The aortic dissection is an acute aortic syndrome, caused by an intimal tear and subsequent splitting of the media by the pulsatile blood flow. Though there would be differences in the origin of aortic dissection and therapeutic modalities, the intermediate and long-term prognoses are poor. Endovascular Stent-graft implantation is a revolutionary technique in the treatment of aortic dissection. The endovascular stent grafting in aortic dissection is less invasive and feasible method and is an effective tool for closing the entry site and promoting clot formation, reducing the size of the false lumen. Therefore, endovascular Stent-graft implantation makes possible the desirable remodelling of aorta. We report 33 year-old male with aortic dissection in the thoracic aorta, which was treated with endovascular Stent-graft implantation. Over the favorable remodelling, his dissection was healed completely by the endovascular treatment using Stent-graft.
Adult ; Aorta ; Aorta, Thoracic* ; Blood Vessel Prosthesis ; Humans ; Male ; Prognosis

In order to reduce the test time in real ear hearing-aid fitting for children, the validity of applying the average real ear to coupler differences (RECDs) in prefitting procedure using a 2cc coupler measurement system was evaluated by checking whether the majority of people's RECDs might occur within 5 dB of the average RECDs (N = 116) in each test frequency and age group. The percentages of occurrence were around 90% in test subjects' RECDs in saturation sound pressure levels (SSPLs) and around 70% in gain in each important test frequency. Appropriate test frequencies in prefitting are 500, 1000, 1500 and 2000 Hz.
Adolescence ; Adult ; Aged ; Child ; Child, Preschool ; Ear ; Hearing Aids* ; Human ; Infant ; Middle Age ; Otolaryngology/methods* ; Otolaryngology/instrumentation* ; Prosthesis Fitting/methods* ; Time Factors

We examined excitotoxicity, putatively a major mechanism of ischemic neuronal death, in primary rat retinal cultures. Retinal cultures were prepared from newborn rats (day 1 or 2). Exposure of these cultures (DIV8-10)to NMDA or kainate induced neuronal death. Furthermore, MK-801 or CNQX each partially attenuated glutamateinduced neuronal death, suggesting that both NMDA and kainate receptors mediate it. Thy-1(+) retinal ganglion neurons, like neurons as a whole, were equally injured by NMDA and by kainate. However, GABA(+) or calbindin (+) neurons of the inner nuclear layer were resistant to NMDA, but highly vulnerable to kainate. These neurons may have AMPA/kainate receptors that are highly permeable to Ca2+, as they take up cobalt with kainate stimulation. These results suggest that the AMPA/kainate receptor, rater than the NMDA receptor, may mediate this pattern of selective neurnonal death.
6-Cyano-7-nitroquinoxaline-2,3-dione ; Animals ; Calbindins ; Cell Death* ; Cobalt ; Dizocilpine Maleate ; GABAergic Neurons ; Ganglion Cysts ; Humans ; Infant, Newborn ; Kainic Acid ; N-Methylaspartate ; Neurons ; Rats ; Receptors, Kainic Acid ; Retinal Neurons* ; Retinaldehyde*

Adenosis tumor is a ra re tumor of the breast and primarily consists of adenosis. Authors report a case of surgically proved adenosis tumor in a 31-year-old woman. Mammogram showed a Iobulated, well-circumscribed mass with several surrounding radiolucent halos. In the center of the mass several linear radiolucent densities were seen with the appearance of a conglomerated well-circumscribed mass such as fibroadenoma. These linear radiolucent densities were consistent with the fat between the fibrous sclerosis in pathologic specimen. Ultrasonogram showed a well-circumscribed mass with homogeneous low echogenicity, partial posterior enhancement, and bilateral acoustic shadowings.
Acoustics ; Adult ; Breast* ; Female ; Fibroadenoma ; Humans ; Sclerosis ; Shadowing (Histology) ; Ultrasonography

We successfully closed the isolated patent ductusarteriosus(PDA) in 2 female patients using the Rashkind Double-Disc Occlusion system. nonsurgical closure of PDA usin plug was introduced by Porstmann in 1968 through transfemoral artery catheter and using umbrella by Rashkind in 1977 througth venous site. There has been continued improvement and simplification of the equipment as well as in the implantation technique. Nowaday, a multicenter study was conducted to test the safety and effectiveness of this interventioal method in States. Successful closure rate was high but some problems were reported such as embolization, abnormal deployment and residual shunt. Residual shunt was visualized by aortography in our both cases immediately after intervention but continuous murmur could not be heard in both cases. Oxygen step-up disappeared immediately after occluder implantation in both cases. Complete occlusion was expected with thrombus in near future.
Aortography ; Arteries ; Catheters ; Ductus Arteriosus, Patent* ; Female ; Humans ; Oxygen ; Thrombosis

