +/- 3.8 microgram/kg. Infusion of PE did not increase pulmonary vascular resistant index (PVRI) significantly and did not reduce arterial PO2. There was no statistically significant difference in intrapulmonary shunt fraction (Qs/Qt) between the time of low and high blood pressures. CONCLUSION: Pulmonary vasomotor changes induced by PE are minimal and so should not affect the distribution of blood flow during one lung ventilation. On the basis of this result, PE appears to a reasonable vasoconstrictor to be used in patients undergoing thoracotomy.
Anesthesia ; Blood Pressure ; Catheters ; Dopamine ; Epinephrine ; Hemodynamics ; Humans ; Hypertension ; Inhalation ; Lung ; One-Lung Ventilation* ; Oxygen* ; Phenylephrine* ; Thoracotomy ; Vascular Resistance ; Vasoconstriction*

OBJECTIVE: The purpose of this retrospective study is to identify and to discuss the clinical relevance of prognostic factors and survival rate in patients with epithelial ovarian cancer treated with combination chemotherapy. METHODS: A total of 98 histologically verified patients with epithelial ovarian cancer who were treated at Dong-A Medical Center between 1997 and 2002 were used for analysis. The 30 patients having borderline tumor were excluded. Kaplan-Meier survival curves were computed and tested statistically by the log rank test. A multivariable Cox proportional hazard model was applied to access the prognostic significance of the different covariates. RESULTS: The median age of the patients with epithelial ovarian cancer was 46.6 years and FIGO stage distribution was 38.2% for stage I, 5.9% for stage II, 44.1% for stage III, 11.8% for stage IV. The histopathologic type distribution were serous type (45.6%), mucinous type (36.8%), endometriod type (8.8%), clear cell type (7.4%), mixed type (1.4%). Residual tumor volume size of less than 1 cm or 1 cm was identified in 50 patients (73.5%) and more than 1 cm in 18 patients (26.5%) after primary cytoreductive surgery. The overall 5-year survival rate was 55.7%. According to univariate analysis, FIGO stage (p<0.0001), residual volume (p<0.0001), ascitic fluid volume (p=0.0001), menopause (p=0.0021), CA125 (p=0.0058), tumor size (p=0.0099), age (p=0.0113) were significant prognostic factors affecting survival. However, multivariate analysis in this study demonstrated that FIGO stage (p=0.011), residual tumor volume (p=0.026), ascitic fluid volume (p=0.031) were found to be the most significant independent prognostic factors. CONCLUSION: In this retrospective study, the overall 5-year survival rate of patients with epithelial ovarian cancer treated with combination chemotherapy was 55.7% and 5-year survival rate of stage I/II was 95.8%, stage III 28.4%, stage IV 0%. The overall survival of stage I/II were 90 months, stage III 39 months, stage IV 17 months. In multiple analysis, FIGO stage, residual volume, ascitic fluid volume were identified as three most significant independent prognostic factors.
Ascitic Fluid ; Drug Therapy, Combination* ; Female ; Humans ; Kaplan-Meier Estimate ; Menopause ; Mucins ; Multivariate Analysis ; Neoplasm, Residual ; Ovarian Neoplasms* ; Proportional Hazards Models ; Residual Volume ; Retrospective Studies ; Survival Rate

Cytomegalovirus(CMV) infections are common in immune compromised situations such as human immunodeficiency virus infection and organ transplantation. However CMV colitis had been rarely found in immunocompetent individuals. We experienced a case of an 83-year-old female patient, initially immune competent, who developed a massive lower gastrointestinal bleeding caused by CMV colitis. Previously, multiple antibiotics were used for nontuberculous Myco- bacterium and other bacterial infections after total knee arthroplasty. Colonoscopy revealed multiple ulcerations and mucosal congestion with hemorrhage. In spite of ganciclovir therapy, our patient did not recover.
Aged, 80 and over ; Anti-Bacterial Agents ; Arthroplasty ; Bacterial Infections ; Colitis ; Colonoscopy ; Cytomegalovirus ; Estrogens, Conjugated (USP) ; Female ; Ganciclovir ; Hemorrhage ; HIV ; Humans ; Knee ; Mycobacterium Infections, Nontuberculous ; Nontuberculous Mycobacteria ; Organ Transplantation ; Transplants ; Ulcer

