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1.
We compared the results of 327 transthoracic (TT) resections and 82 transhiatal (TH) resections for carcinoma of the oesophagus operated on between July 1982 and June 1991. Significantly more patients with carcinoma of the lower third of the oesophagus (54% versus 28%) and with increased pulmonary risks for surgery (61% versus 22%) were selected for the TH approach as compared with the TT approach. Results showed comparable intraoperative complications between the two groups. 5% of patients in the TH group required a thoracotomy for control of haemorrhage (3 patients) and repair of bronchial tear (1 patient) which occurred during the transmediastinal dissection. Postoperatively, mechanical ventilation requirement and complications involving the cardio-pulmonary systems were similar between the two groups. Anastomotic leakage occurred in 3% and 4%, respectively for the TH and TT patients (p = NS), whereas hoarseness occurred in 16% and 5%, respectively (p = 0.001). The 30-day mortality rates and hospital mortality rates were comparable between the two groups as were the overall survival rates. Our results suggested that while TH resection did not diminish the operative morbidity and mortality rates overall, it is appropriate for patients with increased pulmonary risks to be preferentially selected for this approach, and for tumours located in the upper and lower portion of the thoracic oesophagus where dissection of the tumour can be carried out mostly under vision. 相似文献
2.
BACKGROUND: Mucinous gastric carcinoma (MGC) is a rare subtype of gastric adenocarcinoma, and its clinical and pathologic features are still controversial. To clarify the significance of this subtype of carcinoma, the authors conducted a case-control study to investigate the clinicopathologic characteristics of MGC and determine whether this mucin-producing histologic type is associated with a worse prognosis than other gastric carcinomas. METHODS: Twenty-two cases of MGC and 46 patients with nonmucinous gastric carcinoma (NGC) were included. Patients were evaluated on the basis of age, gender, tumor size, location, depth of tumor invasion, histologic differentiation, lymph node involvement, organ metastasis, stage at presentation, surgical curability, adjuvant chemotherapy and radiation therapy. To determine whether the MGC itself was an independent prognostic factor, a multivariate analysis was performed with the Cox proportional hazards model. RESULTS: The MGC patients were found to have larger tumors (P < 0.001), tumors more often located in the upper stomach (P < 0.05), more serosal invasion (P < 0.05), more lymph node involvement (P < 0.05), greater frequency of advanced stage disease (P < 0.01), and lower 5-year survival rates (P < 0.05) than NGC patients. There was no significant correlation between the subtypes of differentiation of MGC and other data, including the prognosis. Multivariate analysis showed that clinically important predictive factors were serosal invasion and disease stage at diagnosis. The mucinous histologic type itself was not an independent factor for poor prognosis. CONCLUSIONS: The overall survival rate for patients with MGC was worse than that for patients with NGC. The poor prognosis was correlated with more advanced stage at diagnosis and more frequent serosal invasion, not with the mucinous histologic type. 相似文献
3.
RL Ren CK Chou N Vora K Luk L Vora L Ma C Ahn CL Staud B Li JA McDougall KW Chan XB Xiong DJ Li 《Canadian Metallurgical Quarterly》1998,14(3):245-254
The possibility that the experiences of the "hidden" child survivors of the Holocaust (those who survived outside of the concentration camps during the Nazi occupation) had a pathological effect on their offspring was examined by comparing volunteer, matched samples of adult children of "hidden" child survivors of the Holocaust with adult children of nontraumatized U.S.-born Jewish parents on personality variables measured by the Sixteen Personality Factor Questionnaire (Cattell, Eber, & Tatsuoka, 1970). The MANOVA results indicated that there were no differences in the personality characteristics of the two groups. 相似文献
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5.
M el-Baradie T Inoue T Inoue S Murayama JT Tang H Yamazaki N Fournier-Bidoz 《Canadian Metallurgical Quarterly》1997,173(3):155-162
The multiple goals theory of conflict management (Ohbuchi & Tedeschi, in press) postulated that participants in a conflict pursue to achieve resource goals (economic and personal resources) and social goals (relationship, identity, justice, and power-hostility). The hypotheses based on this theory were examined by the episode method, in which 207 university students were asked to rate their recent experiences of interpersonal conflicts in terms of participants' attributes, goals, and tactics. More than 80% of the subjects answered that they were motivated to achieve multiple goals in their attempts to resolve the conflicts. Social goals were found to be more strongly activated, and economic resource goals were least strongly activated. Regression analyses revealed that the effects of participants' attributes on tactical preference were mediated by goals. 相似文献
6.
