No abstract available.
Endometriosis* ; Female

No abstract available.
Nasal Cavity* ; Neurilemmoma*

PURPOSE: Nitric oxide (NO) is synthesized from the amino acid L-arginine by nitric oxide synthase (NOS) which exists as three isoforms, the calcium-dependent endothelial NOS and neuronal NOS, and a calcium-independent inducible NOS. NO has been studied in a variety of human cancers and is implicated in both tumor promotion and inhibition. NO cause p53 mutation in human cells and mutations of p53 are the most common genetic abnormality yet found in human cancers. Aims of this study is to investigate the correlation of iNOS and p53 expression in colorectal cancer, and to evaluate its clinicopathological siginificance with the expression of these proteins. METHODS: 125 patients, who received curative resection of colorectal cancer from 1992 to 1996, were analyzed retrospectively. The monoclonal antibody to the iNOS (Transduction Laboratories.), the monoclonal antibody to the mutant p53 (Dako Co.) were used for the immunohistochemical analysis. Normal colorectal tissue were assayed in 45 cases. The relationship between mutant p53 and iNOS was investigated. RESULTS: When iNOS expression were detected in specimens, positive rate of mutant p53 were 72.4%. When mutant p53 expression were detected in specimens, positive rate of iNOS expression were 65.8%(P<0.05). Positive rate of iNOS, mutant p53 in tumor size were 51%, 56% below 4 cm and 60%, 63% in 4~8 cm and 47%, 67% above 8 cm. Positive rate of iNOS, mutant p53 in Dukes' stage were55%, 55% in stage B and 56%, 67% in stage C. Positive rate of iNOS, mutant p53 in histologic differentiation were 55%, 55% in well-differentiation and 61%, 66% in moderate differentiation and 35%, 48% in poor-differentiation. There was no difference in each Dukes stage between iNOS expression or p53 mutation and postop five year survival rate. Positive rate of iNOS, mutant p53 in normal tissue were 22%, 32%. CONCLUSION: The prevalence of iNOS expression and p53 mutation has been found in exceeding 50% of cases. There was a significant correlation between iNOS expression and p53 mutation in colorectal cancer. No correlation was found between iNOS expression or p53 mutation and clinicopathologic parameters.
Arginine ; Colorectal Neoplasms* ; Humans ; Neurons ; Nitric Oxide ; Nitric Oxide Synthase ; Prevalence ; Protein Isoforms ; Retrospective Studies ; Survival Rate

Laryngeal mask airway(LMA) is a new type of airway, which may be used as an alternative to either the endotracheal tube or the face-mask with either spontaneous or positive pressure ventilation without penetration of the larynx or esophagus. LMA have many advantages of easy intubation without laryngoscope and muscle relaxants, decreasing damages of larynx and pharynx., and also useful in difficult intubation or emergency airway care. Recently its interesting has been increased. Clinical studies of LMA was done in 242 patients, about hemodynamic changes, volume and pressure changes of cuff, problems and complications during insertion and maintaining of LMA. The results were as follows: 1) The average time taken to insert the laryngeal mask airway was 9.9sec(range:5~60sec), and 43 cases were correct placement at the second attempt. And the total insertion time was 103 min(range:15~355min). 2) Total ari volume of cuff was 20.5ml(range:15~35ml) in LMA No 3, 28.1 ml(range:25~60ml) in LMA No 4. The least volume of cuff without air leakage was 15ml in LMa No 3 and 25ml in LMA No 4. During positive pressure ventilation the peak airway pressure was 20 cmH2O(15mmHg). 3) In hemodynamic changes, blood pressure was increased about 27.5 mmHg in systolic, 21.2 mmHg in diastolic, and 22.4 mmHg in mean arterial pressure after LMA insertion. 4) Cuff pressure was increased from 70.5mmHg at insertion to 98.9mmHg after 1hours with use of N2O for anesthesia and more increased than without N2O. 5) LMA was used 229 patients in supine position and 5 patients in lateral position. In 8 cases was failed to insertion of LMA. 6) Compilcations were 3 cases of gastric distention, 1 case of difficult nasogastirc tube insertion, and 1 case of severe sore throat with mucosal bleeding on pharyax. Sor throat was complained 26.9% without regard to severity.
Anesthesia ; Arterial Pressure ; Blood Pressure ; Emergencies ; Esophagus ; Hemodynamics ; Hemorrhage ; Humans ; Intubation ; Intubation, Intratracheal ; Laryngeal Masks* ; Laryngoscopes ; Larynx ; Pharyngitis ; Pharynx ; Positive-Pressure Respiration ; Supine Position

