Purpose: To evaluate the risk factors for the development of osteonecrosis in civilian professional divers by an epidemiologic study and to determine the correlation between osteonecrosis in divers and coagulopathy by analysis of serologic markers that are related to thrombophilia and hypofibrinolysis. Materials and Methods: Forty-two divers, who collected pen shells (Atrina pinnata), and among whom 10 had osteonecrosis (group 1), were compared with 32 divers without osteonecrosis (group 2). Both groups were evaluated based on the number of years of diving experience, number of dives per year, mean number of dives per day, mean diving time and depth, and diving methods. We determined any statistically significant differences among these variables. We measured the levels of serologic markers that were related to hyperlipidemia, thrombophilia, and hypofibrinolysis from the divers and a control group of 20 physicians (group 3). The levels of the serologic markers were compared between groups 1 and 2 and between the divers and the control group, in order to determine the relationship between the serologic markers and the development of dysbaric osteonecrosis. Results: None of the variables demonstrated any statistically significant differences, except for the mean diving time, in which group 1 had a mean diving time of 124 minutes and group 2 had a mean diving time of 62.1 minutes (P<0.05). In the analysis of the serologic markers, there were no statistically significant differences between groups 1 and 2; however, in comparison with the group 3, the divers demonstrated significantly decreased activity levels of proteins C and S (Protein C: P<0.05; Protein S: P<0.05), and an increase in the levels of plasminogen activator inhibitor-1 (PAI-1) (P<0.05). Conclusion: The divers with osteonecrosis had a longer mean diving time than did those divers without osteonecrosis. In the serologic marker analysis, the divers with osteonecrosis demonstrated significantly decreased activity levels of Proteins C, S and a significant increase in the levels of PAI-1, compared with the control group.
Biomarkers* ; Diving ; Epidemiologic Studies* ; Epidemiology ; Hyperlipidemias ; Osteonecrosis* ; Plasminogen Activator Inhibitor 1 ; Plasminogen Activators ; Protein S ; Risk Factors ; Thrombophilia

No abstract available.
Porphyrias, Hepatic*

BACKGROUND: Both atrophic gastritis and intestinal metaplasia may progress to gastric dysplasia. This study aimed to analyze the factors influencing progression of atrophic gastritis and intestinal metaplasia to dysplasia. METHODS: People diagnosed with atrophic gastritis and intestinal metaplasia for the first time received a follow-up endoscopy and were investigated for the cumulative incidence rate of gastric dysplasia by age, gender, smoking habit, alcohol intake, rice consumption and family history of stomach cancer. RESULTS: The cumulative incidence rate increased with age, consuming > or =3 bowls of rice per day and family history of stomach cancer. Multivariate analysis showed that the cumulative incidence rate of gastric dysplasia increased in subjects >61 years (RR=2.54, P=0.014), in those consuming > or =3 bowls of rice per day (RR=1.46, P=0.021) and in those with a family history of stomach cancer (RR=1.31, P=0.037). CONCLUSIONS: More active management, such as intensive endoscopic follow-up examinations, lifestyle change and education regarding gastric dysplasia, are required in those older than 61 years, having a higher intake of grain or with a family history of stomach cancer.
Edible Grain ; Endoscopy ; Follow-Up Studies ; Gastritis, Atrophic ; Humans ; Incidence ; Life Style ; Metaplasia ; Multivariate Analysis ; Risk Factors ; Smoke ; Smoking ; Stomach ; Stomach Neoplasms