Splenic infarcts are comparatively less common lesions. Caused by the occlusion of the major splenic artery or any of its branches, they are almost always due to emboli that arise in the heart. The spleen, along with the kidneys and brain, ranks as one of the most frequent sites of localization of systemic emboli. Infarcts may be small or large, multiple or single, and sometimes involve the entire organ. Usually these infarcts are of the bland anemic type. Septic infarcts are found in vegetative endocarditis of the valves of the left side of the heart. Much less often, infarcts in the spleen are caused by local thromboses, especially in leukemia, myeloproliferative syndrome, sickle cell anemia, polyarteritis nodosa, Hodgkin's disease, and bacteremic diseases. We experienced a rather unusual splenic infarction due to lymphoma in a 80-year-old man.
Aged, 80 and over ; Anemia, Sickle Cell ; Brain ; Endocarditis ; Heart ; Hodgkin Disease ; Humans ; Kidney ; Leukemia ; Lymphoma ; Polyarteritis Nodosa ; Spleen ; Splenic Artery ; Splenic Infarction ; Thrombosis

Secondary opportunistic central nervous system infections occur in approximately one-third of patients with acquired immune deficiency syndrome. With the introduction of highly active antiretroviral therapy, the number of opportunistic infection cases has significantly decreased. However, the number of progressive multifocal leukoencephalopathy (PML) cases caused by opportunistic human JC polyomavirus has not decreased at a noticeable rate. In this report, seven patients with PML were evaluated at the infectious disease unit of the National Medical Center. Six of the 7 patients were not on antiretroviral therapy at the time of diagnosis. The mean patient age of the 6 men and 1 woman was 39 years. The individual CD4 cell counts were 58, 6, 18, 73, 90, 252, and 94 cells/microliter. The mean CD4 cell count was 84 cells/microliter. The most common clinical manifestation was focal weakness and the temporal lobe was mainly involved. Two of the patients died 52 days after the diagnosis was made. Three patients survived for more than 1 year without disease progression. We conclude that one must take a careful patient history, perform a neurological examination, and examine brain magnetic resonance images in patients with human immunodeficiency virus who show neurological symptoms.
Acquired Immunodeficiency Syndrome ; Antiretroviral Therapy, Highly Active ; Brain ; CD4 Lymphocyte Count ; Central Nervous System Infections ; Communicable Diseases ; Disease Progression ; Female ; HIV ; Humans ; JC Virus ; Leukoencephalopathy, Progressive Multifocal ; Magnetic Resonance Spectroscopy ; Male ; Neurologic Examination ; Opportunistic Infections ; Temporal Lobe

We report a case of tubulointerstitial nephritis and uveitis (TINU) syndrome in an old age female. A 66-year-old woman presented with nonspecific systemic symptoms and severe renal dysfunction. Renal biopsy showed acute interstitial nephritis and ophthalmologic examination revealed bilateral panuveitis. Evaluations for connective tissue diseases and infectious diseases were negative. She was treated with total eight sessions of hemodialysis, oral steroids and topical steroids. Renal function had improved significantly and remained stable at follow-up, although it did not fully recovered yet. TINU syndrome should be considered in cases of unexplained tubulointerstitial nephritis, especially in the presence of ocular symptom.
Acute Kidney Injury ; Aged ; Biopsy ; Communicable Diseases ; Connective Tissue Diseases ; Female ; Follow-Up Studies ; Humans ; Nephritis, Interstitial ; Panuveitis ; Renal Dialysis ; Steroids ; Uveitis

