バリストカルヂオグラムの基本的分析 (第6報) : K波の分析

概要

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In previous report it was assured that K wave is caused not by after-Vibration of J wave but some hemodynamic impulse. In this report the author examined what is this impulse, and it was concluded that K wave is caused by the impulse of pulse wave when it, descending the aorta, changes its direction from vertical to horizontal (im my apparatus patients sits on the chair). This conclusion made the calculation of pulse volume at the end of aorta possible. This formula is as follows : Pulse volume at the end of aorta=∫kdt/υ where ∫kdt : area of K wave (gcm/sec) υ : Velocity of Pulse wave (cm/sec) In connection with this, the author referred to the possibility to formulate the relation of blood pressure and velocity of Pulse wave. This formula is as follows : υ=163√<p/ρ> where υ : velocity of Pulse wave (cm/sec) p : blood pressure (cm Hg) ρ : specific gravity of blood
社団法人日本循環器学会の論文
1958-09-20