No abstract available.
Adolescent* ; Child* ; Humans ; Thyroid Gland* ; Thyroid Neoplasms*

No abstract available.
Adenocarcinoma*

BACKGROUND AND OBJECTIVES: One of problems for the management of horizontal semicircular canal benign paroxysmal positional vertigo (HSC-BPPV) is the difficulty of determining the affected ear using Ewald's second law. The purpose of this study is to develop the new "Bow and Lean Test (BLT)" to determine easily the affected ear of HSC-BPPV and evaluate its efficiency. MATERIALS AND METHOD: We compared the efficiency between the classical method and BLT in 26 patients with HSC-BPPV. The classical method is based on Ewald??s second law comparing the intensity of nystagmus or symptoms in head roll test. BLT is based on the direction of both "bowing nystagmus" and "leaning nystagmus" at head's bowing and leaning state on sitting position. The affected ear is the same direction of bowing nystagmus in canalolithiasis and the same direction of leaning nystagmus in cupulolithiasis. RESULTS: In 26 patents (15 canalolithiasis, 11 cupulolithiasis), 3 (11.5%) patients did not show a prominent affected ear in the classical method, and 7 (26.9%) patients showed the different affected ear between two methods. All 10 patients were successfully treated with just one trial of barbecue rotation based on the affected ear in BLT. Three patients did not show any bowing or leaning nystagmus. The side with canal paresis in all 4 patients, who showed significant canal paresis in bithermal caloric tests, was equal to the affected ear based on BLT. CONCLUSION: "Bow and Lean Test" (also called "Choung's test") is a new method which can easily determine the affected ear of HC-BPPV.
Caloric Tests ; Ear ; Head ; Humans ; Jurisprudence ; Paresis ; Semicircular Canals ; Vertigo*

BACKGROUND AND OBJECTIVES: One of problems for the management of horizontal semicircular canal benign paroxysmal positional vertigo (HSC-BPPV) is the difficulty of determining the affected ear using Ewald's second law. The purpose of this study is to develop the new "Bow and Lean Test (BLT)" to determine easily the affected ear of HSC-BPPV and evaluate its efficiency. MATERIALS AND METHOD: We compared the efficiency between the classical method and BLT in 26 patients with HSC-BPPV. The classical method is based on Ewald??s second law comparing the intensity of nystagmus or symptoms in head roll test. BLT is based on the direction of both "bowing nystagmus" and "leaning nystagmus" at head's bowing and leaning state on sitting position. The affected ear is the same direction of bowing nystagmus in canalolithiasis and the same direction of leaning nystagmus in cupulolithiasis. RESULTS: In 26 patents (15 canalolithiasis, 11 cupulolithiasis), 3 (11.5%) patients did not show a prominent affected ear in the classical method, and 7 (26.9%) patients showed the different affected ear between two methods. All 10 patients were successfully treated with just one trial of barbecue rotation based on the affected ear in BLT. Three patients did not show any bowing or leaning nystagmus. The side with canal paresis in all 4 patients, who showed significant canal paresis in bithermal caloric tests, was equal to the affected ear based on BLT. CONCLUSION: "Bow and Lean Test" (also called "Choung's test") is a new method which can easily determine the affected ear of HC-BPPV.
Caloric Tests ; Ear ; Head ; Humans ; Jurisprudence ; Paresis ; Semicircular Canals ; Vertigo*

Bacterial endocarditis is a disease with protean manifestations whose presentation has recently changed greatly. Right-sided endocarditis associated with congenital heart lesions is now relatively less common. Patients with ventricular septal defect are at risk for right-sided endocarditis, but its incidence is low in children and adolescents. The organism is frequently a staphylococcus and the clinical course is dominated by septic pulmonary infarction and septicemia. We reported two cases of pulmonic vegetation and pulmonary infarction associated VSD with brief review of literature.
Adolescent ; Child ; Endocarditis ; Endocarditis, Bacterial ; Heart ; Heart Septal Defects, Ventricular ; Humans ; Incidence ; Pulmonary Infarction* ; Sepsis ; Staphylococcus

PURPOSE: Although many useful articles appear in the journals published in Korea, they are not always cited by researchers mainly due to absence of efficient searching system. The authors made a program with 6 predefined filtering forms to detect published articles rapidly and accurately. MATERIALS: The program was coded using database management system CA-Clipper Version 5.2 (Computer Associates International, Inc.) through preliminary work for 1 year. We used 486 DX II (8 Mbyte RAM, VGA, 200 MByte Hard Disk), Ink-jet Printer (Hewlett Packard Company), and MS-DOS Version 5.0 (Microsoft Co.). We inputed total of 1986 articles published in the Journal of the Korean Radiological Society from 1981 to 1993. METHODS AND RESULTS: The searching time was 10 to 15 seconds for each use. We had very flexible user interfaces and simplified searching methods, but more complicated filterings could also be performed. CONCLUSION: Although the previous version have had some bugs, this upgrade version resolved the problems and fitted in searching articles. The program would be valuable for radiologist in searching articles published not only in the Journal of the Korean Radiological Society, but also in the Journal of the Korean Society of Medical Ultrasound and the Korean Journal of Nuclear Medicine.
Database Management Systems ; Humans ; Korea ; Microcomputers* ; Nuclear Medicine ; Ultrasonography

