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排序方式: 共有169条查询结果,搜索用时 15 毫秒
81.
Amsellem PM Seim HB MacPhail CM Bright RM Twedt DC Wrigley RH Monnet E 《Journal of the American Veterinary Medical Association》2006,229(9):1451-1457
OBJECTIVE: To determine factors associated with long-term survival after biliary surgery in dogs. DESIGN: Retrospective case series. ANIMALS: 34 dogs that underwent biliary surgery. PROCEDURES: Data extracted from medical records included sex, breed, body weight, age at surgery, history and clinical examination findings, preoperative and postoperative CBC, serum biochemical panel and coagulation profiles results, abdominal ultrasonographic findings, results of bacteriologic culture and histologic examination, surgical findings, postoperative complications, and survival time. Follow-up information was obtained from medical records or phone conversations with owners and referring veterinarians. RESULTS: Primary biliary findings included gallbladder mucocele (n = 20 dogs), inflammatory diseases (4), trauma (3), and neoplasia (1). Secondary biliary diseases included pancreatitis (n = 4), pancreatic neoplasia (1), and duodenal perforation (1). One- and 2-year survival rates were both 66%. Increasing age; gamma-glutamyltransferase activity; preanesthetic heart rate; BUN, phosphorus, and bilirubin concentrations; and the use of biliary diversion procedures were risk factors for death, although pancreatitis was not. However, poor long-term survival was associated with pancreatitis. CONCLUSIONS AND CLINICAL RELEVANCE: Long-term prognosis was guarded after biliary surgery in dogs. However, dogs that survived the early postoperative period had good long-term prognosis. Dogs with pancreatitis had poor prognosis. Overall, the prognosis was worse for dogs that underwent a biliary diversion, compared with dogs that did not. 相似文献
82.
Comparison of effects of cimetidine and omeprazole on mechanically created gastric ulceration and on aspirin-induced gastritis in dogs. 总被引:1,自引:0,他引:1
C C Jenkins R C DeNovo C S Patton R M Bright B W Rohrbach 《American journal of veterinary research》1991,52(5):658-661
A double-blind study was conducted to compare gastric ulcer healing time in nontreated dogs with that in dogs treated with either cimetidine or omeprazole. Single ulcers were created in the gastric antrum by use of a suction biopsy capsule. Each dog was given 25 mg of aspirin/kg of body weight orally for 20 days after ulcer induction. Five control dogs were given aspirin only (no anti-ulcer medication) during the 20-day study. Six dogs were given cimetidine at dosage of 10 mg/kg orally every 8 hours, and 6 dogs were given omeprazole orally at dosage of 2 mumol/kg (0.7 mg/kg) once daily. All dogs were examined endoscopically on days 5, 10, 15, and 20 and were given a score for the size of the mechanically created ulcer and a score for the degree of aspirin-induced gastritis. All dogs were euthanatized on day 21, and gastric lesions were examined histologically. Significant differences were not evident in ulcer healing scores or degree of aspirin-induced gastritis among treated and nontreated dogs on days 5, 10, 15, and 20. However, aspirin-induced gastritis was less severe in dogs of the omeprazole group than in dogs of the cimetidine or control group on each day observations were made. The effect of omeprazole given once daily was comparable with that of cimetidine given every 8 hours in lessening aspirin-induced gastritis. 相似文献
83.
Effective conservation management for species that function as metapopulations requires an understanding of population dynamics
at the landscape scale. The water vole, Arvicola amphibius, is one such species. Water voles have recently undergone a significant decline in the UK, as a result of habitat loss and
predation from the introduced American mink, Neovison vison. Large reed bed and grazing marsh sites can provide refuge habitats for water voles from mink predation, in which case populations
within these sites could sustain metapopulations in the surrounding landscape where conditions are less favourable. We carried
out a study using a stochastic patch occupancy model to determine the long term viability of water vole metapopulations in
the wider landscape around a series of extensive reed bed and grazing marsh sites designated as National Key Sites for water
voles. The results of our model simulations show that a large protected core site, or mainland, is essential in maintaining
the long term viability of these systems. Our results also show how these metapopulations could be enhanced by increasing
patch numbers through habitat creation and/or restoration and suggest what the minimum effective size of created or restored
patches should be. The study shows how population modelling can provide insight into some effective practical ways of enhancing
the viability of water vole metapopulations at the landscape scale. Furthermore it demonstrates that extensive wetlands are
an appropriate focus for water vole conservation measures. 相似文献
84.
G. B. Daniel L. Golden J. M. Bright D. Fefee K. Young D. Schmidt R. C. Harvey 《Veterinary anaesthesia and analgesia》1997,24(2):12-16
To assess the effects of medetomidine, an α2-adrenoceptor agonist, on cardiac function, radionuclide ventriculograms (RNV) were performed in 7 normal anesthetised cats before and after im administration of the drug. Ejection fraction (EF), peak ventricular ejection rate (PVER), peak ventricular filling rate (PVFR), time to peak ejection (TPE) and time to peak filling (TPF) were determined. Medetomidine caused significant reductions in EF (baseline 55.0 ± 10.8%, post medetomidine 43.3 ± 10.7%), PVER (baseline 4.38 ± 0.83 EDV/s, post medetomidine 3.28 ± 0.73 EDV/s) and PVFR (baseline 4.46 ± 1.42 EDV/s, post medetomidine 3.05 ± 1.27 EDV/s). There was also a significant decrease in heart rate following medetomidine administration (baseline 115 ± 27.2 bpm, post medetomidine 100 ± 21.2 bpm). The TPE and TPF did not change significantly following medetomidine. The observed decrease in cardiac function may have been caused by a drug-induced increase in systemic vascular resistance, and the bradycardia due to central nervous system depression. 相似文献
85.
An adult male big brown bat (Eptesicus fuscus) and an adult female hoary bat (Lasiurus cinereus) were presented with open transverse middiaphyseal left radial fractures. Initial repair was attempted by intramedullary pinning. When the fractures did not heal, intramedullary pins were removed and type I external skeletal fixators were placed. The fractures healed, and the big brown bat regained normal flight but the hoary bat did not. 相似文献
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87.
Robert A. Robertson Erika L. Carlsen Alan Bright 《Aquaculture Economics & Management (Blackwell Science)》2013,17(1-2):117-126
Abstract Social science can make important contributions to understanding the prospects for offshore marine aquaculture development because many of the potential barriers that may restrict its development are social and institutional rather than biological or technical. This study collects baseline data on attitudes towards offshore marine aquaculture held by a key stakeholder group. It also investigates the influence of information on attitudes towards marine aquaculture. Data reported in this study were collected from visitors to a seafood festival in coastal New Hampshire. The formal objectives of this research were to determine what effect, if any, two‐sided information on the potential advantages and disadvantages of marine aquaculture has on attitudes towards marine aquaculture and how prior familiarity with aquaculture moderates the effect of information. The findings from this study indicate that two‐sided information has a negative effect on attitudes, especially among individuals who are unsure of their level of familiarity with the issue. 相似文献
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