No abstract available.
Scoliosis*

Doxorubicin(Adriamycin(R)) is effective in the treatment of various solid tumors and hematologic malignancies. Because of dose-related cardiotoxicity, however, early inappropriate discontinuation of doxorubicin therapy may minimize its therapeutic efficacy in many patients. Consequently, clinically sensitive tests are needed to select patients in whom treatment must be stopped early. Various techniques have been used for early detection of subclinical doxorubicin-induced cardiotoxicity, including electrocardiography, systolic time intervals, echocardiography, radionuclide angiography and endomyocardial biopsies. Most studies of doxorubicin cardiotoxicity have dealt with systolic function of the left ventricle and effects on diastolic function have not been reported. In order to determine whether impaired diastolic function may be an early sign of doxorubicin cardiotoxicity, a retrospective study was performed in 12 patients who had undergone serial radioangiography and were found to have left ventricular ejection fractions(LVEF)> or =55% prior to doxorubicin treatment and during follow-up. Average rapid filling velocity(RFV) and slow filling velocity(SFV) were both significantly reduced after doxorubicin treatment. RFV fell from 5.17+/-1.52 units/second to 4.18+/-0.96(P<0.01) and SFV fell from 2.20+/-1.32 units/second to 1.42+/-0.62(P<0.05). There were no significant changes in filling volume ratio, total diastolic time and diastolic time ratio. Since a change in left ventricular diastolic function can occur before ejection fraction falls to subnormal levels, diastolic function as well as systolic function should be examined in the early detection of doxorubicin cardiotoxicity.
Biopsy ; Doxorubicin* ; Echocardiography ; Electrocardiography ; Follow-Up Studies ; Heart Ventricles ; Hematologic Neoplasms ; Humans ; Radionuclide Angiography ; Retrospective Studies ; Systole

No abstract available.
Morphine* ; Respiration, Artificial* ; Weaning*

BACKGROUND: A randomized, multicenter, open-label, parallel group study was performed to compare the effects of remifentanil and morphine as analgesic drugs on the duration of weaning time from mechanical ventilation (MV). METHODS: A total of 96 patients with MV in 6 medical and surgical intensive care units were randomly assigned to either, remifentanil (0.1-0.2 mcg/kg/min, n = 49) or morphine (0.8-35 mg/hr, n = 47) from the weaning start. The weaning time was defined as the total ventilation time minus the sum of controlled mode duration. RESULTS: Compared with the morphine group, the remifentanil-based analgesic group showed a tendency of shorter weaning time (mean 143.9 hr, 89.7 hr, respectively: p = 0.069). Secondary outcomes such as total ventilation time, successful weaning rate at the 7th of MV day was similar in both groups. There was also no difference in the mortality rate at the 7th and 28th hospital day. Kaplan-Meyer curve for weaning was not different between the two groups. CONCLUSIONS: Remifentanil usage during the weaning phase tended to decrease weaning time compared with morphine usage.
Analgesics ; Humans ; Critical Care ; Morphine* ; Mortality ; Respiration, Artificial* ; Ventilation ; Ventilator Weaning ; Weaning*

Recently the esthetic demands of clinicians and patients made the surgeon try to regenerate bone defects and gingival tissue after extraction. For that, many surgical methods were used and socket preservation have been evaluated simple, effective and good prognosis in the implant placement. Bone grafting was one of the methods for socket preservation. This study was to evaluate the histologic view of the effects on healing of the extraction sockets when deproteinized bovine bone mineral and tetracycline coated deproteinized bovine bone mineral was implanted 1. In control group, at 4 weeks after implantation, the extraction sockets were filled with connective tissue. And after 8 weeks, osteoblasts were observed in newly formed trabecular among the fibrous connective tissue in the extraction sockets. 2. In experimental 1 group, there was connective tissue and new bone trabecular around newly formed woven bone at 4 weeks. And many osteoblasts were observed in various direction at 8 weeks. 3. In experimental 2 group, there was a lot of new bone made around the bone powder after 4 weeks, and the thicker bone trabecular, lamellar bone and irregular osteoblasts arrangement were observed at 8 weeks. From the results of this study, tetracycline coated BBP would be better than the other groups in the lamellar bone formation and be faster in the bone formation rate.
Animals ; Bone Transplantation ; Connective Tissue ; Dogs* ; Humans ; Osteoblasts ; Osteogenesis ; Prognosis ; Tetracycline