Many plastic surgeons have been tried to attain ultimate goal lies in restoring the original shape and function of the facial aesthetics, in reconstruction of deformities resulting from facial hypertrophic scar and skin defects. This would require consideration in terms of hanmony in color match, skin texture and thickness. Various forms of skin graft, local flap, distant flaps, free flap and tissue expander have been employed in restoring skin defects and deformities of the cheek and submental area, and the use of large local flaps utilizing the cervicofacial skin flaps or tissue expander have brought about improved aesthetic results. the authers have obtained satisfactory results in treating 2 cases of wide hypertrophic scar of the cheek and submental area with combination of wide cervical flap and intraoperative tissue expansion using foley catheter. the merits of this combined operative methods are as follows : 1. It is not necessory to keep tissue expander for a long period. 2. This technique is able to diminish the cost of multistage operation and using of tissue expander. 3. There is no psychologic problems due to undesirable facial appearance during tissue expansion period. 4. Rapid intraoperative tissue expansion by foley catheter during elevating wide cervical flap can allow to dissect one, preserving the perforators without bleeding in a short time. 5. Wide cervical flap and additional expanded tissue by means of intraoperative tissue expansion could brought into suturing avoiding tension of oral commissure and lip eversion. 6. Preservation of perforators of cervical flap above the platysma muscle raised flap's survival rate and then this result could prevent distal ischemic necrosis after flap coverage.
Catheters ; Cheek ; Cicatrix, Hypertrophic* ; Congenital Abnormalities ; Esthetics ; Free Tissue Flaps ; Hemorrhage ; Lip ; Necrosis ; Skin ; Survival Rate ; Tissue Expansion Devices ; Tissue Expansion* ; Transplants

No abstract available.
Anoxia* ; Neurons*

BACKGROUND: The effects of various concentration (20, 50, 100 micrometer) of meperidine were studied in isolated guinea pig and rat ventricular papillary muscles. METHODS: Isometric force of guinea pig ventricular papillary muscle was examined in normal and 26 mM K+ Tyrode's solution. Experiments using rat and guinea pig papillary muscle under normal and low Na+ (40 mM), respectively, were performed to evaluate the effect on Ca2+ release from the sarcoplasmic reticulum (SR). Normal and slow action potentials (APs) were evaluated by using conventional microelectrode technique. Rapid cooling contractures were performed. RESULTS: Meperidine caused dose-dependent depression of peak force from rested-state (RS) to 3 Hz stimulation rates in guinea pig papillary muscles. Conduction block was frequently noted at high stimulation rates (2 and 3 Hz) at 150 micrometer meperidine. ~40% depression of peak force was shown at RS contraction under low Na+ Tyrode's solution, although contractile depression was not shown at RS and low stimulation rates in rat papillary muscles. 100 micrometer naloxone did not reverse the contractile depression caused by 100 micrometer meperidine. Either depression of dV/dt-max from 0.1 to 3 Hz stimulation rates or rate-dependent depression among 1, 2 and 3 Hz could be observed at 150 micrometer meperidine. In 26 mM K+ Tyrode's solution, 50 and 100 micrometer meperidine caused dose-dependent depression of early and late force development. In slow APs, changes of dV/dt-max were not shown at 100 micrometer meperidine. ~40% depression of contracture induced by rapid cooling following 2 Hz stimulation rates was shown at 100 micrometer meperidine. CONCLUSION: The direct myocardial depressant effect of meperidine seems likely to be caused by local anesthetic properties of meperidine, not by the opioid action. Inhibition of SR Ca2+ release, and decreased intracellular Ca2+ secondary to Na+ channel blocking action of meperidine may at least in part be related to direct myocardial depression.
Action Potentials ; Anesthetics* ; Animals ; Contracture ; Depression* ; Guinea Pigs ; Meperidine* ; Microelectrodes ; Myocardium* ; Naloxone ; Papillary Muscles ; Rats ; Sarcoplasmic Reticulum

Focal fatty change of the liver is a nodular lesion which is a rarely described and poorly characterized entity. The hepatic nodule measured 1.4cm at its maximum diameter, was subcapsular in location and occurred adjacent to the falciform ligament. Microscopically it was composed of hepatic tissue with a preserved lobular architecture. The central venous structures and portal tracts with their triads were regularly placed. The cytoplasm of almost all of the hepatocytes within the nodule was replaced by macrovesicular fat vacuoles with the nuclei displaced. Several large abnormal vessels were found at the margin of the nodule. The nodule was discovered incidentally on postmortem examination of a female infant who proved, at autopsy, to have multiple cardiac anomalies and bronchopneumonia. The possible inadequate local tissue perfusion due to abnormal intrahepatic vessels at this particular location could be augmented by multiple cardiac anomalies culminating in focal ischemia and focal fatty change. When encountered in surgery or on gross examination, it could be confused with other space occupying lesions such as liver cell adenoma, abscess and metastatic lesions.
Fatty Liver/complications ; Fatty Liver/pathology* ; Female ; Heart Defects, Congenital/complications ; Hepatic Artery/abnormalities ; Human ; Infant