The introduction of the strong clover-leafed nail combined with the principle of reaming out the medullary canal and the development of image intensifiers has been extended the indications of the in tramedullary nailing. In this report, an attempt was made to introduce the method and to verify the indications and advantage of retrograde intramedullary nailing of humeral shaft fractures, as compared with the conventionally accepted methods.
Fracture Fixation, Intramedullary ; Humerus ; Methods

This study was carried out to evaluate the relations among workers' general characteristics, work-related behaviors and health related behaviors in a steel industry with 1,134 workers in Pohang. The results were as follows; 1. The mean age of workers was 50 years old and working duration was 15 years and over. Most of them were married(94 5%) and had studied beyond high school (53.0%). They performed three shift work and most of them(63.0%) had experienced industrial accidents. The frequency of noise and dust exposure was defined by a minimum of 6 hours per day, and workers complained about noise exposure(62.9%) and dust(55.6%). There were current smokers(67.7%), current drinkers(74.3%) and current exercising workers(32.3%) in the industry. The number of cigarette consumption in current drinkers was significantly high (13.6 +/- 8.4 pieces/day) and the alcohol consumption in current smokers was significantly high(l04.5 +/- 113.5 g/wk). And the number of cigarette consumption of exercisers was significantly low and the alcohol consumption of exercisers was higher than non-exercisers. 3. The ratio of current smokers on frequent noise in exposed workers versus non-exposed workers was not significantly high but the current drinkers in frequent noise and dust exposed workers was significantly higher than non--exposed. 4. The normal levels of SGOT workers in non-smokers were significantly higher than in current smokers, and the abnormal levels of LFT(SGOT, SGPT, gamma-GTP workers in nondrinkers were significantly high. The normal levels of SBP and DBP workers in current smokers were not significantly high but were significantly high in non-drinkers. 5. The ratio of current smokers in workers unsatisfied with their job and working condition was higher than non-smokers, but the ratio of current drinkers in workers satisfied with their job and working condition were higher. 6. The significant factors for SGOT and gamma-GTP were age, the drinking amount and BMI. But the only significant factor for r-GTP was BMI. The significant factors for DBP were age, the alcohol consumption and BMI And the significant factors for SBP were age, BMI.
Accidents, Occupational ; Alanine Transaminase ; Alcohol Drinking ; Aspartate Aminotransferases ; Drinking ; Dust ; Gyeongsangbuk-do ; Health Behavior* ; Humans ; Male* ; Middle Aged ; Noise ; Smoking ; Steel* ; Tobacco Products

Proliferative vitreoretinopathy (PVR) is a main cause of failure in retinal reattachment surgery. There have been many studies about the inhibition of proliferative vitreoretinophthy with several drugs. Authors investigated the inhibitory effect of proliferative vitreoretinopathy and retinal toxicity with various concentration of daunorubicin after intravitreal injection into the eyes of the pigmented rabbit. 7 pigment rabbit (11eyes) were used as subjects. After lensectomy and vitrectomy, control group was injected dermal fibroblast and F-BSS, and treatment group was injected dermal fibroblast and 5, 10, 15, 30 nmol Daunorubicin. At two weeks after intravitreal injection, both group were enucleated and examined with gross finding, light--microscopy, and electronmicroscopy. In all control group, proliferative vitreoretinopathy was found, but only preretinal membrane formation was found in 5, 10 nmol Daunorubicin injected group. In 15 nmol Daunorubicin injected group, the retina structure was preserved normally. In 30 nmol Daunorubicin injected group, the retinal outer segment was degenerated in microscopic finding. These results show that Daunorubicin has a potent effect on proliferative vitreoretinopathy, especially in 15 nmol, but retinal toxicity is suspected in marethan 30 nmol.
Daunorubicin* ; Fibroblasts ; Intravitreal Injections ; Membranes ; Retina ; Retinal Photoreceptor Cell Outer Segment ; Retinaldehyde ; Vitrectomy ; Vitreoretinopathy, Proliferative*