BACKGROUND: The recovery and outcome of intoxicated patients depends on the kind of drugs they took and the total time of their initial management. The purpose of this study is to evaluate the usefulness of a Triage drug kit for detecting abused drugs. METHODS: From 2003 Feb. to 2003 July, we studied the patients who visited the emergency department with suspicious drug intoxication. In this case, we used a Triage drug kit for 134 patients with drug intoxication or who were clinically suspected of taking illegal drugs, with 30 of the patients initially admitting the substance they had used. The kit is an immunoassay kit for qualitative testing drug metabolites in urine. To compare with those cases of the preceding year, we studied 104 patients with drug intoxication that was detected between February 2002 and July 2002. RESULTS: Overall, 60% of the 30 cases who did not know what substance they abused and tested positive for, and 33% of the 27 cases with suspected intoxication confirmed their substance abuse. The positive rate for benzodiazepine use was the highest (46.7%), and there were no positive results regarding amphetamine, methamphetamine or cocaine. An appropriate antidote was administered significantly more frequently in the group for which we used the kit. CONCLUSIONS: A Triage drug kit is probably useful for diagnosing acute drug intoxication and for identifying the causative substance. However, the time required to decide whether or not a patient should be admitted is not reduced. If the kit can detect the frequently abused drugs in Korea, it will be helpful for treating drug intoxicated patients.
Amphetamine ; Benzodiazepines ; Cocaine ; Emergencies ; Humans ; Immunoassay ; Korea ; Methamphetamine ; Poisons ; Substance-Related Disorders ; Triage

BACKGROUND: Hepatocellular carcinoma (HCC) is the most common primary malignant tumor of the human liver. However, the molecular changes and mechanisms that regulate the development and progression of HCC remain unclear. Beta-catenin is known as a multi-functional protein that acts as a regulator of the cadherin-mediated cell-cell adhesion system and also in the Wingless/Wnt signal transduction pathway. The aim of this study was to investigate the expression of beta-catenin and its possible role in HCC. METHODS: We investigated the expression of beta-catenin, Ki-67, TP53, alpha-smooth muscle actin and CD34 by performing immunohistochemical staining for 61 specimens of HCC and their adjacent non-tumorous tissue. We also examined the relationship between the nuclear expression of beta-catenin and the clinicopathologic parameters. RESULTS: The altered expression of beta-catenin was not detected in the nontumorous liver tissue. The nuclear expression of beta-catenin was observed in approximately 16% (10/61) of the HCC specimens. Double immunohistochemical staining for beta-catenin and E-cadherin showed a close relationship between nuclear translocation of beta-catenin and the loss of the membranous E-cadherin expression. Significant correlation was found between the nuclear translocation of beta-catenin and the tumor size, tumor necrosis and the presence of microvessel invasion and intrahepatic metastasis (p<0.05). CONCLUSIONS: This data indicates that nuclear translocation of beta-catenin could play a role in the growth and progression of HCC.
Humans ; Carcinoma, Hepatocellular ; Neoplasm Metastasis

BACKGROUND: Molecular tools for tissue profiling generally require collection of fresh frozen tissues (FFT) as sources of high-quality DNA and RNA. Nowadays, researchers carry out large-scale, multi-center studies and they request inter-institutional minimal intrinsic bias, some fundamental similarities, and the same standardized and validated procedures. METHODS: This study reports standardized quality control procedure for fresh frozen tissue of the National Biobank of Korea. RESULTS: The main procedures for quality control for FFT are as follows: records related to sample collection such as labeling of samples, transport temperature, lag time from excision of tissue to freezing, and sample size were reviewed for all fresh frozen samples. The stability of RNA and DNA in fresh frozen tissue was evaluated for 3% of collected samples and purity was assessed (ratio of the absorbance at 260 and 280 nm) as was integrity (agarose gel electrophoresis). Stained hematoxylin and eosin sections were reviewed by a pathologist to confirm the diagnosis and to assess how representative the frozen sample was. CONCLUSIONS: We introduced that the quality-control criteria for fresh frozen tissue of the NBK. We expect that this study contributes to standardization of collection, storage, and quality control of fresh frozen tissue.
Bias (Epidemiology) ; DNA ; Eosine Yellowish-(YS) ; Freezing ; Hematoxylin ; Korea ; Quality Control ; RNA ; Sample Size