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排序方式: 共有981条查询结果,搜索用时 15 毫秒
71.
LR Pisharodi 《Canadian Metallurgical Quarterly》1997,41(5):1407-1411
OBJECTIVE: To describe the diagnostic cytologic features of low grade papillary adenocarcinomas of minor salivary gland origin (LPA) along with its pertinent differential diagnostic entities. STUDY DESIGN: The study was based on a histologically confirmed case of LPA that recurred after multiple excisions. Fine needle aspiration (FNA) was performed during the most recent recurrence. RESULTS: Low-power examination showed geographic sheets and papillary groups of epithelial cells. Individual cells were medium sized, with scant cytoplasm, finely clumped chromatin and occasional prominent nucleoli. Pleomorphism was conspicuously absent. Differential diagnosis included cellular mixed tumor, basal cell adenoma, basal cell adenocarcinoma, low grade mucoepidermoid carcinoma and metastatic papillary carcinoma. CONCLUSION: LPA can be accurately diagnosed by FNA biopsy. However, the cytopathologist must entertain and exclude various differential diagnostic entities. 相似文献
72.
SD Detera-Wadleigh JA Badner T Yoshikawa AR Sanders LR Goldin G Turner DY Rollins T Moses JJ Guroff D Kazuba ME Maxwell HJ Edenberg T Foroud D Lahiri JI Nurnberger OC Stine F McMahon DA Meyers D MacKinnon S Simpson M McInnis JR DePaulo J Rice A Goate ES Gershon 《Canadian Metallurgical Quarterly》1997,74(3):254-262
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RE Myers SW Vernon AV Carpenter AM Balshem PG Lewis TA Wolf J Hilbert LR DeFonso EA Ross 《Canadian Metallurgical Quarterly》1997,21(4):380-389
Studies done in the mid-1970s documented increased risk for respiratory cancer and leukemia among employees in a chemical company manufacturing plant where chloromethyl ethers were used in production from 1948 to 1971. In the late 1980s, the company informed current and former employees about the results of follow-up studies which showed a moderation of risk of respiratory cancer and leukemia. New data showing elevated rates of mortality from colorectal, prostate, bladder, and pancreatic cancer in the population were also reported. Via mailed correspondence, the company made a no-cost program of colorectal and prostate cancer screening available to employees upon request; and information about bladder and pancreatic cancer was made available. Thirteen percent of employees in the population indicated interest in colorectal and prostate cancer screening (response). Thirty-one percent of these responders were screened (adherence). Multivariate analyses showed that education and length of employment in the plant were positively associated with response. Being white was positively associated with response for younger workers; while among older workers being male was positively associated with response. In terms of adherence, we found that older, more highly educated workers were more likely to have a screening examination. Findings indicate that employee participation in workplace-sponsored colorectal and prostate cancer screening can vary according to worker sociodemographic factors and length of employment in areas of potential exposure. 相似文献
75.
Avoidance of stomas and delayed anastomosis for bowel necrosis: the ''clip and drop-back'' technique
WG Vaughan JL Grosfeld K West LR Scherer E Villamizar FJ Rescorla 《Canadian Metallurgical Quarterly》1996,31(4):542-545
Necrotizing enterocolitis (NEC) and midgut volvulus (MGV) often are associated with extensive bowel necrosis. These cases may require extensive enterectomy and the formation of high or multiple stomas, and frequently are complicated by short bowel syndrome, excessive fluid losses, fistulas, stenosis, and skin breakdown. This report describes a "clip and drop-back" technique, followed by delayed anastomosis performed 48 to 72 hours later. The technique was successful in five severely ill infants (3 NEC, 2 MGV) with extensive necrosis, bowel perforation(s), and peritonitis, who required either a high stoma near the ligament of Treitz or multiple resections and enterostomies. This method removes obvious necrotic perforated bowel, controls contamination, avoids stomas (and their inherent complications in this age group), and preserves bowel length. All five babies survived. The technique is a useful addition to the pediatric surgeon's operative armamentarium in selective cases. 相似文献
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JT Hanlon RD Horner KE Schmader GG Fillenbaum IK Lewis WE Wall LR Landerman CF Pieper DG Blazer HJ Cohen 《Canadian Metallurgical Quarterly》1998,64(6):684-692
