No abstract available.
C-Reactive Protein* ; Child* ; Diagnosis, Differential* ; Humans ; Meningitis*

No abstract available.
Hyperostosis, Cortical, Congenital*

BACKGROUND: Laryngoscopy and tracheal intubation for general anesthesia are potent stimuli to the cardiovascular system due to sympathetic stimulation. The aim of this study was to compare the hemodynamic responses with different administration routes of lidocaine on blood pressure and heart rate changes associated with tracheal intubation. METHODS: Sixty patients were randomly assigned to spray group (Group 1, n=20) received 10% lidocaine 1.5 mg/kg spray to intratracheally immediately before tracheal intubation, IV group (Group 2, n=20) received 2% lidocaine 1.5 mg/kg intravenously before 90 sec tracheal intubation and control group (Group 3, n=20). Anesthesia was induced with thiopental 5 mg/kg IV, vecuronium 0.1 mg/kg and 50% N2O-O2- 2vol % enflurane. After 5 minutes, tracheal intubation was performed. Mean arterial pressure and heart rate were measured at preintubation and immediately postintubation, 1, 3, 5 mins after tracheal intubation. RESULTS:The differences of mean arterial pressure which were measured at preintubation and immediately postintubation and 1 minute after intubation in group 1 were significantly lower than those in other group (p<0.05). The differences of heart rate which measured at preintubation and 1 minute after intubation were lower than those in group 3 (p<0.05). CONCLUSIONS: For the suppression of sympathetic stimulation following tracheal intubation, 10% lidocaine spray to the laryngotrachea is an effective method to suppress cardiovascular response.
Anesthesia ; Anesthesia, General ; Arterial Pressure ; Blood Pressure ; Cardiovascular System ; Enflurane ; Heart Rate* ; Heart* ; Hemodynamics ; Humans ; Intubation* ; Laryngoscopy ; Lidocaine* ; Thiopental ; Vecuronium Bromide

PURPOSE: Mycoplasma pneumoniae is a common cause of lower respiratory disease, especially in children and young adults. The diagnosis, in most cases, is confirmed by serology. M. pneumoniae is difficult to culture because of its fastidious nature, and growth is too slow for diagnostic use. In this prospective study, the sensitivity and specificity of the PCR assay was evaluated with clinical samples. METHODS: We compared the nested PCR test with serological findings for detection of M. pneumoniae in clinical samples(sputum or throat swabs), obtained from 58 pneumonic children who were admitted to the pediatric department of Chungnam National University Hospital between February and September, 1997. RESULTS: Among 28 mycoplasma antibody positive cases, the number of positive cases of cold agglutinin test were 20. So sensitivity and specificity of cold agglutinin test were 71.4% and 80.0%. Positive predictive value and negative predictive value of cold agglutinin test were of 76.9% and 75.0%. Among 28 mycoplasma antibody positive cases, the number of positive cases of M. pneumoniae nested PCR were 26 cases. So sensitivity and specificity of M. pneumoniae nested PCR were of 92.8% and 100.0%. Positive predictive value and negative predictive value were of 100.0% and 93.7%. Four cases showing negative antibody, in acute phase serum and positive in convalescent, revealed positive for nested PCR test. CONCLUSION: It is concluded that nested PCR assay is a highly sensitive, specific test and is fast enough to allow for the early application of therapy with specific antibiotics.
Anti-Bacterial Agents ; Child ; Chungcheongnam-do ; Diagnosis* ; Humans ; Mycoplasma pneumoniae* ; Mycoplasma* ; Pharynx ; Pneumonia* ; Pneumonia, Mycoplasma* ; Polymerase Chain Reaction* ; Prospective Studies ; Sensitivity and Specificity ; Young Adult

No abstract available.
Child* ; Humans ; Scrub Typhus*

Recently, alteration on chemical treatment on the root and removal of pathologic bacteria, which is the main reason for periodontal disease, by complete removal of infected cementum layer was been emphasied In this study, teeth extracted due to periodontal disease were root planed using periodontal curette and roto bur. Then they were treated with different concentration of Tetracycline HCl at different time. The state of root surface and change in the pre and post treatment was observed. The results were as follows. 1. The group treatment with periodontal curette and saline showed remaining plaque, debris and irregular surface and no dentianl tubule orifice could be seen. 2. The group treatment with periodontal curette and tetracycline HCl showed process compoed with decacified material and there was concanity seemed to be a lacunae of cementocyte. 3. The group treatment with roto bur and saline, there was no remaning plaque and partial dentinal tubule orifice could be seen but smear layer covering them. 4. The group treatment with roto bur and tetracycline HCl showed various shape and size dentinal tubule orifice could be seen. From the results, roto bur showed cleaner surfaces than treatment with periodontal curette. But still smear layer existed. Thus for regeneration of periodontal tissue, chemical treatment using tetracycline HCl should follow roto bur treatment. And it is considered that the treatment time is more important than the concentration of tetracycline HCl.
Bacteria ; Dental Cementum ; Dentin ; Periodontal Diseases ; Regeneration ; Root Planing* ; Smear Layer ; Tetracycline* ; Tooth

