吸入性皮质类固醇的输送明显受到呼吸模式和门保持室模型的影响
Laura Ojanperä1,2, Lauri Lehtimäki2,3, Heini Huhtala4
1Centre for Child Health Research, Tampere University, Arvo Ylpön katu 34, Tampere, 33520, Finland.
Pediatric pulmonology
|September 30, 2024
概括
在儿童中使用门保持室 (VHC) 进行吸入性皮质类固醇的有效输送因VHC模型和呼吸模式而异. 眼镜室钻石 (OD) 证明了在儿科使用中提供最佳的流动.
科学领域:
- 药理学 药理学是指药理学的学科.
- 呼吸系统医学 呼吸系统医学
- 生物医学工程 生物医学工程
背景情况:
- 有限的高质量的研究存在于高效的吸入性皮质类固醇在儿童使用门支室 (VHCs) 的交付.
- 优化VHC使用对于有效的喘管理和尽量减少儿科患者的副作用至关重要.
研究的目的:
- 为了比较使用四种不同的VHCs从计量剂量吸入器 (pMDI) 输送的流动的体外剂量 (DD) 和细颗粒剂量 (FPD).
- 评估儿科和成人呼吸模式对各种HCV模型中的流动沙龙输送效率的影响.
主要方法:
- 四个VHC (AeroChamber加Flow-Vu,Babyhaler,EasyChamber,OptichamberDiamond) 经过测试,使用了fluticasone pMDI. 这两种方法进行了测试.
- 在试验室设置中,使用了儿童喉模型,下一代冲击器和呼吸模拟器来模仿4岁和6岁儿童的潮呼吸,以及成年人的单次吸入.
主要成果:
- 在所有呼吸模式中,光室钻石 (OD) 在喉中显示出最少的流动沉积.
- 与成年人吸入相比,OD和EasyChamber (EC) 在可呼吸范围 (1-5μm) 中提供了较高的剂量,具有儿科呼吸特征.
- 与其他VHC相比,Babyhaler (BH) 在潮呼吸期间显示出明显较低的中位DD和FPD (1-5μm).
结论:
- 呼吸模式和VHC模型显著影响流动的输送效率.
- 喉沉积和FPD的差异对管理呼吸道炎症和副作用有潜在的临床影响.
- 采用现实的儿科呼吸模式的标准化测试方法对于评估用于儿科使用的VHC至关重要.
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