在患有肺高血压的患者中检查肺微循环功能的导管检查
Kazunori Yamaji1, Ken-Ichiro Sasaki1, Masaharu Nakano1
1Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan.
一种新的以导管为基础的装置有效地评估肺高血压 (PH) 患者的肺微循环. 该研究确定了最佳的腺剂量和与尿酸和NT-proBNP水平相关的微循环阻力.
科学领域:
- 心血管医学 心血管医学
- 肺部医学 肺部医学
- 医疗器械 医疗器械
背景情况:
- 肺微循环评估对于肺高血压 (PH) 管理至关重要.
- 目前评估肺微循环的方法有限.
- 需要一种新型设备来评估PH患者的微循环功能.
研究的目的:
- 建立一种基于导管的新方法来评估PH患者的肺微循环.
- 为了评估肺流量储备,肺微循环阻力指数 (PIMR) 和肺电阻储备比.
- 确定诱导高血压的最佳腺剂量,并评估其与临床参数的相关性.
主要方法:
- 在19名中度PH患者中使用了带有温度和压力传感器的导线.
- 氨酸被用于诱导高血压,用于微循环评估.
- 分析了微循环指标,血清生物标志物,血液动力学,呼吸功能和运动能力之间的相关性.
主要成果:
- 在中度PH患者中,该程序是安全的和可行的.
- 对于没有严重副作用的最大高血压,最低有效的腺素剂量是150μg·kg-1·min-1.
- 高血压PIMR与血清尿酸 (p < 0.001) 和NT-proBNP (p = 0.014) 正相关.
结论:
- 这种以导管为基础的方法提供了一种有效的手段来评估PH的肺微循环功能.
- 对于此评估,最优的腺素剂量是150μg·kg-1·min-1.
- 高血压PIMR可以作为与PH中的特定生物标志物相关的有价值的指标.
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