Authority estimated the concentration of fluorescein sodium in the blood, anterior chamber and vitreous after injection of 10% fluorescein sodium, 25mg/kg, according to the lapse of time. Also intravitreal fluorescein sodium concentration was measured after intravitreal injection of 0.1 % fluorescein sodium 10 micro liter according to the lapse of time. The results were as follows. 1. In the normal rabbits, the concentration of fluorescein sodium in the anterior chamber and vitreous were 159.3 +/- 101.7 X 10(-9) gm/ml and 3.6 +/- 4.7 X 10(-9) gm/ml, respectively after 1 hour of fluorescein sodium intravenous injection. The Cv/Ca was 0.02 +/- 0.028(Cv: concentration of fluorescein in the vitreous) (Ca: concentration of fluorescein in the ant. chamber). 2. After injection of sodium fluorescein in the normal rabbit, the concentration of fluorescein in the blood showed rapid decrease in logarithmic manner in the vitreous, the concentration peaked 1 hour and 2 hours after injection which persisted several hours. 3. The concentration of fluorescein sodium in the vitreous after intravitreal injection of fluorescein decreased at logarithmic rate which disappeared 24 hours after injection.
Anterior Chamber ; Ants ; Fluorescein* ; Injections, Intravenous ; Intravitreal Injections ; Pharmacokinetics* ; Rabbits

Clostridium difficile is the most common nosocomial pathogen of the gastrointestinal tract. Pseudomembranous colitis occurs as a result of a severe inflammatory response to Clostridium difficile toxins. Pseudomembranous colitis is an increasingly frequent cause of morbidity and mortality among elderly hospitalized patients. Diarrhea is the most common manifestation. According to the literature, stools are almost never grossly bloody, and range from soft and unformed to watery or mucoid in consistency. We now report the cases of three patients with pseudomembranous colitis whose main clinical manifestation was hematochezia.
Aged ; Clostridium difficile ; Diarrhea ; Enterocolitis, Pseudomembranous ; Gastrointestinal Hemorrhage ; Gastrointestinal Tract ; Humans

The blood-retinal barrier, that outward movement from the eye into the blood appears to predominate and the penetration into the eye of only a few important metabolic products is allowed, is particularly tight non-leaky junction on blood ocular barrier. In order to investigate the extent of destruction in blood retinal barrier after injection of silicone oil in the vitreous of the rabbit, author serially studied the change of fluorescein concentration in vitreous using the HPLC, ERG changes, and histopathologic changes of the retina. The results were belows, 1. The changes of fluorescein concentration in the vitreous showed increasing tendency, with time. The concentration of fluorescein were 0.008 micro/ml in 1st week, 0.069 micro/ml in 2nd week, 0.058 micro/ml in 3rd week, 0.325 micro/ml in 4th week, respectively. 2. The amplitude of photopic b wave in normal rabbit was lower than that of scotopic b wave, but there wasn't significant difference in latency between photopic and scotopic b wave. The amplitudes of b wave in silicone oil injected eyes showed lower voltage than that of normal eyes. 3. The amplitudes of b wave in silicone oil injected eyes were 210 micro V at 1st week, 150 micro V at 2nd week, 72 micro V at 3rd week, 63 micro V at 4th week in average. They showed prominent decrease in voltage from 1st week to 3rd week, but decreased slightly from 3rd week to 4th week. 4. Histopathologically, the retinal changes of the silicone oil injected eyes in 3rd week showed increased cellularity in ganglion cell layer and presented many vacuoles. In 4th week, ganglion cells were decreased but vacuoles were more increased in number.
Blood-Retinal Barrier* ; Chromatography, High Pressure Liquid ; Fluorescein ; Ganglion Cysts ; Rabbits* ; Retina ; Retinaldehyde ; Silicone Oils* ; Vacuoles

Various ophthalmic complications can occur after intranasal sinus surgery due to the closed anatomic relationship between orbit and paranasal sinuses. The authors experienced a patient who had complained of sudden proptosis and loss of vision in his right eye 2 days after Caldwell-Luc operation from the otolaryngologic clinic. Fundoscopic finding showed cherry-red spot, scattered retinal hemorrhage, retinal edema, arteriovenous obstruction sign. Emergent decompression surgery was done, under the impression of retinal vessel obstruction caused by orbital compression, and his visual acuity improved moderately after this procedure.
Decompression ; Exophthalmos ; Humans ; Orbit* ; Papilledema ; Paranasal Sinuses ; Retinal Hemorrhage ; Retinal Vessels* ; Retinaldehyde* ; Visual Acuity