BACKGROUND: Recently, Doppler echocardiography has been widely used to evaluate left ventricular(LV) diastolic filling. However, There are only limited date about the influence of LV systolic function on the pattern of left ventricular diastolic filling. METHODS: To evaluate the changes of Doppler echocardiographic parameters of left ventricular filling induced by variations in left ventricular systolic function in dilated cardiomyopathy(DC) with heart failure(HF), 25 patients(M : F=14 : 11) with DC and HF, and 21 age-matched normal subjects(M : F=13 : 8) were examined by ECG, phonocardiography and echocardiography. From the Doppler recording, A2D(time from second heart sound to the onset of early diastolic mitral flow), peak velocity at early diastole(E) and late diastole(A), ratio of E to A velocity(E/A) and flow velocity integral(FVI) were measured. RESULTS: In 22 patients with DC and HF without mitral regurgitation(MR), A2D was significantly prolonged(119.5+/-12.7 vs 92.4+/-14.1msec, p<0.01), and early diastolic peak velocity and E/A velocity ratio were decreased as compared with the normal subjects(E=0.39+/-0.08 vs 0.57+/-0.12m/sec, p<0.01, E/A : 0.87+/-0.19 vs 1.33+/-0.19 vs 1.33+/-0.18, p<0.05). There were significant correlations between A2D and FVI(r=+0.73, p<0.01), and between E/A velocity ratio and FVI(r=-0.78, p<0.01). However, in 3 patients with MR, A2D(88.7+/-12.1msec), E(0.56+/-0.05m/sec), and E/A(1.32+/-0.12) were similar to those in normal subjects, despite of decreased FVI(12.0+/-0.9cm). CONCLUSIONS: These data show that a change of left ventricular systolic function in patients without MR may influence a diastolic filling pattern of left ventricle but not in patient with MR, and suggest that MR masks left ventricular distolic filling abnormalities.
Cardiomyopathy, Dilated* ; Echocardiography ; Echocardiography, Doppler* ; Electrocardiography ; Heart ; Heart Sounds ; Heart Ventricles ; Humans ; Masks ; Phonocardiography ; Ventricular Function, Left*

No abstract available.
Blast Crisis* ; Leukemia*

No abstract available.
Blast Crisis* ; Leukemia*

BACKGROUND: Spinal 5-hydroxytryptamine (5-HT) has been shown to display an antinociceptive effect, which is mediated by 5-HT receptors. Previous studies have revealed the presence of at least four types of 5-HT receptors in the spinal cord. The aim of this study was to assess the role of each spinal 5-HT receptor in the antinociception of intrathecal 5-HT using the formalin test. METHODS: Rats were implanted with lumbar intrathecal catheters. After the administration of 5-HT, formalin-induced nociceptive behavior (flinching response) was observed for 60 min. To further clarify the role of the 5-HT receptors in the antinociception of 5-HT, several antagonists of 5-HT receptors were administered intrathecally 10 min before 5-HT delivery, and formalin was injected 10 min later. RESULTS: Intrathecal 5-HT dose-dependently suppressed flinching during phase 1 and 2 in the formalin test. 5-HT1B (GR 55562), 5-HT2C (N-desmethylclozapine), 5-HT3 (LY-278,584) and 5-HT4 (SDZ-205,557) receptors antagonists reversed this antinociception by 5-HT during both phases in the formalin test. 5-HT1A receptor antagonist (WAY-100635) decreased antinociception by 5-HT in phase 2, but not in phase 1. A 5-HT1D receptor antagonist (BRL 15572) did not antagonize the antinociception of 5-HT in either phases. CONCLUSIONS: Spinal 5-HT1B, 5-HT2C, 5-HT3 and 5-HT4 receptors, but not the 5-HT1D receptor, are involved in the antinociception of serotonin in the facilitated state and in the acute pain evoked by a formalin stimulus. The 5-HT1A receptor seems to play a role in 5-HT-induced antinociception in the facilitated state.
Acute Pain ; Animals ; Catheters ; Formaldehyde ; Pain Measurement ; Rats* ; Receptor, Serotonin, 5-HT1A ; Receptor, Serotonin, 5-HT1D ; Receptors, Serotonin ; Receptors, Serotonin, 5-HT4 ; Serotonin* ; Spinal Cord*