p53 is a tumor suppressor gene product identified in a wide range of tumor including colorectal carcinoma. Genetic alterations in the p53 tumor suppressor gene are common in human colorectal carcinoma. bcl-2 is a protooncogene that inhibits apoptosis. The products of mutant p53 gene and bcl-2 have been associated with prognosis in several malignancies including colorectal carcinomas. This study was undertaken to evaluate values of p53 and bcl-2 oncoproteins as prognostic factors relative to clinicopathological factors and correlation of their expression. Analyses were made on achieval pathologic tissues of 80 patients with colorectal carcinomas including 34 patients able to follow-up over 5 years. The oncoproteins were localized using commercially available monoclonal antibodies:DO-7 for p53, clone124 for bcl-2. Expression of bcl-2 was cytoplasmic, whereas nuclear p53 expression was localized in carcinoma cells. The patients were 17 to 83 years of age. The expression of p53 and bcl-2 was determined respectively in 30 (37.5%) and 21 (26.3%)cases. The expression of p53 nuclear expression was not correlated with tumor location, size, histologic grade, Duke's classification, regional lymph node metastasis and tumor recurrence. The cytoplasmic expression of bcl-2 was not correlated with tumor location, size, histologic grade, Duke's classification, regional lymph node metastasis and recurrence. Univariate analysis showed that patients with p53 nuclear expression were not associated with poorer overall survival than patients with p53 negative, and also showed in patients with bcl-2 expression. The expression of p53 did not affect to that of bcl-2. We concluded that the p53 nuclear and bcl-2 cytoplasmic expression were not independent prognostic factors in colorectal carcinomas. Evidence of reciprocity of bcl-2 and p53 expression was not found.
Apoptosis ; Classification ; Colorectal Neoplasms* ; Cytoplasm ; Follow-Up Studies ; Genes, p53 ; Genes, Tumor Suppressor ; Humans ; Lymph Nodes ; Neoplasm Metastasis ; Oncogene Proteins ; Prognosis ; Recurrence

No abstract available.
Male ; Penile Erection*

The antihypertensive effect and side reactions of perdipine were evaluated in 30 patients with essential hypertension. The results were as follows; 1) Before medication and after 2, 4, 5 and 8 weeks of medication, the over all average systolic and diastolic blood pressure were 170+/-13/104+/-7, 152+/-13/93+/-6, 146+/-11/91+/-6, 143+/-9/90+/-7, and 141+/-10/89+/-7mmHg, respectively. In 89% of all cases, marked or moderate degree of antihypertensive effect was observed. 2) There were no significant changes in heart rates before and after treatment. 3) In 83% of all cases, improvement of symptoms were observed. 4) The side reactions of oral perdipine were mild constipation, anorexia, facial flushing, dizziness, and headache, respectively one case. but there were no side reactions which required discontinuing the treatment, except 1 case which discontinued the medication because of severe bradycardia and dizziness.
Anorexia ; Blood Pressure ; Bradycardia ; Constipation ; Dizziness ; Flushing ; Headache ; Heart Rate ; Humans ; Hypertension ; Nicardipine*

Congenital intratympanic membrane cholesteatomas (ITMCs) are very rare. We present 3 cases of congenital ITMCs. In the first case, there was a small keratin pearl in the center of the tympanic membrane. In the other cases, cholesteatomas were found in the periphery. In all cases, cholesteatomas were confined to the space between the outer epithelial layer and the middle fibrous layer. The pathogenesis of this rare disease and the natural history are not well known. In some reported cases, it grows and invades into the middle ear. However, in the present study, the lateral growing of the ITMC was observed in one of the three cases. Furthermore, it naturally grew outward and finally moved to the external auditory canal. Careful periodic observation should be considered for alternative treatments. We present three different cases of ITMC with a review of the literature.
Cholesteatoma ; Ear Canal ; Ear, Middle ; Keratins ; Membranes ; Natural History ; Rare Diseases ; Tympanic Membrane

BACKGROUND: A randomized, multicenter, open-label, parallel group study was performed to compare the effects of remifentanil and morphine as analgesic drugs on the duration of weaning time from mechanical ventilation (MV). METHODS: A total of 96 patients with MV in 6 medical and surgical intensive care units were randomly assigned to either, remifentanil (0.1-0.2 mcg/kg/min, n = 49) or morphine (0.8-35 mg/hr, n = 47) from the weaning start. The weaning time was defined as the total ventilation time minus the sum of controlled mode duration. RESULTS: Compared with the morphine group, the remifentanil-based analgesic group showed a tendency of shorter weaning time (mean 143.9 hr, 89.7 hr, respectively: p = 0.069). Secondary outcomes such as total ventilation time, successful weaning rate at the 7th of MV day was similar in both groups. There was also no difference in the mortality rate at the 7th and 28th hospital day. Kaplan-Meyer curve for weaning was not different between the two groups. CONCLUSIONS: Remifentanil usage during the weaning phase tended to decrease weaning time compared with morphine usage.
Analgesics ; Humans ; Critical Care ; Morphine ; Mortality ; Respiration, Artificial ; Ventilation ; Ventilator Weaning ; Weaning