A 42-year old man was admitted for treatment of a fracture of the medial condyle of the left femur. After 10 days of cast immbilization of the above mentioned extremity, erythematous papulo-vesicular eruption was noted under the external splintage. We concluded that this was an unusual allergic contact dermatitis which is caused by CaSO4.1/2H20, and proved it by patch test in our clinic.
Calcium Sulfate ; Dermatitis, Allergic Contact ; Extremities ; Femur ; Patch Tests

PURPOSE: To evaluate the success rate of conventional skin dacryocystorhinostomy(DCR), the success rate and postoperative complications were evaluated after the follow-up period of 6~72 months(average 16.7 months), and compared with those of our previous reports on endonasal DCR, at postoperative 6 months(PO6M) and 12 months(PO12M). METHODS: skin DCR was performed in 76 patients, 89 eyes between July 1993 and June 2000 at the Department of Ophthalmology, Yeungnam University College of Medicine. RESULTS: Primary success rate of skin DCR was 93.3%, and the final success rate after revision of mucosal ostium revealed 96.6%. Postoperative complications included 7 cases of silicone tube protrusion and 4 cases of mucosal ostium obstruction. CONCLUSIONS: Primary success rate of skin DCR was 93.3%, and those of endonasal DCR were 92.3%(PO6M) and 89.8%(PO12M). The final success rate of skin DCR was 96.6%, and those of endonasal DCR were 98.4%(PO6M) and 99.2%(PO12M).
Follow-Up Studies ; Humans ; Ophthalmology ; Postoperative Complications ; Silicones ; Skin

No abstract available.
Humans ; Sexual Behavior* ; Uterine Cervical Neoplasms*

Background: Acellular dermal matrices (ADMs) have shown promise in promoting tissue regeneration; however, their integration in challenging cases with limited vertical-axis neovascularization remains difficult. This study investigates whether clinically meaningful transverse-axis neovascularization is identified in ADM engraftment and whether this can be further accelerated by platelet-rich plasma (PRP). Methods: ADM and PRP-soaked ADM were implanted into New Zealand rabbits, and histological analysis was performed at different periods to compare neovascularization. Results: Histological analysis revealed that among 32 biopsy sites, there was transverse-axis neovascularization with an average length of 606.89 μm. When divided into two groups for assessing the impact of PRP on transverse-axis neovascularization, the extent of such neovascularization was measured as 582.99 μm in the control group and 630.79 μm in the experimental group. However, there was no statistically significant difference between the two groups (P=0.693). Conclusion The results of the present study indicate that achieving meaningful transverse-axis neovascularization in implanted ADMs remains a challenge, warranting further investigation into ADM structure and vertical-axis neovascularization.

A murime monoclonal antibody (mAb) specific for the envelope glycoprotein gp120 of human immunodeficiency virus type-I (HIV-1) was chemically coupled to pokeweed antiviral protein (PAP) from Phytolacca americana. The immunotoxin was purified by FPLC using 5200 colum. The purified immunotoxin efficiently bound to HIV-infected T cells as evidenced by fluorescence-activated cell sorter analysis. The immunotoxin selectively killed human T lymphoid lines infected with HIV-lIIIB at less than 250 pM of the immunotoxin cells, while PAP or mAb alone did not have any significant effect on infected cells. The uninfected control T cell lines were not affected. Human cells infected with HIV-2 or other HIV-1 strains were not killed, suggesting that the killing depends completely on the antibody used for coupling. These in vitro results suggest that the PAP-mAb conjugate may be used to selectively remove cells expressing viral antigens from individuals infected with HIV.
Antigens, Viral ; Cell Line ; Glycoproteins ; HIV ; HIV-1 ; HIV-2 ; Homicide ; Humans* ; Immunotoxins ; Phytolacca americana* ; T-Lymphocytes*

This study aimed to ascertain whether medical students would enter a closed area where there was a raging epidemic of an infectious disease with a high fatality rate, and includes reasons for the students entering or refusing to enter. Participants included 50 second-year medical students. They were assigned to read a novel entitled 28, written by Youjeong Jeong, and discuss it in groups. Using their book reports, their decisions of whether or not to enter Hwayang, the city from the novel, and the reasons for their decisions were analyzed; we furthermore investigated the factors affecting their decisions. Among the 50 respondents, 18 students (36%) answered that they would enter, and the remaining 32 students (64%) answered that they would not enter the zone. The reasons given for entering were responsibility (44%), sense of ethics (33%), social duty (17%), and sense of guilt (6%). The reasons the students provided for not entering were inefficiency (44%), worry regarding family (28%), needlessness of sacrifice (19%), and safety not ensured (9%). Students who had four or fewer family members were more likely to enter Hwayang than were students who had five or more family members (odds ratio, 1.85). Students who had completed over 100 hours of volunteer work were more likely to enter Hwayang than were students who had volunteered less than 100 hours (odds ratio, 2.04). Owing to their "responsibility" as a doctor, 36% of medical students answered that they would enter an exclusion zone in an infected district with a high fatality rate. However, 64% answered they would not enter because of "inefficiency." For the medical students it is still a question 'To enter or not to enter?'
Communicable Diseases ; Surveys and Questionnaires ; Ethics ; Guilt ; Humans ; Mortality* ; Odds Ratio ; Rage ; Students, Medical* ; Volunteers ; Writing

