Colorecal cancer undergo relatively long preneoplastic processes before being invasive. Fecal occult blood test (FOBT) has been a useful tool to detect the advanced colorectal cancers with cost-effectiveness. However, the patient’s compliance to FOBT was poor because of low sensitivity and annual sampling. The sigmoidoscopy and colonoscopy have the ten-year preventive effect for the advanced cancer. Recently the DNA stool test for detection of mutations has showed excellent sensitivity and specificity. It has several adventages such as collection of samples and automated analysis. Virtual colonoscopy, especially CT colonograpy, can be a viable option for the colorecal cancer screening. In November 2001, the Korean Society of Coloproctology (KSCP) and the Natinal Cancer Center (NCC) developed the guidelines on screening and surveillance for early detection of colorectal cancers in Korea. Average-risk men and women should start colonoscopic examination with a 10-year interval at the age of 50. Individuals with increased risk such as those with a family or personal history of colorectal cancer or colorectal adenomas, or family history of familial adenomatous polyposis, hereditary non-polyposis colorectal cancer should consult their surveillance to the specialty-physicians. The ideal screening tools may change by age.
Adenoma ; Adenomatous Polyposis Coli ; Colonography, Computed Tomographic ; Colonoscopy ; Colorectal Neoplasms* ; Compliance ; DNA ; Early Detection of Cancer ; Female ; Humans ; Korea ; Male ; Mass Screening* ; Occult Blood ; Sensitivity and Specificity ; Sigmoidoscopy

Balloon-tipped, flow-directed (Swan-Ganz) catheters are used commonly for monitoring of cardiac function in patients undergoing cardiac surgical procedures. We report a case of pulmonary hypertension with hypoxemia which may be caused by incorrect positioning of pulmonary artery catheter (PAC) during CABG. Pulmonary arterial pressure (PAP) of 70/40 mmHg which was nearly high as systemic pressure was measured when we tried to wean patient from cardiopulmonary bypass. But, TEE (transesophageal echocardiography) showed nonspecific finding. PAP decreased soon and maintained about 33/16 mmHg for a few minutes. But, the PAP elevated high to 70/40 mmHg again and the arteral oxygen tension (PaO2) decreased to 61.2 mmHg. When we withdrew the PAC to the depth of 35 cm, the PAP and systolic pressure returned to normal range and PaO2 elevaed to 320 mmHg. End tidal CO2 was elevated from 30 mmHg to 35 mmHg.
Anoxia* ; Arterial Pressure ; Blood Pressure ; Cardiac Surgical Procedures ; Cardiopulmonary Bypass ; Catheters* ; Coronary Artery Bypass* ; Coronary Vessels* ; Humans ; Hypertension, Pulmonary* ; Oxygen ; Pulmonary Artery ; Reference Values

Diabetic neuropathy is an axonal degenerative disease characterized by progressive axonal atrophy and reduced axonal transport. We were interested in the potential neuroprotective effects of nerve growth factor against diabetic neuropathies. To this aim we studied the effect of nerve growth factor on satellite cells, which might play a trophic role toward the related neuron, of the dorsal root ganglion in the streptozotocin-induced diabetic rats by electron in microscope . Diabetes was induced in rats by the streptozotocin. And recombinant human NGF was administrated everyday for 10 consecutive weeks. The results obtained are as follows : 1.In the diabetic induced group, the satellite cells revealed irregular nuclei.The neuron-satellite cell interface was more irregular and plicated than that of control. Large vacuoles and dense bodies were observed and no defects were in the ribosomes and rough endoplasmic reticulum. In the vacuoles, medium electron dense, fiber -like materials were occasionally observed. 2. In the experimental group of diabetic rats treated with NGF for 10 weeks, nucleus was round and the neuron-satellite interface was more regular. Vacuoles and dense bodies were less seen than diabetic rats. In the cytoplasm, many microtubules were observed. In these studies, we considered that streptozotocin induces changes of the satellite cell structure and NGF might improve cellular changes of the satellite cell exposed with streptozotocin.
Animals ; Atrophy ; Axonal Transport ; Axons ; Cytoplasm ; Diabetic Neuropathies ; Endoplasmic Reticulum, Rough ; Ganglia* ; Ganglia, Spinal ; Humans ; Microtubules ; Nerve Growth Factor* ; Neurons ; Neuroprotective Agents ; Rats* ; Ribosomes ; Streptozocin ; Vacuoles

