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Two non-invasive blood pressure (NIBP) devices (oscillometry and Doppler) were compared to invasive blood pressure using a Bland–Altman analysis, in anesthetized and conscious dogs. When considering the systolic arterial pressure only during general anesthesia, both NIBP devices slightly underestimated the systolic arterial blood pressure however the precision and the limits of agreement for the Doppler were of a greater magnitude. This indicates a worse clinical performance by the Doppler. The performance of both NIBP devices deteriorated as measured in conscious animals. In general, for the oscillometric device, determination of invasive diastolic and mean arterial pressures was better than the invasive systolic arterial pressure. Overall, the oscillometric device satisfied more of the criteria set by the American College of Veterinary Internal Medicine consensus statement. Based upon these results, the oscillometric device is more reliable than the Doppler in the determination of blood pressure in healthy medium to large breed dogs. 相似文献
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Bicer S Nakayama T Hamlin RL 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2002,16(3):247-254
Amiodarone, a class III antiarrhythmic with beta-adrenergic blocking and antimuscarinic properties, has a wide spectrum of clinical use in humans. This study was conducted to establish the effects of a 25 mg/kg q12h loading dose and a 30 mg/kg q24h maintenance dose of amiodarone, each given PO for 3.5 weeks, on systemic arterial pressure, echocardiographic (ECHO) indices of left ventricular function, ECGs, exercise tolerance, and serum biochemistries in adult, clinically normal dogs. Means were calculated and were compared by analysis of variance with repeated measures. When a significant F statistic was identified, specific means were compared by Bonferroni's post hoc test. Body weight and heart rate (HR) decreased, and PQ, QT, and corrected QT (QTc) increased significantly (P < .05) for the weeks that the dogs received the loading dose, but all parameters returned to values the same as those in the pretest for the weeks when dogs received the maintenance dose. Serum activity of hepatic enzyme activities and cholesterol concentrations increased, and serum concentrations of thyroid hormones (triiodothyronine [T3] and thyroxine [T4]), phosphorous, and total carbon dioxide decreased. The changes in PQ, QT, and QTc are similar to those obtained previously, but the detailed ECG and ECHO observations have not been reported. A dose of 25 mg/kg q12h, but not 30 mg/kg q24h, is an appetite suppressant, and the lower dose produces neither ECG nor ECHO changes of clinical or toxicological significance in normal dogs. 相似文献
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