The author studied the effect of the recirculation on the energy metabolism in acute focal cerebral ischemia. Acute focal cerebral ischemia was produced by transorbital occlusion of the left middle cerebral artery with a Heifetz clip under the operating microscope. The animals were divided into three groups according to the duration of the ischemia. Each group was reperfused for 1, 4 and 7 hour by removing the clip from the artery. In 1-hour ischemic group ATP and GTP was reduced to 38% and IMP to 40% of the sham control. After 7-hour recirculation in this group ATP was resynthesized to 85%, GTP to 85%, and IMP to 180% of the sham control. In 3-hour ischemic group ATP was reduced to 19%, GTP to 23%, and IMP to 29% of the sham control. In this group ATP, GTP and IMP rose to 43%, 49% and 84%, respectively after 7-hour recirculation ATP, GTP and IMP were markedly reduced in 5-hour ischemic group, and despite recirculation these substances continued to decrease and none of them were detected after 7-hours of recirculation, It was suggested that the restoration of the circulation must be accomplished within 1-hour or at least within 3-hour of the ischemic insult of the cats to prevent the irreversible brain infarction.
Adenosine Triphosphate ; Animals ; Arteries ; Brain Infarction ; Brain Ischemia ; Cats ; Edema* ; Energy Metabolism* ; Guanosine Triphosphate ; Ischemia ; Middle Cerebral Artery

Hypertensive encephalopathy is an acute clinical syndrome that shows central nerve dysfunction with sudden and marked elevation in blood pressure. But its pathophysiologic mechanisms, clinical courses and prognosis are still not clear. In order to study clinical manifestations and response to treatment in patients with hypertensive encephalopathy, we reviewed 45 patients with hypertensive encephalopathy who were admitted in Dept. of Internal Medicine, National Medical Center, from January 1975 to December 1984. The following results were obtained: 1) The ratio of male to female was 1.1:1. The peak age of incidence was in the 6th and 7th decade with mean age of 57.5 years. 2) Among 45 patients, only 29 had known history of hypertension and the average duration of hypertension was 8.1+/-3.6 years. 3) The most common sympotm was severe headache (68.9%). And altered consciousness, nausea and/or vomiting, focal neurologic signs and visual disturbance were also common symptoms in decreasing order of frequency. 4) Funduscopic examination showed hypertensive retinopathy in 20 of 24 (91.7%) patients and lumbar puncture revealed increased CSF pressure in 12 of 20 (60%) patients. 5) In most patients, the mean interval to symptomatic improvement was 2.1 days after administration of anti hypertensive agents, but in 6 patients with initial mean arterial blood pressure above 170mmHg, 4 patients showed delayed response and 2 patients were expired.
Antihypertensive Agents ; Arterial Pressure ; Blood Pressure ; Consciousness ; Female ; Headache ; Humans ; Hypertension ; Hypertensive Encephalopathy* ; Hypertensive Retinopathy ; Incidence ; Internal Medicine ; Male ; Nausea ; Neurologic Manifestations ; Prognosis ; Spinal Puncture ; Vomiting

Two cases of spontaneous kidney rupture with literatural review was presented at first in Korea. 1) 56 years male patient and 25 years male patient admitted to our department of Urology through Emergency Room after onset of 2 and 1 day. after treatment at local clinic. 2) Chief complaints were one side flank pain which was followed by total gross hematuria. 3) Preoperative diagnoses were kidney rupture due to necrotic pelvic tumor in 56 years male and hypernephroma in 25 years male patient. 4) Operation was procedured at 8 days and 4 days after admission respectively. 5) The operative procedure were nephrectomy in both cases. 6) The pathological diagnoses were pelvis rupture due to renal stone and parenchymal rupture due to renal infarction in each case.
Carcinoma, Renal Cell ; Diagnosis ; Emergency Service, Hospital ; Flank Pain ; Hematuria ; Humans ; Infarction ; Kidney* ; Korea ; Male ; Nephrectomy ; Pelvis ; Rupture ; Rupture, Spontaneous* ; Surgical Procedures, Operative ; Urology