A 4-year prospective clinical study of chrysotherapy was designed to reexamine old beliefs and traditions, and to test potentially new approaches to chrysotherapy. The standard weekly dosage of 50 mg was compared to that based on 1 mg/kg body weight; no significant differences were found. The rapidly absorbed aqueous thiomalate was compared to the slowly absorbed oil repository thioglucose; the latter produced significantly less side effects and an appreciably higher percentage of improvement. Almost half (43%) of nonresponders on standard regimen had a satisfactory clinical response at higher dosage levels without increase in toxicity. Some of these findings vary so much with traditional beliefs and practices that the authors urge caution in their interpretation. But generally speaking these problems are technical and do not detract from the conviction that chrysotherapy is valuable and comparatively safe in the management of rheumatoid arthritis and that it deserves more widespread application in clinical practice. 相似文献
7.
DR Carlyle HM Goldstein S Wallace H Medellin RA Ventemiglia 《Canadian Metallurgical Quarterly》1976,49(584):670-677
Azygography is a useful technique for the pre-operative detection of unresectability of oesophageal malignancies. Invarison of the azygos vein by oesophageal carcinoma occurs because of the anatomic proximity of the thoracic oesophagus and the azygos vein. Azygography may be performed by either intraosseous injection of a rib or by direct retrograde catheterization. Complete obstruction of the azygos vein indicates that an oesophageal carcinoma is unresectable if no other intrathoracic disease is evident. 相似文献
8.
M Mori T Shiraishi S Tanaka M Yamagata K Mafune Y Tanaka H Ueo GF Barnard K Sugimachi 《Canadian Metallurgical Quarterly》1999,79(2):211-213
The cell-wall characteristics of Gardnerella vaginalis grown in conventional and biofilm systems were studied by electron microscopy. The gram-positive nature of the cell wall was confirmed. Novel cell-wall particles which appeared to be associated with cell division were also identified, particularly in organisms of biofilm origin. 相似文献
9.
NJ Lygidakis AE Berberabe N Spentzouris G Dedemadi T Kalligas G Loukas V Sotiropoulou 《Canadian Metallurgical Quarterly》1998,45(24):2376-2381
BACKGROUND/AIMS: A prospective randomized clinical trial combining adjuvant locoregional chemoimmunotherapy for pancreatic carcinoma in 512 patients was conducted from September 1991 to September 1998 at Athens Medical Center. METHODOLOGY: All patients were randomly assigned to (A) Resective Surgery (n=274), and (B) Palliative Surgery (n=238) groups. Each group was further subdivided into: (1) surgery alone, and (2) surgery plus 1-day bolus chemotherapy (Gemcitabine 1 gm/m2, Carboplatin 200 mg/m2 and Mitoxantrone 0.2 g/kg bw suspended in 10 ml of Lipiodol and 2 ml of 58% urografin), and immunotherapy (1 ml IL-2 and 0.5 ml gamma-IFN suspended in 5 ml of Lipiodol and 1 ml of 58% urografin) followed by a 5-day course of transplenic and another 5-day course of transtumoral immunotherapy using the same agents. This was repeated at 2-month intervals during the first post-operative year and every 3 months thereafter. RESULTS: Significant reduction in patient symptomatology and improvements in post-treatment quality of life were noted in patients receiving adjuvant chemoimmunotherapy. Moreover, the mean survival rate significantly improved in patients receiving the adjuvant treatment, both for the resective (32 months) and the palliative (16 months) groups. CONCLUSIONS: The treatment regimen employed was well tolerated and did not contribute to any clinical deterioration. Adjuvant targeted locoregional chemoimmunotherapy is therefore a promising avenue in the management of patients with pancreatic carcinoma. 相似文献
10.
