No abstract available.

We examined 984 objects for exercise stress test, using CASE I(computer assisted system for exercise). They exercised according to Bruce's protocol, Among them, the mal were 613 and the female were 371. (Male:Female;17:1) The 5th and 6th decades occupied 61% of total objects. The purpose of test was evaluation of chest pain in 84% of total cases. The most frequent end point of test was dyspnea(42%) and chest pain was observed in 13% of total cases. Most of all objects above 8-9 METS. Positive results of exercise stress tert were obtained in 23%. As complications, ventricular tachycardia occurred in 7 cases, supraventricular tachycardia; 8, high degree VPB's; 6, sudden cardiovascular collapse;15, The complication rate was 0.36% but morbidity and mortality were 0. All complicated cases recoved spontaneously only by rest.
Chest Pain ; Electrocardiography* ; Exercise Test ; Female ; Humans ; Mortality ; Tachycardia, Supraventricular ; Tachycardia, Ventricular

No abstract available.

Gastric cancer is the most prevalent gastrointestinal tract malignancy in Korea. By the time the patient hassymptoms, these tumors are usually advanced in stage. In high risk populations,screening such as double contrastUGI or gastric endoscopy is needed and patient with vague symptoms should be studied. However, these screeningshave high diagnostic accuracy rate, only CT scan can identify accurately abnormal stomach wall thickening andintraabdominal tumor extension. And CT is important for palnning of treatment, assessing surgical resectability,postoperative evaluation and prognostic implications. Author reviewed CT scan of 67 cases of confirmed gastriccancer by double contrast UGI or endoscopic biopsy, for 29 months from March 1983 to August 1985 at Department ofRadiology, Pusan National University Hospital. The results were as follows: 1. The most frequent site ofinvolvement of gastric cancer was gastric antrum in 49.9%(33/67). 2. By CT staging, stage 3 was 40.2%(27/67) andstage 4 was 38.8%(26/67). 3. In CT scan analysis, the structures involved by diect invasion were regional lymphnodes, pancrease, and gastrocolic ligament in order of frequency. The structures involved by distant metastaseswere liver, systemic lymph nodes, and mesentery in order of requency. 4. The diagnostic accuracy of CT staging was73.9%(17/23) by correlation of surgical and pathological findings. 5. In determination of stage by CT, the rate ofin accuracy of stage 2 was highest as 33%(2/6), and that of stage 3 was 29.2%(3/11). 6. Of all misdiagnoses,83.3%(5/6) was owing to failure to differentiate lymph node invasion from reactive hyperplasia of lymph node.
Biopsy ; Busan ; Endoscopy ; Gastrointestinal Tract ; Humans ; Hyperplasia ; Korea ; Ligaments ; Liver ; Lymph Nodes ; Mesentery ; Pancreas ; Pancrelipase ; Pyloric Antrum ; Stomach ; Stomach Neoplasms ; Tomography, X-Ray Computed

PURPOSE: We compared the contrast enhancement patterns of hepatocellular carcinomas(HCC), hemangiomas, and metastasis on two phase imagings to determine the value of two phase dynamic CT in the differential diagnosis. MATERIALS AND METHODS: Two phases spiral volumetric CT scan were obtained 45 seconds and 6 minutes after bolus injection of contrast material in 106 patients. A bolus of 100 mL of nonionic contrast material was administered intravenously at a injection rate of 2 mL/sec. RESULT:In Hepatocollular carcinoma, 47% were totally hyperdense and 30% were totally hypodense in early phase, and 82% were totally hypodense in late phase. In hemangioma, 90% were peripherally hyperdense in early phase, 52% were isodense and 27% were totally hyperdense in late phase. In metastatic liver malignancies, 65% were hypodense and 32% were peripherally hyperdense in early phase, and 79% were hypodense in late phase. CONCLUSION: Two phases spiral volumetric CT scaning is considered to be heplful in the differential diagnosis of hepatic tumors.
Diagnosis, Differential* ; Hemangioma ; Humans ; Liver ; Neoplasm Metastasis ; Spiral Cone-Beam Computed Tomography ; Tomography, Spiral Computed*

The Sturge Weber syndrome is an uncommon disorder characterized by port-wine nevus of the face with angiomatosis of the ipsilateral cerebral leptomeninges and extensive calcification in the underlying cerebral cortex. Associated with this syndrome are mental retardation, choroidal angioma, buphthalmus or glaucoma, seizure and hemiplegia. We studied a case of incomplete form of Sturage Weber syndrome in a 12 year-old boy, who had generalized seizure, a homonymous hemianopsia, intracranial calcification and leptomeningeal angiomatosis. There are no characteristic facial nevus, mental retardation, occular changes and hemiplegia.