PURPOSE: The purpose of this study is to analyze the usefulness of breast thermography in assessing the prognosis in breast cancer and to obtain correlative evidence between thermographic prognosis and prognostic factors for breast cancer. MATERIALS AND METHODS: Thermographic examinations were performed in a room maintained at 20C. The patient was undressed to the waist, with both arms elevated for 10 minutes prior to the examination in order to cool and equilibrate the breast skin at room temperature. Digital infrared thermographic system was used (NEC, San-ei, Therm Tracer 6T67). The thermographic prognosis was classified according to Dr. Hobbins (Sl good, S2=fair and S-poor) suggested by Dr. Hobbins. The results were analyzed by Chi-Squire. One hundred three patients of breast cancer were examined by digital infrared thermographic system between Jan 1992 and December 1996. RESULTS: The mean age was 48, with a range from 20 to 85. According to the TNM classification 25 (24%) were in stage I, 47 (46%) stage II, 29 (28%) stage III, and 2 (2%) stage IV. The tumor size ranged from 0.5 to 20 cm (mean 4 cm), On histologic examination, 43 (43.%) patients had metastasis in the axillary nodes, 40 (55%) patients was estrogen-receptor positive. The nuclear grade I was 46 (35%) patients, II 24 (28%) and III 16 (19%). The classification of thermographic prognosis were Sl in 47 cases (46%), 82 in 32 (31%) and 83 in 24 (23%). The classification of the thermographic prognosis was found to be statistically correlated with tumor size (p<0.0001), axillary node status (p<0.0001) and TNM tumor stage (p<0.0001). But nuclear grade and estrogen receptor were not statistically correlated with the thermographic prognosis. The correlation between thermographic prognosis and actual survival rate was not available. CONCLUSION: These results suggest that breast thermography would be useful as a predictor in breast cancer before surgery.
Arm ; Breast Neoplasms* ; Breast* ; Classification ; Estrogens ; Humans ; Neoplasm Metastasis ; Prognosis* ; Skin ; Survival Rate ; Thermography*

BACKGROUND AND OBJECTIVES: Nitric Oxide (NO) is an endogenous mediator first characterized as an endothelium-derived relaxing factor. It is now recognized as a key mediator in many physiological process such as vasodilatation, neurotransmission, host defense, and iron metabolism. However, much remains to be determined about the pathophysiological role of NO in the airway. Peroxynitrite, which is synthesized by NO, is the diret cause of cellular toxicity in inflammatory reaction. In this study, we investigated the cellular toxcity of peroxynitrite by the expression of Heat-shock proteins 70 (HSP 70) in normal human nasal epithelium (NHNE) at the inflammatory conditions MATERIALS AND METHODS: 3-Morpholinosydronimone clorhydrate which is a peroxynitrite donor was mixed in the media of cultured NHNE cell. RESULTS: HSP 70 was expressed at the peroxynitrite environment of cultured NHNE cells and HSP 70 mRNA was detected with a time-dependent increasing pattern. CONCLUSION: Peroxynitrite may have a cytotoxic effect, and inhibition of peroxynitrite synthesis may have an important role for controlling the cytotoxic and inflammatory conditions of rhinitis and sinusitis.
Endothelium-Dependent Relaxing Factors ; Epithelial Cells* ; HSP70 Heat-Shock Proteins ; Humans* ; Iron ; Metabolism ; Nasal Mucosa ; Nitric Oxide ; Peroxynitrous Acid* ; Physiological Processes ; Rhinitis ; RNA, Messenger ; Sinusitis ; Synaptic Transmission ; Tissue Donors ; Vasodilation

Ventricular tachycardia is an important tachyarrhythmia which is encountered commonly in clinical field. The accompanying manifestations could be variable just from palpitation to sudden cardiac death. The classification of this arrhythmia has not completly settled yet, but in a broad way this arrhythmia is classified according to the prescence or abscence or underlying heart disease, especially coronary artery disease. Recently, therapeutic modalities for this arrhythmia have been changed a lot from classical antiarrhythmic drugs to radiofrequency ablation or ICD implantation although there are still some problems to overcome. We experienced a case of 34-year-old female having an incessant ventricular tacycardia which was abolished after endomyocardial biopsy performed to differentiate underlying myocardial pathology.
Adult ; Anti-Arrhythmia Agents ; Arrhythmias, Cardiac ; Biopsy* ; Catheter Ablation ; Classification ; Coronary Artery Disease ; Death, Sudden, Cardiac ; Female ; Heart Diseases ; Humans ; Pathology ; Tachycardia ; Tachycardia, Ventricular*

No abstract available.
Echocardiography, Transesophageal* ; Mitral Valve Insufficiency*

OBJECTIVE: This study was carried out to evaluate the clinicopathologic significance of hepatocyte growth factor (HGF) and c-met expression as well as tumor angiogenesis in endometrial hyperplasia and adenocarcinoma. METHOD: By means of immunohistochemical staining, HGF, c-met expression, and angiogenesis were investigated in total of 49 patients (19 endometrial hyperplasia, 30 endometrial adenocarcinoma). HGF and c-met were identified with specific corresponding antibodies. To evaluate angiogenesis, the microvessels were highlighted by staining their endothelial cells immunohistochemically for anti-CD31. Areas close to the deepest myometrial invasion or those with the highest grade of endometrial hyperplasia and the highest angiogenic intensity were selected. Three fields of 400 magnification were selected for each slide, and the mean microvessel count was obtained. RESULTS: Diffuse staining for HGF was demonstrated in normal, endometrial hyperplasia and endometrial adenocarcinoma tissue in 45.5, 52.6 and 63.3 percent, respectively, while that for c-met was demonstrated in 9.1, 36.8 and 60.0 percent, respectively. c-Met overexpression was significantly correlated with high surgical stage as well as poor cellular differentiation. There were significant differences in microvessel count among normal, complex endometrial hyperplasia and adenocarcinoma (median 5, 9 vs. 22) and was between simple and complex endometrial hyperplasia (median 6 vs. 9). The microvessel counts were also significantly correlated with high surgical stage, poor cellular differentiation, lymph node involvement and deep myometrial invasion. CONCLUSION: This results suggested that both c-met overexpression and angiogenesis measured by microvessel count could be significantly important prognostic indicators for the prognosis of endometrial adenocarcinoma.
Adenocarcinoma* ; Antibodies ; Endometrial Hyperplasia* ; Endothelial Cells ; Female ; Hepatocyte Growth Factor* ; Hepatocytes* ; Humans ; Lymph Nodes ; Microvessels ; Prognosis