Oesophageal carcinoma is a disease with poor prognosis despite improved treatment and diagnostic methods. The most important prognostic features are the degree of wall invasion and the presence of lymph node metastasis. Endoscopic ultrasonography (EUS) in the region of 7.5-12 MHz has improved the accuracy of tumour staging. In the course of 1 year, 21 patients with oesophageal carcinoma were examined with 20 MHz high-resolution intraluminal ultrasonography (HRES). In 11 (52%) patients, both ultrasound catheter and fiber gastroscope could pass the tumour, in 5 (23%) only the ultrasound catheter could pass. In the remaining patients the ultrasound catheter could only partially pass without prior dilatation. One patient was classified as having a stage T2 tumour, 14 (67%) had T3 and 4 (19%) had T4. In 2 patients the tumour could not be fully classified but was at least T3 When comparing our results with findings at computed tomography (CT), the T stage coincided in 9 patients (42%), in 9 patients (42%) CT could not differentiate between T2 and T3 and in 3 investigations HRES showed a higher T stage than CT. In 3 patients (14%) ultrasonography found N1 stage where CT staged N0. In one patient, CT found lymph nodes not seen with HRES. Further studies comparing EUS, HRES and surgical findings are planned to assess our view that HRES is a useful method in preoperative staging of oesophageal carcinoma. 相似文献
11.
PG Reasbeck 《Canadian Metallurgical Quarterly》1998,43(5):314-317
OBJECTIVE: For the primary treatment of pseudophakic retinal detachment, vitrectomy could be preferred to episcleral buckle because it does not induce myopia, it clears opacities of the posterior capsule and/or of the vitreous and allows a good visualization of the fundus. This study was determined to compare the anatomic and functional results of vitrectomy and episcleral buckle. METHODS: from 1990 to 1995, 93 pseudophakic eyes were operated on for retinal detachment. 75 eyes were treated with episcleral buckle (group I) and 18 eyes were treated with vitrectomy (group II). In the latter group, 4 eyes had a giant tear, and 4 other eyes had a macular hole associated with high myopia. The anatomic and functional results were analyzed retrospectively. RESULTS: The retina was reattached with one operation in 67 eyes of group I (89%) and 16 of group II (89%). More than one month after the first operation, the retina redetached in 6 eyes of Group I (8%) and one eye of group II (6%). The causes of failure were a) new or missed retinal tears [Group I: 10 eyes (13%), group II: 3 eyes (17%)] and b) vitreoretinal proliferation (group I: 4 eyes, group II: 0). The number of subsequent reoperations for failures or recurrences was higher in group I than in group II. At the final examination, the retina was attached in 73 eyes of group I (97%) and in 18 eyes of group II (100%). The Kruskal-Wallis test did not detect any difference between the two groups concerning the pre- or postoperative visual acuities. CONCLUSION: Vitrectomy seems as effective as episcleral buckle for the treatment of pseudophakic retinal detachment and offers additional advantages. 相似文献
12.
NJ Ellish K Saboda J O'Connor PC Nasca EJ Stanek C Boyle 《Canadian Metallurgical Quarterly》1996,11(2):406-412
The New York State Early Pregnancy Detection Study was a prospective study of early pregnancy loss, between implantation and menses, in 217 women attempting to become pregnant during 1989-1992. Women collected urine samples on three consecutive mornings during the late luteal phase of their menstrual cycle, for up to 12 cycles, contributing samples for 1253 menstrual cycles. Urinary human chorionic gonadotrophin (HCG), measured using an immunoradiometric assay, was the biomarker for pregnancy. We observed a range of early pregnancy loss (EPL) rates, from a low estimate of 11.0% to a high estimate of 26.9%, depending on the definition used and the subgroup analysed. Based on a definition of 3 days of HCG concentration > or = 4.00 pmol/l, 2 days > or = 5.33 pmol/l or the last day of HCG > or = 6.67 pmol/l, we identified 115 positive cycles; 95 cycles were clinically confirmed pregnancies and 20 cycles were EPL, giving an EPL rate of 17.4% [95% confidence interval (CI) 11.0-25.6]. In addition, we observed an EPL rate of 19.5% (95% CI 11.3-30.1) for samples collected within a 15 day window around menses, and a rate of 20.3% (95% CI 11.3-32.2) for samples limited to the first three menstrual cycles. Because studies use urine collection schemes other than daily sampling, the definition of pregnancy will be crucial in defining EPL. 相似文献
13.