Many organic and nonorganic agents can cause chemical pneumonitis. Chemical pneumonitis induced by inhalation of acetic acid is a rare clinical condition. As acetic acid is a water soluble agent, it causes chemical irritation to respiratory tract and causes variable symptoms. We experienced a case of acute lung injury due to inhalation of acetic acid fume. A 56-year-old male patient was admitted due to dyspnea with vomiting for one day. After he inhaled acetic acid fume in occupational situation, he had chest tightness, chilling sense, and productive cough. Our case was good response to oxygen inhalation, antibiotics, and systemic steroids.
Acetic Acid* ; Acute Lung Injury ; Anti-Bacterial Agents ; Cough ; Dyspnea ; Humans ; Inhalation* ; Male ; Middle Aged ; Oxygen ; Pneumonia* ; Respiratory System ; Steroids ; Thorax ; Vomiting ; Water

Swallowing syncope is thought to be induced by an abnormal esophagovagal reflex arc that leads to transient bradyarrhythmia. Bradyarrhythmia in the response to swallowing produce decreased cardiac output and cerebral perfusion which result in loss of consciousness. Dysarrhythmia are common during any procedure which involves the manipulation of upper gastrointestinal tract, such as endoscopy of the esophagus or stomach. Swallowing syncope represents an extreme form of this phenomenon. We report a patient who had bradycardia and fainting episode during endoscopic examination. High degree atrioventricular block was detected in 24 hr Holter monitoring.
Atrioventricular Block ; Bradycardia ; Cardiac Output ; Deglutition* ; Electrocardiography, Ambulatory ; Endoscopy ; Esophagus ; Humans ; Perfusion ; Reflex ; Stomach ; Syncope* ; Unconsciousness ; Upper Gastrointestinal Tract

PURPOSE: Dynamic liver scan with spiral CT during a single breath hold was performed for To determing the optimal timing of scanning and the degree of the enhancement of liver and vessel. MATERIALS AND METHODS: Liver spiral CT was performed on 143 patients and dynamic sequence scan on 2 normal volunteers. After baseline spiral CT without contrast enhancement, spiral CT was performed after administration of a bolus of 100 ml of nonionic contrast material intravenously with mechanical power injector at the constant injection rate of 2 ml/sec. Cephalocaudal scanning was started 45 seconds after the beginning of injection. In the majority of cases we employed 16-24 continuous scanning with table feed of 10 mm, slice thickness of 10 mm, and reconstructed in 5 or 10 mm section increments. We measured degree of enhancement of aorta, IVC, and liver parenchyma in all images. RESULTS: We have achieved bolus phase at all images from the following measured date; 170-250 H. U at aorta, 110-150 H. U at IVC, 80-125 H. U at liver parenchyma, 100-130 H. U at spleen, which shown contrast difference between aorta and IVC at least 45 H. U. At the dynamic sequence scan, aortic and vascular CT atternuation reaches a peak at 55-60sec and peak hepatic enhancement occurred at 70-75 sec with relative plateau achieve at 45 sec. Spiral CT also showed elimination of variation in diaphragmatic excursion. CONCLUSION: We could get the disirable phase imaging at overall examination from the dynamic liver scan around 45-60 seconds after injection of contrast media.
Aorta ; Contrast Media ; Healthy Volunteers ; Humans ; Liver* ; Spleen ; Tomography, Spiral Computed

BACKGROUND: Losartan potassium, one of an orally active, selective type 1 angiotensin II receptor blocker, has been introduced recently as an antihypertensive agent. METHOD: Losartan, angiotensin II receptor blocker, was administrated as an initial antihypertensive agent over 12 weeks in 30 patients (11 male, 19 female, 60.1+/-7.2 years) with stage 1 to 3 hypertension in order to observe the clinical effects. Changes in quality of life, side effects, electrocardiogram and left ventricular function were also evaluated before and after losartan therapy. RESULTS: 1) After 12 weeks treatment with 50 to 100 mg of losartan, blood pressure was lowered markedly in 18 (60%), moderately in 9 (30%) and mildly in 1 (3%) out of 30 patients studied. The average of blood pressures of the 30 subjects were systolic 159.0+/-13.2 mmHg and diastolic 100.7+/-9.4 mmHg before treatment, which were lowered to 130.7+/-15.6 and 85.9+/-9.1 mmHg respectively after 12 weeks (p<0.005). 2) Heart rates were not changed with losartan. 3) Quality of life including general well-being, physical symptom, sleep and sexual dysfunction improved markedly in 2 (7%) and slightly in 17 (57%) out of 30 subjects. 4) Laboratory findings revealed no significant changes. 5) In electrocardiographic and echocardiographic follow-up 1 patient with ST-T abnormality and 2 patients with mild LV systolic dysfunction improved to normal. 6) Undesirable side effects were observed in 2 cases with dizziness, 1 dry cough, 1 skin rash, 1 leg edema and 1 epigastric discomfort, among whom one with dizziness stopped losartan. 7) In the final clinical assessment according to the scores of hypotensive effect, quality of life, LV function and side effect, losartan was very useful in 3 (10%), useful in 18 (60%) and slightly useful in 3 (10%) out of 30 hypertensive patients. CONCLUSION: Losartan can be used as an effective initial agent for the treatment of hypertension of various severities with the improvement of quality of life and low side effects.
Blood Pressure ; Cough ; Dizziness ; Echocardiography ; Edema ; Electrocardiography ; Exanthema ; Female ; Follow-Up Studies ; Heart Rate ; Humans ; Hypertension ; Leg ; Losartan* ; Male ; Quality of Life ; Receptors, Angiotensin ; Ventricular Function, Left