德克斯梅德托米丁在绵羊中具有心肺呼吸,血液动力和镇静作用
Janainne Hilbig Gomes1, Isabela Plazza Bittar1, Rauane Sousa de Moura2
1Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Brazil.
Laboratory animals
|November 21, 2024
概括
在绵羊中,用德克斯梅德托米丁 (DEX) 连续速率输注 (CRI) 引起的心肺呼吸系统变化比IV玻尿酸注射少. 德克斯CRI导致不那么深刻的镇静,可能需要额外的镇静处理.
科学领域:
- 兽医麻醉学 兽医麻醉学
- 药理学 药理学是指药理学的学科.
- 动物科学动物科学
背景情况:
- 静脉注射 (IV) 胆量注射α-2上腺激动剂可以引起不良反应.
- 持续速率输注 (CRI) 正在探索,以尽量减少这些影响.
- 镇静方案对于绵羊手术至关重要,需要对不同的施用方法进行评估.
研究的目的:
- 为了比较IV玻尿酸注射的心肺和镇静作用与羊群中德克斯梅托米丁 (DEX) 的CRI.
- 在羊模型中评估DEX注射途径的安全性和有效性.
主要方法:
- 六只成年雄羊通过静脉栓塞 (5微克/千克) 或CRI (5微克/千克/小时1小时) 给予DEX.
- 心肺参数 (心率,血压,呼吸率,血液气体,血液动力学) 和镇静得分被监测了120分钟.
- 进行了统计分析,以比较DEX bolus与DEX CRI的影响.
主要成果:
- 与DEX CRI相比,DEX玻尿酸导致心率显著降低,并诱导氧气低血.
- 玻尿酸剂的使用导致心脏指数的更大降低和肺血管抵抗指数的增加.
- 镇静得分在DEX玻尿酸治疗中更高,表明镇静程度比DEX CRI更深.
结论:
- 与羊的玻尿酸注射相比,DEX CRI的使用导致心肺呼吸和血液动力学变化较少.
- 虽然CRI提供了更光滑的形状,但对于需要完全不移动的程序,镇静水平可能不足.
- 在CRI中,负载剂量被确定为实现恒定输液效应的限制.
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