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Effects of Nonpulsatile Flow in the Systemic and Pulmonary Circulation on the Impedance Cardiogram Tomoko Goto 1 , Hidenori Terasaki 1 , Tohru Morioka 1 , Yuko Saito 1 1Department of Anesthsiology, Kumamoto University Medical School pp.69-74
Published Date 1981/1/15
DOI https://doi.org/10.11477/mf.1404203704
  • Abstract
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Blood was drawn through an outlet canula in-serted into the ascending aorta of dogs to a reservoir. The blood was pumped up to another higher reservoir with a roller pump, then allowed to flow down into the ascending aorta through an inlet canula by gravity. Thus the systemic circulation became nonpulsatile. When both the outlet and inlet canulas were shunted, thus by-passing the reservoirs, the systemic circulation became pulsatile again by its own heart action.

With the same principle, blood was drawn from the right ventricle via an outlet canula, then allowed to flow to the pulmonary artery via the two reservoirs and an inlet canula. Thus the pulmonary circulation was reciprocally alter-nated from pulsatile to nonpulsatile, or vice versa.


Copyright © 1981, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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