No abstract available.
Peripheral Nerves* ; Rabbits* ; Regeneration*

The authors dissected and examined a horseshoe kidney from the cadaver of a 54-year-old Korean female. The results were as follows. Other congenital anomalies or complications were not found, and no renal stones showed on plain radiography of the horseshoe kidney. The horseshoe kidney was located in the area between the 12 th thoracic vertebra and the 4th lumbar vertebra, with the superior extremity of the left kidney 10mm more inferior than that of the right. The isthmus connecting the bilateral kidneys was located at the level of the 3rd lumbar vertebra. The size of the kidney was 102mm × 52mm × 44mm (right) and 108mm × 62mm × 34mm (left), and the superoinferior and anteroposterior lengths of isthmus were 22mm and 10mm, respectively. The abdominal aorta and inferior vena cava passed posteriorly to the isthmus, with the inferior mesenteric artery and lumbar splanchnic nerve passing anteriorly. Some grooves were found on the anterior surface of the bilateral kidney. The hilum of the right kidney faced the anteromedial direction and that of the left kidney faced the anterolateral direction. At the hilar plane, the right renal arteries and veins passed anteriorly and posteriorly to the renal pelvis ; the left renal arteries passed posteriorly to the renal pelvis, with the left renal veins passing anteriorly and posteriorly. Three branches of the right renal arteries passed renal hilum, while two branches did not, and two branches of the left renal arteries passed renal hilum, while six branches did not. The two arteries arising from the aortic bifurcation were distributed to the isthmus. The number of renal veins passing the renal hilum were three in the right, and two in the left. The right and left ovarian veins drained to the renal veins. There were 12 minor calyces distributed normally in the right kidney, 13 minor calyces distributed radially in the left kidney, and 3 minor calyces in the isthmus, composed of parenchyme. The left portion of the horseshoe kidney was concluded to have developed poorly, on the basis of incomplete ascension and abnormal rotation during development, the imperfect configuration of the renal shape, and the abnormal distribution of the renal vessels and renal calyces.
Aorta, Abdominal ; Arteries ; Cadaver ; Extremities ; Female ; Fused Kidney* ; Humans ; Kidney ; Kidney Pelvis ; Mesenteric Artery, Inferior ; Middle Aged ; Radiography ; Renal Artery ; Renal Veins ; Spine ; Splanchnic Nerves ; Veins ; Vena Cava, Inferior

The efficacy of acetaminophen, sponging plus acetaminophen, and sponging alone as method of lowering body temperature was compared in 108 children aged 8 weeks to 5 years who presented with an axillary temperature of 38.5degrees C or greater during the period from January 1993 to April 1993. The following results were obtained. 1) The male to female ratio was 2.5:1 and clinical diagnosis in the order of frequency were upper respiratory infection, gastroenteritis, pneumonia, urinary tract infection, cellulitis, chickenpox and hand-foot-mouth disease. 2) At thirty minutes after treatment, there was no significant difference on the decrement of temperature among the three groups. 3) At sixty minutes, the temperature decrement was the greatest in the group of sponging plus acetaminophen and that was statistically significant (P<0.01). But there was no significant difference between the group of acetaminophen and that of sponging.
Acetaminophen ; Body Temperature ; Cellulitis ; Chickenpox ; Child* ; Diagnosis ; Female ; Fever* ; Gastroenteritis ; Humans ; Male ; Pneumonia ; Urinary Tract Infections

BACKGROUND: Induction of anesthesia with propofol commonly associated with reduction in systemic arterial pressure, especially in elderly and high risk patients. This reduction is influenced by the dose and rate of propofol injection. The aim of this study was to examine the effect of different injection rate of propofol on vital signs, dose requirement and induction time during induction period. METHODS: Unpremedicated one hundred and twenty ASA physical status I and II patients aged 20~60 years scheduled for elective surgery were randomly allocated into one of four (150, 300, 600, 1200 ml/hr) groups according to speed of injection of propofol during induction period. Loss of verbal contact was taken as the end-point of induction. Vital signs, SpO2, dose requirement of propofol and induction time were checked. RESULTS: As the injection rate of propofol became slower, there were significant reduction in induction dose and increase in induction time (p<0.05). For example, induction dose and time were 1.82 mg/kg, 223 +/- 58 sec in 150 ml/hr group and 3.14 mg/kg, 50 +/- 11 sec in 1200 ml/hr group, respectively. Also, decrease in systolic and diastolic pressure were less marked at lower injection rates. CONCLUSIONS: Slower injection of propofol produces less vital sign changes and dose requirement for the induction of anesthesia.
Aged ; Anesthesia* ; Arterial Pressure ; Blood Pressure ; Humans ; Propofol* ; Vital Signs*

