Renal hemodynamic and diuretic effects of low-dosage dopamine in anesthetized cats

Autor: Dean D. Schwartz, James S. Wohl, Clark Terrence Patrick, W. Shannon Flournoy, James C. Wright
Rok vydání: 2007
Předmět:
Zdroj: Journal of Veterinary Emergency and Critical Care. 17:45-52
ISSN: 1476-4431
1479-3261
Popis: Objective: To evaluate the effects of low-dosage (3 μg/kg/min) dopamine on urine output, renal blood flow, creatinine clearance, sodium excretion, heart rate, and mean arterial pressure (MAP) in healthy anesthetized cats. Design: Controlled experimental study. Setting: University experimental laboratory. Animals: Twelve random-bred 2–4-year-old cats. Interventions: Anesthesia, laparotomy for renal artery blood flow measurement, and arterial and venous catheterization. Measurements: Heart rate (HR), MAP, renal blood flow, urine output, sodium excretion, fractional sodium excretion, and creatinine clearance. Main results: No significant difference in urine output, sodium excretion, HR, or creatinine clearance occurred in cats receiving low-dosage dopamine. A transient decrease in the mean arterial blood pressure occurred in cats receiving dopamine. Conclusions: Low-dosage dopamine cannot be expected to induce diuresis in healthy cats. Low-dosage dopamine may cause vasodilation in non-renal vascular beds.
Databáze: OpenAIRE