AD Sadovnick K Eisen SA Hashimoto R Farquhar IM Yee J Hooge L Kastrukoff JJ Oger DW Paty 《Canadian Metallurgical Quarterly》1994,51(11):1120-1124
OBJECTIVE: To conduct a prospective assessment of pregnancy on women with multiple sclerosis (MS), focusing on pregnancy outcome and relapses during gestation and up to 6 months after delivery. DESIGN: Expected numbers of relapses were based on data for (1) "self-controls": the mothers ("cases") themselves prior to becoming pregnant and (2) "matched controls": female patients with MS "matched" to the mothers for year of birth, age of MS onset, MS type, MS course, and initial MS symptom(s). SETTING: Cases and controls were identified from an ambulatory care MS clinic that serves the province of British Columbia, Canada. PATIENTS OR OTHER PARTICIPANTS: Women with a diagnosis of MS who attended the MS clinic during 1982 through 1986 and subsequently became pregnant during 1982 through 1989 inclusive were included in this study as cases. Matched controls were women with MS who attended the MS clinic during the same period but did not become pregnant. RESULTS: No significant increase in relapse rate was found for cases during the first two trimesters of gestation. The number of relapses was significantly less than expected during the third trimester compared with matched controls (chi 2 = 6.80, df = 1, P < .02), but not compared with self-controls (chi 2 = 3.39, df = 1, P > .05). The observed number of relapses for the 6 months after delivery did not differ significantly from expected (self-controls: chi 2 = 2.84, df = 2, P > .05; matched controls: chi 2 = 1.76, df = 2, P > .05). CONCLUSION: These data suggest that neither pregnancy nor the 6-month period after delivery is a risk factor for relapse in MS. They are consistent with previous observations that, in the long term, pregnancy does not influence subsequent MS disability. 相似文献
14.
Developing countries like developed ones need highly skilled medical personnel, referred to as 'specialists'. In the case of developing countries, the training of these specialists abroad is expensive to the sponsoring governments, imposes a lot of hardship on the doctors and, above all, the course-content of such training takes little or no cognizance of the environment in which these doctors would later practise. The developing countries also cannot afford the loss of years in valuable services which the training abroad entails. Attempts are now being made to train specialists wholly or partly at home, in some developing countries. The approach is still not much divorced from what obtains in Britain and North America, that is, one of being trained on the job, with the onus for self-education being placed on the prospective students. Such students in most developing countries of tropical Africa have little or no facilities for further education outside their places of work. It is proposed that purpose-designed postgraduate medical schools may provide a temporary solution to specialist training in developing countries of tropical Africa. Such schools would in addition provide highly skilled medical service as well as obviate the need and the expense for the setting up of government sponsored medical research and training institutes. 相似文献
15.
OBJECTIVE: To examine (a) changes in subjects' self-care self-efficacy over time and (b) the relationship of subjects' self-care self-efficacy with adjustment to hemodialysis. DESIGN: A longitudinal design was used to study changes in self-care self-efficacy and associations between self-care self-efficacy and measures of adjustment: health status, mood distress, symptom distress, dialysis stress, and perceived adherence to fluid restriction. SAMPLE/SETTING: Subjects were recruited from 8 settings in the Northeast where outpatient hemodialysis treatment was administered. Sixty-four subjects were recruited to the study. Twenty-eight subjects completed 3 occasions of data collection. METHODS: Data were collected on three occasions: (a) baseline-within 100 days of beginning treatment; (b) 4 months after beginning treatment; and (c) 8 months after beginning treatment. Eta-squared, a measure of practical significance, is reported for four factors of the self-care self-efficacy measure on each of the three occasions. Associations between self-care self-efficacy and measures of adjustment were examined by means of Pearson correlations. RESULTS: Eta-squared estimates showed generally positive changes occurring over time in subjects' self-care self-efficacy, health status, mood distress, symptom distress, dialysis stress, and perceived adherence to fluid restriction. Changes were more positive at 4-months than at 8-months after enrollment. Significant correlations (p < .05) occurred between self-care self-efficacy and mood states, health status, symptom distress, and perceived adherence to fluid restrictions. Correlations occurred more frequently between self-care self-efficacy and mood states than between self-care self-efficacy and other measures of adjustment. CONCLUSIONS: The study provided pilot data suggesting that hemodialysis patients' self-care self-efficacy and measures of adjustment change over time. Patients who had increased confidence in self-care strategies (self-efficacy) were associated with having more positive mood states, health status, and perceived adherence to fluid restrictions and less symptom distress. Interventions designed to increase patients' self-care self-efficacy may yield positive results. Nurses are in an excellent position to give efficacy enhancing feedback that may promote patients' adjustment. 相似文献
16.