The authors determined the value of performing urine microscopy on biochemically negative urine sepcimens in a pediatric population. The 746 urine specimens of patients who were either visited or admitted to the Department of Pediatrics, National Police Hospital, from March 1991 to July 1992 were reviewed on the basis of comparative evaluation of biochemical and microscopic urine analysis. Eight reactions of Clinitek(r) 200 were used as biochemical indicators, namely, pH, nitrite, albumin, glucose, ketone, urobilinogen, bilirubin, and blood. Out of 746 urine specimens studied, 186 were true positive. Thirty-six specimens reacted biochemically in the absence of positive microscopic findings (false postive), 492 specimens were true negatives. Thirty-two specimens had negative biochemical indicators, in spite of positive microscopy. The sensitivity of the biochemical parameters for predicting significant microscopy of urinary sediment is 85% and the specificity is 99%. The positive predictive value is 69.7% and the negative predictive value is 99.3%. The sensitivity of blood for RBC is 94%. and the specificity is 99%. The predictive value of a positive result is 84.6% and that of a negative result is 99.7%. We therefore conclude that urine microscopy is less necessary in biochemically negative urine specimens from asymptomatic pediatric patients, with hopefully resultant time and cost effectiveness.
Bilirubin ; Cost-Benefit Analysis ; Glucose ; Humans ; Hydrogen-Ion Concentration ; Microscopy ; Pediatrics ; Police ; Sensitivity and Specificity ; Urinalysis* ; Urobilinogen

No abstract available.
Diagnosis ; Ductus Arteriosus, Patent ; Endarteritis ; Pulmonary Embolism

The expression of c-fos and c-jun in the brain of the rat after capsaicin treatment was investigated by in situ hybridization, dot blot hybridization and immunocytochemical methods. Adult male Sprague-Dawley rats[200g] were used for this study. The first set of rats received a single subcutaneous injection of capsaicin[50mg/Kg] dissolved in 10% Tween-80 and 10% ethanol in saline. The rats were decapitated 1, 3, 5, 10, 24, 72 hours and 1 week after capsaicin treatment. The control set of rats were treated with saline instead of capsaicin. In situ hybridization and dot blot hybridization were carried out. O1igonucleotide probe complimentary to c-fos mRNA sequences were used for this study and labeling of oligonucleotides was accomplished using the DNA tailing kit. The expression of c-fos mRNA on the nucleus of neurons in in situ hybridization was observed throughout the brain, and was especially abundant in the olfactory cortex, nucleus of diagonal band of Broca, habenular nuclei, periaqueductal gray, parabrachial nucleus, entopeduncular nucleus, ventral posterolateral nucleus of the thalamus and cerebellum. Compared to the control rats, c-fos mRNA were increased 24 hours after capsaicin injection and gradually decreased after 72 hours, returning to the normal control level 1 week after capsaicin injection. c-fos mRNA was detected only 1 week after capsaicin injection in the various areas of the brain. The fos protein-like immunoreactivity was initially somewhat decreased at 24 hours, but increased at 72 hours and reactions was maximally observed at 1 week after capsaicin treatment. But Jun protein immunoreactivity was not increased, on the contrary, it was even decreased both in numbers of reactive cells and immunoreactivity 1 week after capsaicin injection. From the above results, c-fos gene expression was pronounced in the nucleus concerned with pain, olfaction and taste such as VPL nucleus of the thalamus, olfactory cortex and parabrachial nucleus, in the limbic system concerned with stress and emotion such as nucleus of diagonal band of Broca, periaqueductal gray and habenular nucleus, in the structure concerned with somatic motor function such as entopeduncular nucleus and cerebellum. Also, the c-fos gene was activated by the capsaicin early in the course of effects, then the fos protein increased as a results of c-fos activation. On the other hand, c-jun did not respond to capsaicin treatment early in the course, but Jun protein decreased late in the course of capsaicin effects.
Adult ; Animals ; Brain* ; Capsaicin* ; Cerebellum ; DNA ; Entopeduncular Nucleus ; Ethanol ; Genes, fos ; Habenula ; Hand ; Humans ; In Situ Hybridization ; Injections, Subcutaneous ; Limbic System ; Male ; Neurons ; Olfactory Pathways ; Oligonucleotides ; Periaqueductal Gray ; Rats* ; Rats, Sprague-Dawley ; RNA, Messenger ; Septal Nuclei ; Smell ; Thalamus ; Ventral Thalamic Nuclei