期刊
JOURNAL OF VETERINARY INTERNAL MEDICINE
卷 24, 期 6, 页码 1329-1336出版社
WILEY
DOI: 10.1111/j.1939-1676.2010.0595.x
关键词
Epinephrine; Metanephrine; Norepinephrine; Normetanephrine
资金
- Virginia Veterinary Medical Association
Background: Urinary catecholamines and metanephrines have been proposed as a diagnostic tool for identifying canine pheochromocytomas, but the effects of critical illness on urine concentrations of catecholamines and metanephrines currently are unknown. Objectives: To examine the effects of illness on urine concentrations of catecholamines and metanephrines in dogs. Animals: Twenty-five critically ill dogs and 25 healthy age-and sex-matched control dogs. Methods: Prospective observational study. Urine was collected from healthy and critically ill dogs, and urine concentrations of epinephrine, norepinephrine, metanephrine, and normetanephrine were measured by high-performance liquid chromatography with electrochemical detection. Urinary catecholamine and metanephrine : creatinine ratios were calculated and compared between groups. Results: Urinary epinephrine, norepinephrine, metanephrine, and normetanephrine : creatinine ratios were higher in critically ill dogs when compared with a healthy control population (P = .0009, P < 0.0001, P < 0.0001, and P < 0.0001, respectively). Conclusions and Clinical Importance: Illness has a significant impact on urinary catecholamines and their metabolites in dogs. Further investigation of catecholamine and metanephrine concentrations in dogs with pheochromocytomas is warranted to fully evaluate this test as a diagnostic tool; however, the findings of this study suggest that the results may be difficult to interpret in dogs with concurrent illness.
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