The systolic time intervals were measured in 25 normal controls and 23 patients with dilated cardiomyopathy by simultaneous recording of the aortic valve echocardiogram and ECG. These values were compared to corresponding ones obtained from the method using simultaneously recorded phonocardiogram, ECG, and indirect carotid pulse tracings. And we assessed left ventricular function by systolic time intervals in dilated cardiomyopathy. The results were as followings. 1) High degree of correlation(r> or =0.94) was found between the two methods for each intervals, EMS, LVET, PEP, PEP/LVET. 2) In normal controls, PEP/LVET obtained from echocardiographic measurement was 0.31+/-0.02. 3) In the patients with dilated cardiomyopathy, PEP/LVET(0.59+/-0.13) was significantly higher(p<0.001), PEP index was longer(p<0.05), LVET index was shorter(p<0.05) than in normal controls.
Adult* ; Aortic Valve ; Cardiomyopathy, Dilated* ; Echocardiography* ; Electrocardiography ; Humans ; Systole* ; Ventricular Function, Left

Ceramometal crowns are common restorations in fixed prosthodontics because of their casting accuracy, the high strength properties of the metal, and the cosmetic appearance of porcelain. However, deterioration of the initial fit of the metal coping has been observed after the porcelain firing cycle. The distortion due to repeated firing makes it difficult to fit crown margin and elicits microleakage. The major causes of distortion are the residual stress that accumulate during wax-up, casting, cold work and the induced stress caused by the mismatch of porcain-metal thermal contraction. This study examined the marginal fit changes of metal copings in relation to repeated firing and the effects of heat treatment that reduce the distortion resulted from residual stress. The marginal changes of the copings that were treated with conventional method and those treated with heat before repeated firing, were evaluated. The metal die which represented preparations of a maxillary central incisor was fabricated, and 45 wax patterns were cast with nonprecious metal alloys. The heat treatment of each group was performed as follows. Group 1(control) : Casting - Devesting - Cold work - Firing Group 2 : Casting - Heat treatment - Devesting - Cold work - Firing Group 3 : Casting - Deveting - Cold work - Reinvesting - Heat treatment - Devesting - Firing The copings were fired 3 times. After each firing, the marginal fit changes were measured with inverted metallurgical microscope at the 4 reference points located at labial, lingual, and both proximal surface. Measurements were compared, and statistically analyzed. The results were as follows ; 1. In all groups, the highest value of marginal fit changes of the copings studied were found after the first firing cycle. 2. When the distortion of each experimental group at the first firing cycle were compared, group 1 exhibited the greatest changes(20-27micrometer), fullowed by group 2(9-13micrometer), and group 3(8-10micrometer). 3. The copings treated with heat before devesting(group 2) revealed significantly smaller marginal fit changes than the copings treated with conventional method(group 1). (p<0.01) 4. The copings treated with heat after reinvesting(group 3) revealed significantly smaller marginal fit changes than the copings treated with conventional method(group 1). (p<0.01) 5. No siginificant differences in marginal fit changes were found between the copings treated with heat before devesting(group 2) and the copings treated with heat after reinvesting(group 3). (p>0.01)
Alloys ; Crowns* ; Dental Porcelain ; Fires* ; Hot Temperature ; Incisor ; Prosthodontics

Intraductal papillary mucinous neoplasms of the bile ducts (IPMNs-B) are uncommon lesions that are characterized by innumerable papillary fronds that contain fine vascular cores, enriched mucin production and bile duct dilatation. IPMNs-B are histologically similar to intraductal papillary mucinous neoplasms of the pancreas and they are occasionally associated with hepatolithiasis. IPMNs-B are considered to be relatively low-grade malignancy and they merit consideration for aggressive surgery. Thus, early and precise diagnosis is important to maximize patient survival. From July 2002 to March 2006, we identified four patients with IPMNs-B at our hospital. In three patients, intrahepatic or extrahepatic bile duct stones were associated with their condition. Computed tomography and magnetic resonance cholangiography were done in all four cases and this demonstrated marked dilatation of the biliary tree. Endoscopic retrograde cholangiography was done in two cases and a large amount of mucin that was draining from the patulous orifice of the duodenal papilla was seen on endoscopy. However, two cases were initially misdiagnosed as intrahepatic cholangiocarcinoma or choledochal cyst with intrahepatic bile duct stones. All the cases underwent ipsilateral hemihepatectomy with caudate lobectomy. Histologically, one case showed to be adenoma, one case was borderline and two cases were invasive adenocarcinoma.
Adenocarcinoma ; Adenoma ; Bile Ducts* ; Bile Ducts, Extrahepatic ; Bile Ducts, Intrahepatic ; Bile* ; Biliary Tract ; Cholangiocarcinoma ; Cholangiography ; Choledochal Cyst ; Diagnosis ; Dilatation ; Endoscopy ; Humans ; Mucins* ; Pancreas

A 67-year-old female patient was treated with conventional total arch replacement and insertion of a stented elephant trunk (SET) graft into the descending thoracic aorta for acute DeBakey type I aortic dissection at one time. She had been treated with right coronary artery stent insertion for acute myocardial infarct 4 days earlier, and at that time, she was diagnosed with acute DeBakey type I aortic dissection from the ascending aorta to the suprarenal artery based on trans-esophageal echocardiography and aorta computed tomography. Through a median sternotomy, we inserted the SET graft through the opened aorta to the descending aorta. We also performed anastomosis between the proximal stented graft and the distal aortic arch, and then performed total arch replacement. For acute DeBakey type I aortic dissection, we report total arch replacement with insertion of a SET graft as a combination of conventional surgery and the interventional technique.
Aorta ; Aorta, Thoracic ; Arteries ; Coronary Vessels ; Echocardiography ; Elephants ; Female ; Humans ; Myocardial Infarction ; Stents ; Sternotomy ; Transplants