The surgical reconstruction of complex facial injuries have focused on the following; early one-stage repair, exposure of all fracture fragments, precise anatomic rigid fixation, immediate bone grafting, and definite soft tissue management were the main surgical procedures, as in other facial bone injuries. Complex facial bone fractures involving dentition should be managed by the same principles. However, conventional methods can not achieve accurate preinjury occlusion when there are unstable fracture segments, edentulous state, or complex palatal/maxillary and mandibular fractures. Seventeen patients were surgically reconstructed in conjunction with dental impression, model surgery, and fabrication of dental splints to establish better occlusion. Among the facial fractures that had the occlusal problem, maxillary/palatal fractures and complex mandibular fractures, were the major indications for fabrication of acrylic splints. During operation, fracture segments were reduced and repositioned according to dental wear facets of the prefabricated occlusal splint and then temporary intermaxillary fixations were performed. This allowed us to accomplish precise anatomical reduction and rigid intrenal fixations. The postoperative occlusions were acceptible and no complication occurred as direct effects of dental splint. We suggest that fabrication of an acrylic occlusal splint is necessary for the management of complex facial injuries involving dentition.
Bone Transplantation ; Dentition ; Facial Bones ; Facial Injuries* ; Humans ; Mandibular Fractures ; Occlusal Splints ; Splints* ; Tooth Wear

No abstract available.
Child* ; Hepatitis B, Chronic* ; Hepatitis, Chronic* ; Humans

PURPOSE: It has been known that there are several areas of T2 hyperintensities in normal white matter of brain, such as terminal zones of myelination, ependymitis granularis, ones of posterior internal capsule, and perivascular space. The aim of our study is to demonstrate another region of T2 hyperintensities in normal pediatric age group. MATERIALS AND METHODS: We have studied brain MR for 10 normal volunteers and 35 patients without having intracranial lesions in pediatric age group(3-19 years). RESULTS: In 5 among 45 cases, focal T2 hyperintensities were seen in the parietal periventricular white matter beneath the postcentral gyri. They were noted as poorly defined, 5--10mm sized areas of increased signal intensities on T2 weighted axial images. They were also characterized by bilateral, posteromedially oriented, short band-like or oval areas. Interestingly, they were directly continuous with the T2 hyperintensity of posterior internal capsule. In spite of the relatively high frequency in the pediatric population as in our study, this finding has not been reported in the asymptomatic adults. CONCLUSION: The results show that the bilateral anterior parietal hyperintense areas may be another terminal zones of delayed myelination affecting the parietopontine tract. They should be differentiated from pathologic T2 hyperintensities by their characteristic findings.
Adult ; Brain ; Healthy Volunteers ; Humans ; Internal Capsule ; Myelin Sheath ; Rabeprazole*

Parenteral reserpine was given intramuscularly to 32 hospitalized hypertensive patients: 10 hypertensive patients without renal insufficiency, 3 hypertensive patients with heart failure, 10 hypertensive patients of malignant phase or with uremia, and 9 hypertensive patients with cerebrovascular accident. Follwoings were the result. 1. In the majority of patients, the effective dose of reserpine was 2 to 3 mg. 2. Reserpine given intramuscularly lowered blood pressure in 2 to 4 hours, had its maximum effect in 3 to 6 hours and had a duration of 3 to more than 24 hours (average 9 hours). 3. When effective dose of reserpine was given, blood pressure was lowered significantly (more than 30mmHg in mean blood pressure) in 18 patients (81.7%) of 22 hypertensive patients without renal insufficiency, and in 4 patients (40%) of 10 hypertensive patients with renal insufficiency. 4. Major side effect was drowsiness which was more evident in the patients with renal insufficiency. 5. Reserpine administered parenterally is an effective and safe agent for the treatment of hypertensive emergencies on a short term basis especially in the patient without renal insufficiency.
Blood Pressure ; Emergencies ; Heart Failure ; Humans ; Renal Insufficiency ; Reserpine* ; Sleep Stages ; Stroke ; Uremia