BACKGROUND: A thoracic epidural combined with general anesthesia may reduce the oxygen demand of the heart by cardiac sympathetic blockade, but it may also reduce the systemic and cardiac oxygen delivery due to hypoperfusion which is critical to patients with significant coronary lesions. This study was done to investigate the effects of thoracic epidural anesthesia on the systemic and cardiac oxygen supply/demand balance during coronary occlusion in dogs. METHODS: In 10 dogs, the left circumflex coronary artery was occluded, and then thoracic epidural anesthesia was given at the T5-6 or T6-7 level with 5 ml of 0.5% bupivacaine to block T1-T12 through the surgically introduced epidural catheter. Hemodynamic parameters and arterial, mixed venous and coronary sinus blood samples were obtained at baseline and 30 minutes after coronary occlusion. The same parameters were also measured at 30, 60, 90, 120 and 150 minutes after the epidural blockade. An epicardial 2D-echocardiogram was done by a cardiologist at baseline, 30 minutes after occlusion and 1 hour after the epidural blockade. RESULTS: Systemic oxygen delivery (O2 flux) was decreased after epidural anesthesia (p < 0.05), but oxygen consumption (VO2) was maintained throughout the experimental periods. Although the systemic oxygen extraction ratio (O2ER) was not changed, cardiac O2ER was increased at 90, 120 and 150 minutes after epidural anesthesia (p < 0.05). The end-diastolic noncontractile area of the left ventricle was increased, pulmonary capillary wedge pressure was increased 90 minutes after epidural anesthesia and cardiac output was decreased 120 minutes after epidural anesthesia (p < 0.05). CONCLSIONS: In the experimental canine model of coronary occlusion, thoracic epidural anesthesia induces diminished systemic oxygen delivery without deteriorating oxygen supply/demand balance. However, as PsO2 and SsO2 diminished and the noncontractile left ventricular area increased after epidural anesthesia in the setting of acute coronary occlusion, perioperative use of thoracic epidural anesthesia in patients of coronary disease should be done carefully in order not to aggravate myocardial ischemia.
Anesthesia, Epidural* ; Anesthesia, General ; Animals ; Bupivacaine ; Cardiac Output ; Catheters ; Coronary Disease ; Coronary Occlusion* ; Coronary Sinus ; Coronary Vessels ; Dogs* ; Heart ; Heart Ventricles ; Hemodynamics ; Humans ; Myocardial Ischemia ; Oxygen Consumption ; Oxygen* ; Pulmonary Wedge Pressure

The purpose of this study is to observe histopathologic changes in the bilateral craniomandibular joints after allowing 6 weeks of consolidation by varying the amount of distraction in rabbit mandible. Eight rabbits weighing about 2 to 3kg were used. After corticotomy was performed on the left mandibular body between the first premolar and the second premolar region, a unilateral fixation device was placed. Then, a 7-day period was allowed without distraction of the device. The mandible was lengthened 0.5mm/day. Corticotomy and lengthening of mandible were not performed in control group. After the completion of the lengthening process, a 6-week-consolidation period was allowed. Then, the rabbits were sacrificed, and histologic examination of the craniomandibular joints was performed. Proliferative changes were observed in the craniomandibular joints in all groups. With the increasing amount of distraction, hypertrophy of the cartilage layer became more severe, bone formed was dense and enchondral ossification was clearly shown in subchondral bone. Hypertrophy of the cartilage layer was also seen in the non-distracted side as the distracted side in the experimental group. These results indicate that when physical force is applied constantly to joints, the proliferation of articular cartilage and bone formation are present. When more than 6 weeks of consolidation period is allowed at the time of performing distraction for more than 5mm, articular changes, especially, in the contralateral side should also be noted.
Bicuspid ; Cartilage ; Cartilage, Articular ; Hypertrophy ; Joints* ; Mandible ; Osteogenesis ; Osteogenesis, Distraction* ; Rabbits*

