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Sixteen animals affected in 2 outbreaks of pet food-associated renal failure (2 dogs in 2004; 10 cats and 4 dogs in 2007) were evaluated for histopathologic, toxicologic, and clinicopathologic changes. All 16 animals had clinical and laboratory evidence of uremia, including anorexia, vomiting, lethargy, polyuria, azotemia, and hyperphosphatemia. Where measured, serum hepatic enzyme concentrations were normal in animals from both outbreaks. All animals died or were euthanized because of severe uremia. Distal tubular lesions were present in all 16 animals, and unique polarizable crystals with striations were present in distal tubules or collecting ducts in all animals. The proximal tubules were largely unaffected. Crystals and histologic appearance were identical in both outbreaks. A chronic pattern of histologic change, characterized by interstitial fibrosis and inflammation, was observed in some affected animals. Melamine and cyanuric acid were present in renal tissue from both outbreaks. These results indicate that the pet food-associated renal failure outbreaks in 2004 and 2007 share identical clinical, histologic, and toxicologic findings, providing compelling evidence that they share the same causation.  相似文献   

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Chronic renal disease is a leading cause of death in dogs and cats. Recent clinical studies show that nutrition plays a key role in improving quality of life and life expectancy of these patients. Typical nutritional interventions include modifying the protein, phosphorus, and lipid concentrations. Nutritional therapy, however, does not simply mean changing the diet; consideration must also be given to ensuring adequate caloric intake and to the method of feeding. Monitoring the effects of the dietary therapy is also crucial to ensure that the patients are responding appropriately to the selected nutritional modifications. Nutritional management must be coordinated with medical management for long term successful treatment.  相似文献   

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Renal damage and disease can be caused by acute or chronic insults to the kidney. Acute renal damage often results from ischemic or toxic insults and usually affects the tubular portion of the nephron. In contrast, chronic renal disease can be caused by diseases and/or disorders that affect any portion of the nephron, including its blood supply and supporting interstitium.Early detection of acute renal disease facilitates appropriate intervention that can arrest or at least attenuate tubular cell damage and the development of established acute renal failure. Similarly,early detection of chronic renal disease, before the onset of renal azotemia and chronic renal failure, should facilitate appropriate intervention that stabilizes renal function or at least slows its progressive decline.  相似文献   

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OBJECTIVE: To determine if dogs and cats with renal failure, or other severe non-cardiac disease, and no antemortem evidence of cardiac disease on basic clinical evaluation, have elevated levels of cardiac troponin I (cTnI). DESIGN: Cross-sectional study using 56 dogs and 14 cats with primary non-cardiac disease (39 dogs with azotaemic renal failure, 14 cats with azotaemic renal failure, 17 dogs with non-cardiac systemic disease); 7/25 dogs and 6/14 cats had murmurs detected on physical examination. Serum or heparinised plasma was collected and analysed for cTnI. RESULTS: Cardiac troponin I concentrations were elevated above reference intervals in 70% of dogs and 70% of cats with azotaemic renal failure and in 70% of dogs with a variety of systemic non-cardiac diseases. Cardiac troponin I concentrations did not correlate with the degree of azotaemia, presence of murmurs, hypertension or type of non-cardiac illness. CONCLUSIONS: Cardiac troponin I concentration is often elevated in dogs and cats with azotaemic renal failure and in dogs with other systemic non-cardiac illness, suggesting that these conditions often result in clinically inapparent myocardial injury or possibly altered elimination of cTnI.  相似文献   

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Pleural dialysis, as an alternative to peritoneal dialysis and hemodialysis, was shown in a limited number of cases to be an inexpensive and easily applied technique for use in dogs. It is a viable modality for the management of acute renal failure in dogs that have suffered an acute but reversible renal insult, in which volume replacement and dopamine/furosemide infusion fails to reverse the oliguric state.  相似文献   

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Renal transplantation was performed as treatment of end-stage renal failure in 23 cats. Twenty-two cats had chronic renal disease and 1 cat had acute renal disease associated with ethylene glycol-induced toxicosis. Sixteen cats were discharged from the hospital. Nine survived a mean of 8.4 +/- 6.5 months, and 7 cats continue to survive at the time of this report (mean 12.6 months). Seven cats died within 2 weeks of surgery. All renal allografts were obtained from unrelated blood-crossmatch-compatible donors. No deaths were attributable to acute renal allograft rejection, demonstrating the successful maintenance of renal allografts by use of cyclosporine and prednisolone immunosuppression in cats.  相似文献   

