No abstract available.
Turner Syndrome*

No abstract available.
Child ; Male ; Female ; Humans

BACKGROUND: Although experimental and clinical evidences suggest that endothelin-1(ET-1) may play a pathophysiological role in ischemic heart disease, it is still controversial whether ET-1 produced during myocardial ischemia and reperfusion affects the extent of necrotic myocardium. This study was performed to investigate the role of ET-1 and the effect of ET antagonists in infarct size determination. METHODS: Male Wistar rats(260-400g) were anesthetized with pentobarbital(i.p. 50mg/kg) and ventilation was assisted via tracheostomy tube. The heart was exposed by midline incision and the left anterior descending coronary artery was ligated with 6-0 silk suture. The ligature was released after 1 hour and reperfusion was performed for 2 hours. In the first set of experiment, FRI139317(ET-A antagonist) was given as bolus i.v.(3mg/kg) 10 minutes before reperfusion, followed by continuous infusion(total 24mg/kg) throughout reperfusion. In the other protocol, bosentan(ET-A/ET-B antagonist ; 10mg/kg) was given 10 minutes before coronary occlusion as i.v. bolus. At the end of reperfusion, the heart was excised and stained with Evans blue dye(1% w/v) and triphenyltetrazolium chloride(TTC;1%) to distinguish infarct region(not stained by TTC and Evans blue), ischemic but viable myocardium(stained brick-red by TTC but not stained by Evans blue) and nonischemic myocardium(dyed by Evans blue). These three regions of myocardium were separated and weighed for analysis. Infarct size(in percent) was expressed as the ratio of infarct region to ischemic myocardium(i.e. infarct region plus ischemic but viable myocardium). RESULTS: In the first protocol, infarct region was 57.0 +/-3.8% of the ischemic myocardium in control(n=9) and 58.9+/-4.9% in FR139317 group(n=7) ; The difference was not significant statistically. Likewise, ET-A/ET-B antagonist bosentan given before coronary occlusion did not reduce infarct size significantly ; the ratio was 74.2+/-3.2% in control(n=7) and 69.5+/-2.0% in bosentan group(n=7). CONCLUSIONS: ET-A antagonist FR139317, given throughout reperfusion, did not reduce myocardial infarct size in rat. Bosentan(ET-A/ET-B antagonist) given just before coronary occlusion as i.v. bolus also did not reduce myocardial infarct size in rat.
Animals ; Coronary Occlusion ; Coronary Vessels* ; Endothelin-1 ; Endothelins* ; Evans Blue ; Heart ; Humans ; Ligation ; Male ; Myocardial Infarction* ; Myocardial Ischemia ; Myocardium ; Rats* ; Reperfusion* ; Silk ; Sutures ; Tracheostomy ; Ventilation

BACKGROUND: The purpose of this study was to identify predictive factors for preventive behaviors of falls in elderly inpatients. METHODS: Data on 200 elderly inpatients at one university hospital were collected. Descriptive analysis, independent t-test, analysis of variance, and stepwise multiple regression analysis were done to analyze the data. RESULTS: The high risk group, scoring higher than 5.0 in the degree of self-awareness of fall risk, scored low in knowledge about falls while subjects with activity limitations and not using hearing aids scored significantly high in the same area. Subjects with no training regarding falls and the high risk group scored low in fall efficacy while subjects with activity limitations and using hearing aids scored significantly high in the same area. The degree of self-awareness of fall risk, knowledge about falls, and fall efficacy were significant factors affecting fall prevention activities. CONCLUSIONS: These findings suggest that self-awareness of the risk of falls, knowledge about falls, and fall efficacy are significant factors in preventing falls. These factors should be considered when developing nursing assessment tools and intervention programs for elderly inpatients.
Accidental Falls ; Aged ; Hearing Aids ; Humans ; Inpatients ; Nursing Assessment

No abstract available.
Craniocerebral Trauma* ; Head*

No abstract available.
Bone Transplantation ; Maxilla ; Osteotomy

No abstract available.

Postoperative colonoscopy is an effective tool for management of colonic adenomas. Authors analyzed the pattern of colonic adenomas detected during follow-up colonoscopy after colorectal cancer surgery and evaluated the characteristics of adenornas, risk groups, and effective fo1low-up schedule. Study group were 222 patients and colonoscopy was performed 389 times. Patterns of adenornas were analyzed by variables as age, sex, preoperative serum CEA level, location of primary colorectal cancer, Borrmann type, Duke's stage, histologic differentiation, DNA ploidy, recurrence and histology. Metachronous adenomas were detected in 79 patients(35.6%) and both metachronous and syachronous adenomas were observed in 29 cases(13.1%). High risk variables for adenomas were male, old age and presence of synchronous adenoma. There were 2 patients with maligant change of adenomas. Yearly follow-up by complete colonoscopy over 3 years or more is recommended and follow-up interval should be shortened in the high risk groups.
Adenoma* ; Appointments and Schedules ; Colon ; Colonic Neoplasms ; Colonoscopy ; Colorectal Neoplasms* ; DNA ; Follow-Up Studies ; Humans ; Male ; Ploidies ; Recurrence

No abstract available.
Emergencies* ; Emergency Medical Technicians* ; Humans ; Military Personnel* ; Republic of Korea*

No abstract available.
Stomach Neoplasms*