Purpose of this study is to find out proper means of estimating the urinary mercury excretion the normal individuals. Whole void volume was collected every 2 hours beginning from 6 o'clock in the morning until 6 o'clock next morning. Mercury excretion in each urine specimen was measured by NIOSH recommended dithizone colorimetric method (Method No. : P & CAM 145). Urinary concentration of mercury was adjusted by two means : specific gravity of 1.024 and a gram of creatinine excretion per liter of urine comparing the data with the unadjusted ones. Mercury excretion in 24-hour urine specimen was calculated by adding the amounts measured with the hourly collected specimens of each individual. Statistical analysis of the urinary mercury excretion revealed the following results : 1. Frequency distribution curve of mercury excreted in urine of hourly specimens was best fitted to power function expressed in the form of y=ax(b), Adjustment of the urinary mercury concentration by creatinine excretion was shown to be superior (y=1674x(-1.52)), r(2)=0.95) over nonadjustment(y=2702x(-1.57)), r(2)=0.92) and adjustment by specific gravity of 1.024(y=4535x(-1.66), r(2)=0.93). 2. Both log-transformed mercury excretion in hourly voided specimens and mercury excretion itself in 24 hour specimens showed the normal distributions. 3. The frequency distribution of mercury adjusting the urinary concentration of mercury by creatinine excretion was best fitted to a theoretical normal distribution with the sample means and excretion was best fitted to a theoretical normal distribution with the sample means and standard deviation than those unadjusted or adjusted with specific gravity of 1,024. 4. Average urinary mercury excretions in 24-hour urine specimen in an individual were as follows : a) Unadjusted urinary mercury excretions. mean and standard deviation :18.6+/-13.68 microgramHg/liter. median : 16.0 microgramHg/liter. range : 0.0-55.10 microgramHg/liter. b) Adjusted with specific gravity. mean : 20.7+/-11.76 microgramHg/liter x 0.024/(S.G.-1.000). median : 20.7 microgramHg/liter x 0.024/(S.G.-1.000). range : 0.0-52.9 microgramHg/liter x 0.024/(S.G.-1.000). c) Adjuested with creatinine excretion. mean and standard deviation : 10.5+/-6.98 microgramHg/g creatinine/liter. median : 9.4 microgramHg/g creatinine/liter. range : 0.0-26.7 microgramHg/g creatinine/liter. 5. No statistically significant differences were found between means calculated from 24-hour urine specimens and those from hourly specimens transformed into logarithmic values. (P<0.05).
Creatinine ; Dithizone ; Gravitation ; National Institute for Occupational Safety and Health (U.S.) ; Specific Gravity

No abstract available.
Histiocytosis*

No abstract available.
Enterococcus*

An aberrant right subclavian artery, the most common congenital anomaly of the aortc arch, is rarely symptomatic during the infancy, if an anomalous origin of a right common carotid artery is also associateda varient of innomiate artery compression syndrome. We experienced a case of an aberrent right subclavian artery associated with an anomalous origin of the right common carotid artery in a female newborn, who showed severe respiratory distress soon after birth. The diagnosis was confirmed by aortogram and operative findings. the ligature and section of the aberrent right subclavian artery resulted in improvement of respiratory distress. A brief review of the related literature is also presented.
Arteries ; Brachiocephalic Trunk* ; Carotid Artery, Common ; Diagnosis ; Female ; Humans ; Infant, Newborn ; Ligation ; Parturition ; Subclavian Artery*

No abstract available.
Busan* ; Cytogenetics*

No abstract available.
Mastocytoma* ; RNA, Antisense*

These radiologic studies were carried out on 265 cases of silicosis which were diagnosed clinically atindustrial Accident Hospital affiliated with Catholic Medical Collage, suring the period of 3 years from 1974 to1976. 265 cases of silicosis consisted of 96 cases (35%) of coal miner, 91 cases (34%) of coal choicer and 82cases (31%) of others. The average age was 42.2 years and average working period was 9.2years. Qualitative andquantitative features in the analysis of roentgen findings were based on UICC/Cincinnati and KLO classification.The qualitative features showed 26% of "p" opacity, 46% of "q" opacity 4% of "r" opacity as rounded profusion and5% of "s" opacity, 11% of "t" opacity, 2% of "u" opacity as irregular profusion of small opacities.Large opacitiesshowed 3% of group A, 2% of group B and 1% of group C. Quantitative features revealed 25% of Type 1, 54% of Type2, 16% of Type 3 and 5% of Type 4. The qualitative and quantitative features showed significant differences as ageand working period increased with age and working period. Major complications were pulmonary emphysema,tuberculosis and pleural abnormalities.
Coal ; Miners ; Silicosis