OBJECTIVE: To evaluate the relation between benzodiazepine use and cognitive function among community-dwelling elderly. METHODS: This prospective cohort study included 2765 self-reporting subjects from the Duke Established Populations for Epidemiologic Studies of the Elderly. The subjects were cognitively intact at baseline (1986-1987) and alive at follow-up data collection 3 years later. Cognitive function was assessed with the Short Portable Mental Status Questionnaire (unimpaired versus impaired and change in score) and on the basis of the number of errors on the individual domains of the Orientation-Memory-Concentration Test. Benzodiazepine use was determined during in-home interviews and classified by dose, half-life, and duration. Covariates included demographic characteristics, health status, and health behaviors. RESULTS: After control for covariates, current users of benzodiazepine made more errors on the memory test (beta coefficient, 0.35; 95% confidence interval [CI], 0.10 to 0.61) than nonusers. Further assessment of the negative effects on memory among current users suggested a dose response in which users taking the recommended or higher dose made more errors (beta coefficient, 0.57; 95% CI, 0.26 to 0.88) and a duration response in which long-term users made more errors (beta coefficient, 0.39; 95% CI, 0.05 to 0.73) than nonusers. Users of agents with long half-lives and users of agents with short half-lives both had increased memory impairment (beta coefficient, 0.32; 95% CI, 0.01 to 0.64 and beta coefficient, 0.38; 95% CI, 0.02 to 0.75, respectively) relative to nonusers. Previous benzodiazepine use was unrelated to memory problems, and current and previous benzodiazepine use was unrelated to level of cognitive functioning as measured with the other 4 tests. CONCLUSIONS: The results suggested that current benzodiazepine use, especially in recommended or higher doses, is associated with worse memory among community-dwelling elderly. 相似文献
79.
RB Willenheimer LR Erhardt H Nilsson B Lilja S Juul-M?ller G Sundkvist 《Canadian Metallurgical Quarterly》1998,32(1):17-22
BACKGROUND: As extracorporeal shock wave lithotripsy (ESWL) is frequently carried out on an outpatient basis, it is crucial to choose an adequate analgesic with less adverse effect. This study evaluated the use of three different intravenous agents: fentanyl, tramadol HCl and tenoxicam in ESWL. METHODS: One hundred and twenty patients undergoing lithotripsy were randomly assigned to receive either intravenous fentanyl 1 microgram/kg, tramadol HCl 1.5 mg/kg or tenoxicam 0.3 mg/kg before lithotripsy. Pain intensity was recorded using verbal rating pain scales (VRPS). Cases without adequate analgesia (VRPS > 4) or could not tolerate the pain, additional bolus of fentanyl 25 micrograms were given until adequate analgesia was achieved. Side effects were recorded as well. RESULTS: No significant differences were found among groups in demographic data, VRPS, number of total shock waves, cases with supplementary fentanyl, mean dose of supplementary fentanyl or the incidence of dizziness. However, the incidence of nausea or vomiting was significantly higher in fentanyl and tramadol groups comparing with tenoxicam group (15.0% and 25.0% vs. 0.0%). Oxygen saturation in fentanyl group was also significantly lower than the other two groups (p < 0.01). In addition, VRPS had a significant correlation with voltage intensities (p < 0.05). CONCLUSIONS: Lithotripsy can be satisfactorily performed by employing fentanyl, tramadol or tenoxicam for analgesia; tenoxicam apparently offers a better analgesic quality with less side effect. Furthermore, the need for stronger analgesia during larger voltage intensity should be tailored to the needs of the individuals. 相似文献
80.
S Solorio E Badui M Yá?ez R Enciso L Rodríguez LR Quintero 《Canadian Metallurgical Quarterly》1996,27(4):491-494
A thirty three-year-old male complaining of vomiting was diagnosed as having type 3 advanced gastric cancer of upper stomach and multiple liver metastasis, and had undergone total gastrectomy. The conclusive stage was P2H2n4se stage IVb. Intraoperatively, ethanol injection was performed for the liver metastasis under ultrasonography, and CDDP 100 mg was injected into the intra-abdominal cavity. Postoperative adjuvant therapy was added using oral fluorouracil and OK-432. Then we utilized FP chemotherapy (consisting of 5-FU and cisplatin) and radiotherapy for the bone metastasis. The patient survived 4 years and 4 months with good quality of life. 相似文献