To evaluate the effectiveness and to find out which grade(clinical and computed tomography) of subarachnoid hemorrhage(SAH) patients are most effected with the medication of the calcium antagonist, we did this study. We selected 339 cases(study cases) among a total of 603 cases of SAH who were admitted to our hospital from Sept. 1982 to Aprial 1991. The criteria of study cases are patients who were admitted and who had a brain computed tomography(CT) taken within 3 days after the SAH and who had a clinical grade(Hung & Hess) on admission between I-IV. We divided study cases into 3 groups. Group I:surgery was done more than 7 days after the SAH and together with non-surgical patients, no medication was used(N=126). Group II:surgery was done more than 7 days after teh SAH and together with non-surgical patients medication of the calcium antagonist was given orally(N=120). Group III:surgery was done more than 7 days after the SAH and together with non-surgical patients, medication of nimodipine intravenously was given, and also patients, medication of nimodipine intravenously was given, and also patients who received surgery did within 3 days after the SAH were given intravenous injection and cisternal irrigation of nimodipine(N=93). We compared the overall management outcome and the incidence of delayed ischemic dificit(DID) and unfavorable outcome due to DID in each group. We also analyzed the causes of unfavorable outcome according to the clinical grade on admission and the amount of blood in the cistern seen on the brain CT in each group. The results of this study showed that overall management outcome was improved by using the calcium antagonist. The calcium antagonist reduced the incidence of DID as well as the unfavorable outcome related to DID. In clinical grade III patients on admission, the unfavorable outcome due to DID was significantly lower in group II and III than in I(group I vs. II:p<0.05, group I vs. III:P<0.01). In cases with a large amount of blood in the cistern seen on the brain CT, the unfavorable outcome was significantly lower in groups II and III than in I(group I vs. II:p<0.01, group I vs. III:p<0.05). We conclude that the overall management outcome of aneurismal SAH patients may be improved by using a calcium antagonist and the effect of the calcium antagonist is prominent in clinical grade III patients on admission and patients with a large amounts of blood in the cistern seen on the brain CT.
Aneurysm* ; Brain ; Calcium* ; Humans ; Incidence ; Injections, Intravenous ; Nimodipine ; Subarachnoid Hemorrhage*

BACKGROUND: Left ventricular hypertrophy is common in chronic renal failure patients and may contribute increased risk of cardiovascular morbidity and mortality. We evaluated the left ventricular morphology and function in renal transplant recipients to find the relationship between hemodynamic changes and morphologic and functional improvement after transplantation. METHODS: Serial echocardiographic evaluations were performed in 27 adults(20 men and 7 women) at the time of transplantaion and posttransplantation 1 month and 4 months. The average duration of hemodialysis was 16+/-24 months(mean+/-S.D.). RESULTS: At the time of transplantation, the hematocrit level was 21+/-6% and posttransplantation 1 month and 4 months, that was increased to 39+/-5% and 42+/-7%, respectively(p<0.001). Left ventricular mass index by echocardiography was decreased significantly from 246+/-87g/m2(pre-KT) to 169+/-38g/m2(post-KT 1 month) and 153+/-40g/m2(post-KT 4 months), respectively (p<0.001). Interventricular septal thickness and left ventricular posterior wall thickness were decreased significantly after 4 months of transplantation. Left ventricular systolic and diastolic dimensions were also decreased significantly after 1 month and 4 months of transplantation. Left ventricular volumes and cardiac output were also decreased significantly. But A/E ratio, ejection fraction and fractional shortening did not change significantly. CONCLUSION: These findings showed that pretransplant high output state was resolved radipidly(within 1 month) but the diastolic function did not improved after transplantation 1 month and 4 months.
Cardiac Output ; Echocardiography* ; Hematocrit ; Hemodynamics ; Humans ; Hypertrophy, Left Ventricular ; Kidney Failure, Chronic ; Kidney Transplantation ; Male ; Mortality ; Renal Dialysis ; Transplantation*