Three combinations of cloths were evaluated for the protective effects of different kinds of clothings in cold environments. Table 1 shows tile components of tile three models of clothings. A prototype was made by putting a sheet of vinyl at the middle layer of raw cotton in a fabric-quilt cloths. A glove mannequin was covered by each of these cloths. The globes contained 1,000 cc of hot water about 40 degrees C. Tele-thermisters were fixed in order to check the temperature of cloths space and water temperature for evaluation of caloric-loss and climate of clothings. Results are summarized as follows : 1) Without wind, there is no significant difference of air temperatures between ski-parka and quilt wear clothing. 2) The prototype with vinyl sheet best protects against wind, the next is the ski-parka. Quilt-wear protects the least. 3) It is well-known that a working-clothing needs not have any separate liners nor outers. 4) For innermost layer of a clothing preventing cold, a cotton-fabrics is recommended and a water-proof cloths for outer layer. 5) Heat-loss was calculated from the cooling degrees of water. Calorie-loss was 910ca1/m2/hr. when bared, but with the prototype of vinyl sheets the calorie-loss was 350cal/m2/hr. (38.5% of bared). Quilt-wear and ski-parka were 380(41.8%) and 440 cal/m2/hr. (48.4%) respectively.
Climate ; Clothing* ; Manikins ; Water ; Wind*

No abstract available.
Ear, External* ; Humans*

No abstract available.
Noise* ; Organ of Corti*

PURPOSE: The normal flora, which was suggested to prevent infection, is acquired first from the birth canal and develops by dietary factors. Here presents a case-control study, aimed to evaluate the postnatal acquisition factors relating to the achievement of the normal flora in infants with urinary tract infection (UTI). METHODS: 115 UTI infants, admitted at Ewha Womans University Mokdong Hospital from 2004 to 2005 and 116 age-matched control infants, who had visited well baby clinic, were evaluated. The suggested postnatal acquisition factors of the normal flora such as vaginal delivery, breast feeding, probiotics and yogurt intake and their relationship with UTI were evaluated. RESULTS: The rate of vaginal delivery was 50%(58/115) in UTI infants, which was not significantly different from 60%(69/116) in control infants(P>0.05). In the infants with UTI, the feeding pattern(breast milk 19%, mixed 26%, formula 55%) was significantly different from that(44%, 19%, 37%) in control infants(P<0.05). This significant difference was shown only in infants less than 6 months of age, but was not in infants over 6 months of age. The rate of probiotics intake in UTI infants was 4%(4/115), which was significantly lower than 27% (32/116) in control infants(P<0.05). The rate of regular intake of yogurt in UTI infants over 6 months of age was 27%(6/23), which was not significantly different from 35%(8/23) in control infants(P>0.05). The odds ratios of breast feeding and probiotics intake against UTI were significantly low as 0.30 (95% CI 0.17-0.55)(P<0.01) and 0.03 (95% CI 0.01-0.07)(P<0.01). CONCLUSION: The significantly lower rates of breast feeding and probiotics intake in UTI infants suggest that these dietary factors might have preventive effects in infants with UTI.
Breast Feeding ; Case-Control Studies ; Female ; Humans ; Infant* ; Milk ; Odds Ratio ; Parturition ; Probiotics ; Urinary Tract Infections* ; Urinary Tract* ; Yogurt

OBJECTIVE: We undertook this study to find out clinical characteristics and prognostic factors of neonatal survival in nonimmune hydrops fetalis (NIHF). METHODS: From Oct. 1988 to Feb. 2001, 54 cases of nonimmune hydrops fetalis diagnosed at Seoul National University Hospital (SNUH) were included in our study. The incidence and perinatal mortality were investigated. The diagnostic work-up for associated conditions (or etiology) included detailed ultrasonography, karyotyping, fetal echocardiography, infection work-up (TORCH, parvovirus), and autopsy (if fetus was dead). Among 54 cases, 20 cases of liveborns were divided into two groups. Group I survived beyond neonatal period (survived>28 days) and group II did not (expired3 (OR=21, CI 1.77, 248.1; p<0.05), and 5-min AS>3 (p<0.01). CONCLUSION: Over 3 of 1-min and 5-min AS were meaningful factors for neonatal survival in NIHF.
Apgar Score ; Autopsy ; Echocardiography ; Female ; Fetofetal Transfusion ; Fetus ; Gestational Age ; Hydrops Fetalis* ; Incidence ; Karyotyping ; Parturition ; Perinatal Mortality ; Pleural Effusion ; Polyhydramnios ; Pregnancy ; Seoul ; Ultrasonography