We developed an animal model to recreate the condition of an open fracture in communication with the maxillary sinus. We then studied wound healing of the sinus wall structures following fracture in the presence of autogenous bone and alloplastic implant. This model is designed to simulate the repair of an orbital floor fracture in humans. The New Zealand White rabbit was used as the animal model. Standardized 8mm defects were made bilaterally in the maxillary sinuses to include bone and mucosa in 36 rabbits. Two different implants and autogenous calvarial bone graft were placed in the soft-tissue pockets to obturate the defects, exposing one surface of the implant to the open sinus. Medpor porous polyethylene, silicone and calvarial bone implant were compared. Animals were killed at 1, 2 and 8 weeks after implantation. Gross examination of the specimens for the amount of mucosal closure and implant tissue fixation was performed. Histological sections were evaluated for bone and soft-tissue morphology juxtaposed to the implant. Complete closure of the mucosal defect was demonstrated with each type of implant. Medpor implants showed both vascular and soft-tissue ingrowth into pores by week 1. Bone ingrowth was seen by week 2. Closure of the Medpor obturated defects occurred more rapidly than in the silicone group. The Medpor implants and calvarial bone demonstrated bone and soft-tissue fixation, callus formation and maturation, while mature overlying mucosa was reconstituted over the defects. Silicone implants demonstrated a fibrous tissue reaction within 1 week of implantation and they never became fixed to bone or soft tissue. Maxillary sinus wall regeneration occurred in all defects. This study supports clinical observations of maxillary sinus wall regeneration in humans.
Animals ; Bony Callus ; Fractures, Open ; Humans ; Maxillary Sinus ; Models, Animal ; Mucous Membrane ; New Zealand ; Orbit ; Polyethylene ; Rabbits ; Regeneration ; Silicones ; Tissue Fixation ; Transplants ; Wound Healing

PURPOSE: This study was to evaluate the accuracy of the implant torque controller used in dental clinics and to investigate whether it was applied appropriately. MATERIALS AND METHODS: Fifty dentists who work in dental clinics were enrolled in this study. Dental (implant) practice career, experience frequency of implant screw loosening and fracture, education of implant torque controller application and infection control methods were included in the survey. 25 Ncm and 30 Ncm of the tightening torque applied to the implant screw were measured by 50 clinicians. After measuring the torque value by using the torque controller, the torque mean according to where education about the implant torque controller was received was analyzed with independent t-test at the significance level of 0.05. RESULTS: The torque controller used in private dental clinics showed 4.78% error ratio. When 50 dentists applied 25 Ncm to the implant screw was 29.0 +/- 8.4 Ncm, and that in 30 Ncm was 34.3 +/- 9.1 Ncm. Statistical significance was found between the group that was educated about implant torque application and the group that was not educated. CONCLUSION: During the prosthodontic treatment with implant, there was difference between actual applied torsion force and the amount torque controller indicated. Clinicians have to not only be well-informed about the accurate usage method of the torque controller, but also keep and manage the torque controller so as to maintain continuous and accurate torque values. Through this, it is considered to achieve clinical results to minimize problems of screw loosening or fracture.
Dental Clinics ; Dentists ; Humans ; Infection Control ; Prosthodontics ; Torque

No abstract available.
Hypokalemia*

No abstract available.
Arthritis, Juvenile*

No abstract available.
Antibodies, Anticardiolipin* ; Female ; Pregnancy ; Pregnancy Outcome* ; Pregnancy*

Clinical observation was made on 11 cases of ureterosigmoidostomy during the period from 1959 to 1976. Age ranged from 27 to 65 years and 7 female and 4 male each. Underlying diseases at the time of operation were 6 cases of vesico-vaginal fistula and 5 cases of bladder tumor. Their operation time, amount of transfusion, electrolyte balance, early and late complications after operation were analyzed. It seemed to us that despite the many urologist abandon ureterosigmoidostomy and prefer ileal diversion, its usefulness is assessed in our paper and applicable to some selected patients.
Female ; Fistula ; Humans ; Male ; Urinary Bladder Neoplasms ; Water-Electrolyte Balance

Myocarditis is defined as the myocardial inflammation caused by various infectious agents (such as virus, rickettsia , bacteria, protozoa, fungus and parasites). The clinical manifestations of myocarditis ranges from the asymptomatic state due to focal inflammation to fulminant fatal congestive heart failure secondary to diffuse myocardial involvement. Clinically, in some cases, it may simulate an acute myocardial infarction. We experienced a case of acute fulminant myocarditis that presented as acute myocardial infarction initially, and then progressed into and recovered from congestive heart failure and multiorgan failure.
Asymptomatic Diseases ; Bacteria ; Estrogens, Conjugated (USP)* ; Fungi ; Heart Failure* ; Inflammation ; Myocardial Infarction ; Myocarditis* ; Rickettsia