PURPOSE: A heterotopic pancreas is defined as one for which pancreatic tissue is present outside its usual or habitual location and without an anatomic relation either of continuity or of vascularization with the pancreas proper. Most heterotopic pancreases are incidentally encountered during surgery, and on rare occasions, epigastric pain, weight loss, hemorrhage, gastric outlet obstruction, and intussusception have been directly attributable to the presence of a heterotopic pancreas. The purpose of this article is to report the clinical characteristics of the heterotopic pancreas. METHOD: We retrospectively observed 24 patients, who had been pathologically proven to have a heterotopic pancreas, at the Department of Surgery, Korea University Hospital, from Jan. 1990 to Dec. 1998. RESULTS: 16 of the 24 cases were found incidentally during operations due to by other primary diseases; 8 cases were symptomatic. The ratio of males to females was 1.18:1 and most common sites were the stomach and the duodenum (71%). The mean size of the lesion was 1.26 cm, and the sizes in symptomatic cases were larger (mean 1.89 cm) than those in cases where the lesions were found incidentally (mean 0.94 cm). We experienced a case of a ductal adenocarcinoma originating from the heterotopic pancreas in the jejunum of a 73 year old man. CONCLUSION: A heterotopic pancreas should be considered in the differential diagnosis of submucosal tumors, polyps, ulceration, and intestinal tumors, When suspected, an intraoperative frozen section is recommended, and the range and the method of the operation should be decided based on the results of the frozen section.
Adenocarcinoma ; Aged ; Diagnosis, Differential ; Duodenum ; Female ; Frozen Sections ; Gastric Outlet Obstruction ; Hemorrhage ; Humans ; Intussusception ; Jejunum ; Korea ; Male ; Pancreas* ; Polyps ; Retrospective Studies ; Stomach ; Ulcer ; Weight Loss

Objective: N-terminal pro-B-type natriuretic peptide (NT-proBNP) is suggested as a prognostic biomarker for communityacquired pneumonia (CAP). However, its predictive value for an individual adult and elderly CAP patients has not been fully investigated. Methods: Patients with CAP aged 18 years and older, who visited the emergency department (ED) from March 1, 2016 to March 31, 2019, were included in this study. Patients were divided into the adult group and the elderly group (age ≥70 years). Data was collected from the ED-based registry, and medical charts were retrospectively reviewed. The registry data included sociodemographic and past medical characteristics, as well as laboratory findings including NT-proBNP and C-reactive protein (CRP), Pneumonia Severity Index (PSI), and CURB65 (confusion, urea, respiratory rate, blood pressure, and aged 65 or more). The independent potential of NT-proBNP to predict mortality was assessed in both groups using multivariable logistic regression, and its predictive ability was evaluated in terms of performance (using areas under the curve [AUCs]) and goodness-of-fit (using the Bayesian information criterion [BIC]). Results: Totally, 325 CAP patients were evaluated, of which 208 (64%) belonged to the elderly group. NT-proBNP was identified as an independent predictor of CAP mortality in elderly patients, but not in adult patients. Moreover, AUC of the NT-proBNP for mortality was comparable to AUC of the PSI, but was higher than that of the CURB65, in elderly CAP patients. Similarly, the NT-proBNP had a better overall fit (lower BIC value) compared to the CURB65, for mortality. Additionally, both AUC and overall fit of the NT-proBNP for mortality were significantly superior to values obtained for CRP. Conclusion For elderly CAP patients in the ED, the NT-proBNP is an independent and useful predictor of mortality.