Dynamic response of the pulmonary circulation in a continuous flow artificial heart system

P. S. Olegario, M. Yoshizawa, A. Tanaka, Y. Shiraishi, D. Ogawa, T. Hanaoka, K. Abe, T. Yambe, S. Nitta

Research output: Contribution to conferencePaperpeer-review


Pulmonary circulation dynamics is important when considering bi-ventricular assist devices (BiVAD) or total artificial heart (TAH) systems, and in investigating the mechanism of atrial suction in order to design better control algorithms. In this study, we investigated pulmonary circulation dynamics in a continuous flow artificial heart system by performing acute tests on a mature goat. By varying the right pump speed, we were able to observe the dynamic response of the left atrial pressure (LAP) and simulate conditions that result in atrial suction. We were able to measure the time constant of the LAP response to changes in right pump output in the TAH configuration. These results may prove useful in the design of a new mock circulatory system that incorporates the dynamics of the pulmonary circulation, and in the improvement of existing control algorithms to prevent atrial wall suction.

Original languageEnglish
Number of pages4
Publication statusPublished - 2004
EventSICE Annual Conference 2004 - Sapporo, Japan
Duration: 2004 Aug 42004 Aug 6


ConferenceSICE Annual Conference 2004


  • Artificial heart
  • Atrial collapse
  • Continuous flow pump


Dive into the research topics of 'Dynamic response of the pulmonary circulation in a continuous flow artificial heart system'. Together they form a unique fingerprint.

Cite this