在麻醉狗的腹腔内灌注后,罗皮瓦卡因的药理动力学:随机临床试验
Natali Verdier1, Karin Hummel2, Valentin Al-Jalali3
1Anaesthesia and Perioperative Intensive Care, Clinical Centre for Small Animal Health and Research, Clinical Department for Small Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria.
Veterinary anaesthesia and analgesia
|January 26, 2026
概括
这项研究评估了经过手术的狗体内罗皮瓦卡因的药理动力学. 较高剂量导致罗皮瓦卡因血度增加,但仍低于毒性水平.
科学领域:
- 兽医麻醉学 兽医麻醉学
- 药理动力学 药理动力学
- 局部麻醉剂 局部麻醉剂
背景情况:
- 腹腔内罗皮瓦卡因用于兽医手术中的止痛.
- 了解其药理动力学对于安全有效的剂量至关重要.
研究的目的:
- 在狗中评估两剂内罗皮瓦卡因的药理动力学.
- 为了确定血度,并比较剂量之间的最大度 (Cmax).
主要方法:
- 一项随机临床试验,涉及20只接受卵巢切除/卵巢切除的狗.
- 狗接受了1毫克/千克 (R1) 或3毫克/千克 (R3) 的腹腔内罗皮瓦卡因.
- 在240分钟内测量了血罗皮瓦卡因度;分析了药理学参数和Cmax.
主要成果:
- 与R1组相比,R3组的总和自由罗皮瓦卡因Cmax显著更高.
- 在灌入后5-15分钟内观察到度峰值.
- 罗皮瓦卡因中位数与血蛋白结合为92.5%;没有观察到心血管毒性.
结论:
- 较高的腹膜内罗皮瓦卡因剂量导致狗的血度增加.
- 尽管剂量取决于增加,ropivacaine Cmax在本研究中仍然低于毒性水平.
- 这些发现支持在兽医麻醉中使用腹腔内罗皮瓦卡因,并仔细考虑剂量.
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