Kobasa Suzanne C.; Maddi Salvatore R.; Kahn Stephen 《Canadian Metallurgical Quarterly》1982,42(1):168
Hypothesized that hardiness—commitment, control, and challenge—functions to decrease the effect of stressful life events to producing illness symptoms. 259 upper- and middle-level male managers (mean age 48 yrs) were administered a battery of tests (including Rotter's Internal–External Locus of Control Scale, the Schedule of Life Events, and the Seriousness of Illness Survey) covering a 5-yr period. Results support the hypothesis by showing main effects on illness for both stressful life events and hardiness and an interaction effect for these independent variables. (37 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
17.
A prospective study of rock climbing injuries 总被引:1,自引:0,他引:1
OBJECTIVES: To study the rate, causes, and nature of rock climbing injuries presenting to an accident and emergency (A&E) department. METHODS: Patients presenting with rock climbing injuries to an urban A&E department were studied prospectively for one year. RESULTS: 19 rock climbers presented during the year, at a rate of one per 2774 A&E attendances. Fourteen climbers were injured on outdoor cliffs and five on the local indoor climbing wall, where the safety mats were noted to be in poor condition. Eighteen climbers had been injured during falls, 17 hitting the ground. Twelve of these climbers sustained fractures, four of which were missed on initial attendance. The remaining climber sustained the characteristic A2 pulley finger injury, which was treated conservatively with a good result. CONCLUSIONS: The risks of rock climbing in Britain would be reduced if lead climbers arranged protection at earlier stages of climbs. Sports centres with climbing walls should regularly inspect and repair their safety equipment. It is important for staff in A&E departments to appreciate the large forces involved in any climbing fall, in order that significant injuries are not missed. Those treating injured climbers should also be aware of the specific injuries to which elite climbers are predisposed. 相似文献
18.
Although a limited number of drugs make up the mainstay of treatment of endometriosis, many alternative medications have been used in an attempt to improve efficacy. Some have been rigorously evaluated and are of proven benefit, while others show promise in preliminary trials or in animal models. Proper methods of evaluating medical therapy and outcomes are essential. This chapter provides a review of new medical therapies for the treatment of endometriosis and their evaluation. 相似文献
19.
Seventy patients with squamous carcinoma or adenocarcinoma of the lung were HLA typed at the time of their diagnosis and initial therapy. No abnormal HLA antigen frequencies were found. However, the possession of HLA-Aw19 or HLA-B5 was significantly correlated with two year disease-free survival. Twelve of 21 patients (57%) with either Aw 19 or B5 were disease-free at two years. In contrast, only six of 48 patients (13%) not having either antigen were disease-free (p less than .001). One patient was lost to follow-up. It is possible that Aw 19 and/or B5 confer resistance to progression of bronchogenic carcinoma on their possessors. 相似文献
20.
Immunohistopathological staining for p53, PCNA and Ki67 was performed in 120 specimens from previously untreated laryngeal carcinomas using the avidin-biotin method with peroxidase as a marker enzyme and diaminobenzidine as a chromogen. A 5-grade staining score system was used. Statistically significant correlations (Chi-square) were seen between T- and N-stage and histopathological grading. p53 and Ki67 scoring correlated with T- and N-stage whereas PCNA with T-stage. All staining correlated with histopathological grading. The score of staining for p53, PCNA and Ki67 correlated with each other. The patients with recurrences within 3 years had mainly carcinomas with higher staining scores. Using Chi-square analysis the p53, PCNA and Ki67 staining scores were also independent prognostic indicators. 相似文献