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为了研究犬异体脂肪源间充质干细胞(Mesenchymal Stem Cell,MSC)移植对钩端螺旋体引起的急性肾衰竭(Acute renal failure,ARF)的治疗效果。采用Ⅰ型胶原酶消化法分离犬的脂肪MSC;通过静脉注射MSC对1例钩端螺旋体引起的急性肾衰竭犬进行治疗。结果显示,犬脂肪MSC呈长梭形、三角形或多菱形等形态、贴壁生长;干细胞移植治疗后一周,病犬精神恢复良好,饮食正常,检测血液肌酐和血磷含量下降至正常范围内,尿素氮含量明显下降且接近正常范围。表明犬脂肪MSC移植能有效治疗钩端螺旋体诱发的急性肾衰竭。  相似文献   

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Objective: To describe the indications, clinical features, outcomes and complications associated with use of continuous renal replacement therapy (CRRT) in 17 client-owned dogs and 16 client-owned cats with acute or acute-on-chronic renal failure refractory to aggressive medical management.
Series summary: Twenty-nine percent of dogs and 44% of cats had evidence of pre-existing chronic kidney disease (CKD). Median duration of CRRT was 16.3 hours (range 0.3–83.0 hours) in dogs and 11.5 hours (range 1.0–35.5 hours) in cats. Median canine blood urea nitrogen (BUN) improved from 41.0 mmol/L (115.0 mg/dL) to 11.8 mmol/L (33.0 mg/dL) and creatinine from 636.5 mmol/L (7.2 mg/dL) to 274 mmol/L (3.1 mg/dL). Median feline BUN improved from 46.4 mmol/L (130 mg/dL) to 13.9 mmol/L (39.0 mg/dL) and creatinine from 1069.6 mmol/L (12.1 mg/dL) to 291.7 mmol/L (3.3 mg/dL). Metabolic acidosis resolved in 80% of affected dogs and 71% of affected cats. Hyperkalemia resolved in 100% of affected dogs and 88% of affected cats. Complications noted with CRRT included iatrogenic hypokalemia, iatrogenic metabolic alkalosis, clinical hypocalcemia, total hypercalcemia, filter clotting, anemia, hypothermia, and neurologic complications. Forty-one percent of dogs and 44% of cats survived to discharge. No dogs and only 1 cat developed newly diagnosed CKD.
New or unique information provided: CRRT can be a viable option for the management of acute or acute-on-chronic renal failure in dogs and cats that are refractory to aggressive medical management. The frequency of complications associated with CRRT in this study warrants further experience with this modality before its widespread use can be recommended.  相似文献   

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Hemangiosarcoma (HSA, including angiosarcoma and malignant hemangioendothelioma) is a highly malignant tumor derived from the endothelial cell line and is characterized by early and aggressive metastasis. HAS is a common tumor type in dogs, but is rare in other species. Treatment options include surgery, chemotherapy, and possibly radiation, but survival times are invariably short (usually < 1 year), except for patients with superficial dermal HSAs. Further options to treat this tumor type are currently being investigated.  相似文献   

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Laparoscopic techniques have been developed in veterinary medicine for noninvasive evaluation of several organs, including liver, extrahepatic biliary system, pancreas, kidneys, spleen, bowel, and genitourinary tract. Biopsy procedures of these organs with minimal risk can be performed in most patients. This article reviews the equipment and technique necessary to perform laparoscopy in dogs and cats.  相似文献   

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Objective: To describe the use of peritoneal dialysis (PD) in the management of 5 dogs with acute renal failure (ARF) caused by leptospirosis. Case Series Summary: All dogs were treated for leptospirosis with intravenous (IV) fluids and ampicillin prior to PD. Median age of dogs was 5 years (range 2–6 years). All dogs had positive titers for Leptospira bratislava. Median duration of PD was 4 days (range 3–16 days). PD resulted in a decrease in azotemia in all dogs. Median serum blood urea nitrogen at the start of PD was 192 mg/dL (range 140–235 mg/dL) and at the end of PD was 63 mg/dL (range 48–139 mg/dL). Median serum creatinine at the start of PD and the end was 12.8 mg/dL (range 7.7–16.9 mg/dL) and 3.4 mg/dL (range 1.4–11.1 mg/dL), respectively. Complications identified during PD included hypokalemia (n=3, 60%), hypoalbuminemia (n=2, 40%), hypomagnesemia (n=1, 20%), pelvic limb edema (n=2, 40%), central nervous system signs (n=2, 40%), dialysate retention (n=1, 20%), and leakage from the catheter site (n=1, 20%). Peritonitis was not identified in any of the dogs. Four dogs (80%) survived to discharge from the hospital. PD was effective for management of uremia in dogs with ARF caused by leptospirosis.  相似文献   

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Giardia intestinalis is a pathogenic protozoan which infects humans and a wide range of animal hosts, including cats and dogs(1). However, the status of animals in New Zealand with respect to Giardia infection has not received much attention, so we undertook a preliminary study of cats and dogs in Palmerston North and Hamilton to determine the prevalence of infection, as indicated by the presence of cysts in faeces.  相似文献   

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