The purpose of this study was to standardize normal EOG values in Koreans. The subject were 23 normal Koreans varying in age 16-40 yrs with no ocular abnormality or disease. EOG was recorded by Life-Tech instrument Model 7310 ERG/EOG stimulator, Model 7101 ERG/EOG analyzer. The result were as follows. Dark trough potential was 235.65 +/- 71.59 uV, Light Peak Potential was 402.60 +/- 103.09 uV, EOG ratio(Lp/Dt) was 1.74 +/- 0.23, Dark trough time was 14-15 minutes, and light peak time was 10 minutes.
Electrooculography

The purpose of this study was to assess the energy value of breakfast and its relation to total daily nutrient intake and serum lipid. Dietary intakes were evaluated through the 3-day dietary recalls(interview for 1day and self-report for 2 days) from 333 Korean urban adults aged 20-49 year. Serum lipids in fasting blood samples were measured form 98 of those 333 adults. Low energy breakfast(<15% of daily energy intake) was consumed by 22.6% of males and 18.5% of females. 59.4 of males and 43.3% of females consumed a breakfast of average energy intake(15-25% daily energy intake) ; and 18.1 of males and 38.2% of females consumed a significant contribution to a total daily nutrient intake. The daily nutrient intake except crude fiber and vitamin A, B, B, and C in males and except vitamin C in females significantly increased as the energy value of breakfast increased. The differences in energy and nutrient intakes at breakfast were not made up for by other meals. To make matters worse, the satisfactory-energy breakfast group took more energy at dinner compared with the low-energy and average-energy breakfast group took more energy at dinner compared with the low-energy and average-energy breakfast groups in females. Among serum lipid parameters, TG was negatively correlated with energy provided at breakfast, and total cholesterol and LDL-cholesterol had a negative correlation with energy and carbohydrates provided at breakfast in males. For females TG was positively correlated with the ratio of carbohydrates to energy at breakfast but negatively correlated with the ratio of fat to energy at breakfast. These results suggest that satisfactory energy intakes at breakfast have positive effects on the adequacy of daily nutrient intake and may positively affect the serum lipid status.
Adult* ; Ascorbic Acid ; Breakfast* ; Carbohydrates ; Cholesterol ; Fasting ; Female ; Humans ; Male ; Meals ; Vitamin A

PURPOSE: The morphogenic mechanism of tetralogy of Fallot is known to be an antero-superior deviation and hypertrophy of the subpulmonary infundibulum. We performed this study to measure the subpulmonary infundibulum in patients with tetralogy of Fallot and compare those with normal control. METHODS: Echocardiographic data and medical reports of 12 patients, with classical tetralogy of Fa11ot who were diagnosed echocardiographically from Dec. 1996 to Jan. 1999 in Kyungpook National University Hospital, were retrospectively reviewed. A control group consisted of 11 children who underwent a complete echocardiographic examination for a heart murmur and were found to be structually norrnal. Measurements of the subpulmonary infundibulum were performed in systolic still frames with the subxiphoid short axis view. RESULTS: Compared with the normal control children, the following indexed infundibular dimensions in patients with tetralogy of Fallot were significantly smaller' volume, length, cross-sectional area, diameters of pulmonary valve annulus, main, left and right pulmonary arteries, PA index and McGoon ratio. The following measurements were increased in tetralogy patients ' the angle between infundibular septum and ventricular septum, and infundibular free wall thickness. CONCLUSION: We confirmed both antero-superior deviation of infundibular septum and infundibular hypoplasia as morphologic abnormalities in tetralogy of Fallot. We also revealed relatively equal contributions of shortening of infundibular length, and increased infundibular septal and free wall thickness to infundibular hypoplasia.
Axis, Cervical Vertebra ; Child ; Echocardiography ; Gyeongsangbuk-do ; Heart Murmurs ; Humans ; Hypertrophy ; Pulmonary Artery ; Pulmonary Valve ; Retrospective Studies ; Tetralogy of Fallot* ; Ventricular Septum