Diaper dermatitis is an infant dermatosis associated with the wearing of diapers, Despite of its high frequency in clinical pediatrics the clinical characteristics are not well described in the korean literatvre. We investigated the clinical and mycological characteritics of diaper dermatitis in 50 serial patients. Clinically diaper dermatitis was classified. into five categories,irritant contact derniatitis(ID), candidiasis(CD). combined rash of ID and CD(CR.), intertrigo, and miliari. Of 50 patients with diaper dermatitis, 18 had ID; 16, CI3; 10, CR; 5, intertrigo, and 1, miliaria, The mean age of patients with ID (11.8 months) was higher than that of patients with CD (4.0 months). Candida albicans(C. albicans) w is isolated from 25 patients with diaper dermatitis. The rate of positive cultures by clinical diagnosis was 130% in CD, 11.1% in ID, 60, 0% in CR, and 20.0% in intertrigo. C. albicons was isolated from 23 patients(82.1%) of patients with clinically suspected Ci") and 2 of 22 patients without the characteristic erythematous papulesThe presence of eryhematous papules was the most characteristic clinical feature of infection, Other candida species isolated from cut,aneous lesions were C. tropicalsis, C.'. parapsiolosis, and C. stellatoidea.
Candida ; Candidiasis ; Dermatitis* ; Diagnosis ; Exanthema ; Humans ; Infant ; Intertrigo ; Miliaria ; Pediatrics ; Skin Diseases

PURPOSE: The purpose of this study is to evaluate that sequential CT scans after oral contrast ingestion can show morphological and functional status of the biliary tree, especially for the gallbladder and assess whether the CT scans demonstrate other radiological informations than conventional oral cholecystography. MATERIALS AND METHODS: Thirty volunteers in third decades and eight patients with hepatobiliary disease were included for the study. CT scans were obtained 3, 6, 9, 12 hours after oral contrast ingestion and thirty minutes after fat meal in thiry volunteers. Conventional oral cholecystography was also obtained in all volunteers at 12 hours after oral contrast ingestion and after fat meal. We evaluate opacification of gallbladder, biliary tree, and duodenum by contrast media on CT scans and attenuation values of gallbladder, common hepatic duct and common bile duct in each artatomic area on CT and its sequential change. CT scans were performed 6 hours after oral contrast ingestion in eight patients with hepatobiliary disease. And gallbladder function was evaluated by opacification of gallbladder by contrast media in all patients. RESULTS: In thirty volunteers, opacified gallbladder by contrast media was seen in all cases in all sequential periods of time on CT scans, but in 22 cases on conventional oral cholecystography. Contrast-filled intrahepatic ducts were demonstrated in 3 cases at 3 hours after oral contrast ingestion and 11 cases at 6 hours and were not seen thereafter. Contrast-filled common hepatic duct was noted in 28, 18 and 4 cases respectively at 3, 6 and 9 hours after oral contrast ingestion and the CT attenuation values of common hepatic ducts had become progressively decreased. Contrast-filled common bile duct was noted in 28, 18 and 4 cases respectively at 3, 6 and 9 hours and the CT attenuation values of common bile ducts were not changed untill 9 hours but slightly increased at 12 hours. Contrast media was noted in 7, 5, 6 and 5 cases at 3, 6, 9, and 12 hours in cystic duct and 8, 3, 2, 5 cases in duodenum. Contrast-filled cystic duct and duodenum were noted in 24 cases and 19 cases respectively on CT scans after fat meal. The CT attenuation values of gallbladder were increased in sequential periods of time and the difference of density of gallbladder between 3 hours and 6 hours was statistically significant(p=0.0001). The CT attenuation values of gallbladder at 6 hours were heighter than that in 3 hours, statistically. Opacified gallbladder were noted in 2 cases of fatty liver(n=2), 1 case of alcoholic liver disease(n=1), in 1 case of liver cirrhosis(n=1). Patients of gallbladder stone(n=2) or hepatocellular carcinoma (n=2) had non-opacified gallbladder on CT scans. CONCLUSION: The CT scans after oral contrast ingestion can show the morphological and functional aspects of gallbladder better than conventional oral cholecystography and can also show biliary trees and other surrounding structures, so it is helpful method for assessment of not only gallbladder diseases but also other hepatobiliary diseases.
Alcoholics ; Bile Ducts* ; Bile* ; Biliary Tract ; Carcinoma, Hepatocellular ; Cholecystography ; Common Bile Duct ; Contrast Media ; Cystic Duct ; Duodenum ; Eating* ; Gallbladder Diseases ; Gallbladder* ; Hepatic Duct, Common ; Humans ; Liver ; Meals ; Tomography, X-Ray Computed ; Volunteers