Double-outlet right ventricle is defined as follows: both great arteries arise completely or nearly completelyfrom the right ventricle; neither semilunar valve is in fibrous continuity with either atrioventricular valve; andusually a ventricular septal defect is present and the only outlet from the left ventricle. A total of 44 cases ofdouble-outlet right ventricle is analyzed, in which cineangiocardiographies were done at the Department ofRadiology, Seoul National University Hospital in recent 4 year and 6 months, with specific reference to thesegmental combinations, the height of conus the relationship of great arteries, the location of ventricular septaldefects, and associated anomalies. The resuslts were as follows; 1. Among 44 cases, 36 cases had normal cardiacposition, 4 cases had dextrocardia with situs inversus, 2 cases had dextrocardia with situs solitus, 1 case hadlevocardia with situs inversus, and another 1 case had mesocardia with situs ambiguus. 2. Segmental sets were[S.D.D] in 36 cases, [I.L.L] in 3 cases, [I.D.D] in 2 cases, [S.D.L], [S.L.L] and [A,D,D] in 1 case respectively.3. All cases had bilateral conus. Aortic valve rings were same level as pulmonary valve rings in 25 cases, lowerthan pulmonary valve rings in 17 cases in which 15 cases were type A., and higher than pulmonary valve rings in 2cases. 4. The relation of the great arteries were normal in 15 cases, side-by side in 13 cases, dextromalpositionin 13 cases, and levomal position in 3 cases. 5, The position of the ventricular septal defects with respect tothe origins of the great arteries is subaortic (type A & type B) in 23 cases, subpulmonary (type C) in 13 cases,double committed (type D) in 3 cases, and uncommitted (type E) in 5 cases. 6. Associated cardiac malformations arepulmonary stenosis in 24 which had all cases of type A and type E, aortic stenosis in 6 which were only in type C,left SVC in 6, abnormality of atrioventricular valve in 5, single coronary artery in 4, interrupted IVC in 1,obstructive VSD in 2, ASD in 4, PDA in 4, right aortic arch with levocardia in 5, and ectopic spleen withmesocardia in 1 case. 7. Biplane cinecardioangiogram must be performed in both ventricles to define the VSD andits relationship to the great arteries, and, if necessary, should also be performed in the aorta to rule outcoarctation and coronary artery abnormalities, and in the pulmonary artery to visiualize pulmonary venous returnand mitral valve. Angiography is of crucial importance in differentiating double-outlet right ventricle fromtetralogy of Fallot and complete transposition of the great arteries.
Angiography ; Aorta ; Aorta, Thoracic ; Aortic Valve ; Aortic Valve Stenosis ; Arteries ; Constriction, Pathologic ; Conus Snail ; Coronary Vessels ; Dextrocardia ; Double Outlet Right Ventricle ; Heart Septal Defects, Ventricular ; Heart Ventricles ; Heterotaxy Syndrome ; Levocardia ; Mitral Valve ; Pulmonary Artery ; Pulmonary Valve ; Seoul ; Situs Inversus ; Spleen

Hemophilia is a sex-linked recessive hereditary bleeding disorder occurring only in the male and transmitted by the female. This disease is characterized by a bleeding tendency due to prolonged coagulation time causing by deficiency of one of three plasma factors, such as anti-hemophilie globulin(A. H. G.), plasma thromboplastin component(P. T. C.) and plasma thromboplastin antecedent (P. T. A.) for first phase of coagulation process. The majority of hemophilia, 74% is due to a deficiency of A. H. G., 15% to a deficiency of P. T. C. and remaining 11% to a deficiency of P. T. A. as outlined in the literature. This case, 18 years old male, is complained of repeated hemorrhagic manifestations, residual deformity with stiffness of the hip and knee joints, and limping following minor trauma has developed since early childhood. Radiologically, the hip and knee joints were involved, showing the findings of typical hemophilic arthropathy. Laboratory finding showed markedly prolonged coagulation time. Diagnosis was confirmed to be plasma thromboplastin antecedent deficiency homophilia.
Congenital Abnormalities ; Diagnosis ; Factor XI ; Factor XI Deficiency ; Female ; Hemophilia A ; Hemorrhage ; Hip ; Humans ; Knee Joint ; Male ; Plasma ; Thromboplastin

Spondylolisthesis is characterized by forward displacement of the vertebral body with bilateral defects of the partes interarticulares. Because the progression of slipping occurs in young adults, difficult problems are present in the treatment of this condition. Watkins(1953) described the technique of posterolateral fusion between transverse processes, which was accepted in the dynamics of spine motion. In this procedure, grafted bone is placed close to the center of axis of the spine motion and so, bony fusion is not affected by flexion motion but distracted by a Iateral shearing force. The role played by the Norton-Brown back brace is in the restriction of lateral bending. However it pormits somewhat flexion motion of the spine. It is suggested that early ambulation may be possible without the interference of bony union after the posterolateral fusion operation when this brace is applied instead of longterm cast immobilization. In clinical analyses and follow-up studies after operative treatments in 55 patients with spondylolisthesis, the following results were obtained: 1. 30 patients (54.6%) were distributed between 21 and 40 years of age. 2. Males (52.7%) were slightly more than females (47.3%). 3. Among clinical symptoms and signs, low back pain was most common (87.3%). Sciatica was present in 45.5% 4. Duration of symptoms at admission was variable. 5. 15 patients (27.3%) had a previous history of trauma. 6. 5th lumbar vertebra was most commonly involved (74.5%) followed by the 4th lumbar vertebra(23.6%). There was a case(1.9%) in which the 5th and 4th lumbar vertebrae were involved. 7. Degrees of slipping were divided into 4 grades (Grade I–IV) by Meyerdings method. Grade 1 was most common (72.2%), Grade II 22.2% and Grade III 5.6%. 8. In follow-up studies of the operative treatment, laminectomy & H-graft were satisfactory in 84.9% and posterolateral fuion in aII cases (13 patients). 9. Early ambulation was preferred without healng disturbance in a case in which the Norton-Brown back brace was applied after posteroIateraI fusion and also, other advantages were expected as follws: a) Elimination of prolonged cast immobiIization b) Financial aid c) Early return to work d) Mental comfort.
Braces ; Early Ambulation ; Female ; Follow-Up Studies ; Humans ; Immobilization ; Laminectomy ; Low Back Pain ; Lumbar Vertebrae ; Male ; Methods ; Return to Work ; Sciatica ; Spine ; Spondylolisthesis ; Transplants ; Young Adult