BioConst 生物常量

研究・一般情報としての参考です。BioConst は内容を継続的に修正しますが、誤りを含む可能性があります。診断、投薬、検査、治療の判断は医師の指導に従ってください。

医学 Wiki

Arterial compliance / stiffness

How much arterial walls stretch when pressure and volume change.

閲覧: 12

これは何か

Arterial compliance describes how much arterial volume changes for a given pressure change; lower compliance means a stiffer arterial wall.[1]

なぜ重要か

Stiffer arteries absorb less of each heartbeat's volume pulse, so pressure waves and pulse pressure can rise more easily.[2,1]

異常値が生じる根本原因

  • Core relation: A softer arterial wall expands and stores part of the heartbeat's energy; a harder wall expands less, so the same stroke volume becomes a larger pressure rise.[1,2]

どの判断に影響するか

  • It is a mechanism node for pulse pressure, systolic pressure, aging-related vessel context, and vascular load.[2]

解釈上の注意

  • Routine blood pressure does not directly measure arterial stiffness.[2]

関連疾患

高血圧と心臓負荷