In order to study the relationship between life-style and serum lipids level in young adults, the author measured the concentration of serum total cholesterol (TC), triglyceride (TG) and high density lipoprotein cholesterol (HDL-C) and investigated age, relative weight, weekly alcohol intake and daily cigarette smoking through questionnaire in 310 male workers aged 20 to 39, in Ulsan area. The results obtained were as follows: 1. In the factors being able to influence serum lipids level there was negative correlation between age and alcohol intake, and the positive corrrelation between age and relative weight, alcohol intake and relative weight, alcohol intake and smoking with the strongest correlation between alcohol intake and smoking. 2. In univariate analysis, mean total cholesterol concentration were significantly different according to age, smoking and relative weight; mean triglyceride concentration were significantly different according to relative weight only; mean HDL-C concentration were significantly different according to alcohol intake alone. 3. In non-drinkers, HDL-C concentration of smokers were significantly lower than that of nonsmokers but triglyceride concentration of smokers were significant higher. And in drinkers, total cholesterol concentration of smokers was significantly higher than that of non-smokers. 4. In multiple regression analysis, significant independent variables were relative weight, age and smoking in the total cholesterol concentration, and relative weight, age and alcohol intake in the triglyceride concentration, and alcohol intake, relative weight and smoking in the HDL-C concentration. By these independent variables, total variation in each dependent variable was explained 7.9%, 17.6% and 7.4% respectively.
Cholesterol ; Cholesterol, HDL ; Humans ; Male* ; Surveys and Questionnaires ; Smoke* ; Smoking* ; Triglycerides ; Ulsan ; Young Adult*

Retropsoas space below the level of kidney has been suggested as a portion of inferior extensions of perirenal and anterior and posterior pararenal spaces. With this being true, the space may play an important role in disease extension. A study was performed to verify the existence of retropsoas peritoneal recess by means of identifying the extension of bowel loops into this space. Abdominal CT scans of 146 cases evaluated retrospectively revealed extension of 5 small bowel and 7 large bowel loops (6 descending and 1 ascending colons)(n=12/8.2%) into the retropsoas space verifying its existence. Since pathologic collection within the retropsoas space might be falsely inter preted as a retroperitoneal pathology and percutaneous uroradiologic intervention could result in intraperitoneal injury or contamination without the knowledge on the existence of this space, observation of this space is essential in CT scans.
Kidney ; Pathology ; Retrospective Studies ; Tomography, X-Ray Computed

No abstract available.
Autonomic Pathways* ; Rectal Neoplasms* ; Urodynamics*

No abstract available.
Germ Cells* ; Neoplasms, Germ Cell and Embryonal*

No abstract available.
Occupations*

BACKGROUND: Myocardial infarction(MI) in the rat is a model of ventricular dysfunction which is associated with activation of compensatory neurohumoral systems. This stydy was designed to determine the temporal evolution of the regulatory factors-atrial natriuretic peptide(ANP), endothelin(ET), plasma renin activity(PRA) in rats with more than moderate sized MI at 1,4,8 weeks in comparison to normal rats. METHODS AND RESULTS: MI was created in female Sprague Dawley rats weighing 250gms to 300gms by ligating the anterior descending artery. Before sacrifice, hemodynamics were measured and blood was drawn in control rats(n=8) and rats with MI(n=7), 4(n=10), and 8 weeks(n=9) after surgery. Heart weight index increased from 329.0+/-7.3mg/gm at baseline to 380.6+/-18.4mg/gm, 441.1+/-23.2mg/gm at the 1st, 4th, and 8th weeks after MI. Plasma ANP increased in the 1st weeks and remained elevated(16+/-7, 259+/-65, 404+/-72, 494+/-73pg/ml at baseline, 1st, 4th, 8th weeks after MI respectively). Plasma endothelin was suppressed at 4th weeks but elevated at 8th week(7.8+/-0.2, 5.3+/-0.3, 11.9+/-1.3pg/ml at baseline, 4th, 8th weeks respectively). PRA, indirect index of plasma angiotensin also decreased at 4th week but elevated at 8th week(14.9+/-0.3, 9.8+/-1.0, 20.3+/-1.8ng/ml/hr at baseline, 4th, 8th weeks resepctively). CONCLUSION: These results demonstrate a biphasic response of endothelin and PRA after MI despite the inhibitory effects of ANP. These data support the important differential regulation of humoral factors in the evolution of acute MI.
Angiotensins ; Animals ; Arteries ; Atrial Natriuretic Factor ; Endothelins ; Female ; Heart Failure* ; Heart* ; Hemodynamics ; Humans ; Models, Animal* ; Myocardial Infarction ; Plasma ; Rats* ; Rats, Sprague-Dawley ; Renin ; Ventricular Dysfunction