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Concept of left atrial pressure estimation using its pulsatile amplitude in the helical flow total artificial heart

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  • Artificial Heart (Basic)
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Abstract

The total artificial heart (TAH) requires physiological control to respond to the metabolic demand of the body. To date, 1/R control is a single physiological control method that can control venous pressure. To realize an implantable 1/R control system, we are developing a new pressure measuring method using absolute pressure sensor. To find a method for absolute pressure sensor, which went well without calibration, concept of left atrial pressure (LAP) estimation using its pulsatile amplitude was proposed. Its possibility was investigated with two long-term survived goats whose hearts were replaced with the helical flow TAHs. In manual control condition, there existed a positive relation between mean LAP (mLAP) and normalized pulsatile amplitude (NPA). Percent systole revealed not to affect the relationship between mLAP and NPA. Dispersion was observed between different pulse rates. As for cardiac output difference (QLD) that is the difference of flow rate between systolic and diastolic phases, similar results were obtained except in low QLDs. In the 1/R control condition, relatively high correlation between mLAP and NPA could be obtained. In estimation of mLAP using the correlating function of individual goat, fairly good correlation was obtained between measured mLAP and estimated mLAP. Despite that further studies are necessary, it was demonstrated that the concept of the LAP estimation could be possible.

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References

  1. Hiller KW, Seidel W, Kolff WJA. Servo mechanism to drive an artificial heart inside the chest. ASAIO Trans. 1962;8:125–30.

    Article  CAS  Google Scholar 

  2. Auhero TX, Magovern JA, Rosenberg G, Pal WE, Donachy JH, Pierce WS. Long-term survival with a pneumatic artificial heart. ASAIO Trans. 1987;33:157–61.

    Google Scholar 

  3. Vasku J. Perspectives of total artificial heart research as a valuable modelling system for general physiology and pathophysiology. In: Akutsu T, Koyanagi H, editors. Heart replacement-artif heart 4. Tokyo: Springer; 1992. p. 161–71.

    Google Scholar 

  4. Hennig E, Grosse-Siestrup C, Krautzberger W, Kless H, Bucherl ES. The relationship of cardiac output and venous pressure in long surviving calves with total artificial heart. ASAIO Trans. 1978;24:616–23.

    CAS  Google Scholar 

  5. Takatani S, Harasaki H, Koike S, Yada I, Yozu R, Fujimoto L, Murabayashi S, Jacobs G, Kiraly R, Nosial. Optimum control mode for a total artificial heart. ASAIO Trans. 1982;28:148–53.

    CAS  Google Scholar 

  6. Pierce WS, Landis D, O’bannon W, Pierce WS, Landis D, O’Bannon W, Donachy JH, White W, Phillips W, Brighton JA, et al. Automatic control of artificial heart. ASAIO Trans. 1976;22:347–56.

    CAS  Google Scholar 

  7. Snyder AJ, Rosenberg G, Reibson J, Donachy JH, Prophet GN, Arenas J, Daily B, Mcgary S, Kawaguchi O, Quinn R, Pierce WS. An electrically powered total artificial heart-Over one year survival in the calf. ASAIO J. 1992;38:M707–12.

    Article  CAS  PubMed  Google Scholar 

  8. Abe Y, Chinzei T, Mabuchi K, Snyder AJ, Isoyama T, Imanishi K, Yonezawa T, Matsuura H, Kouno A, Ono T, Atsumi K, Fujimasa F, Imachi K. Physiological control of a total artificial heart: conductance- and arterial pressure-based control. J Appl Physiol. 1998;84:868–76.

    CAS  PubMed  Google Scholar 

  9. Abe Y, Chinzei T, Mabuchi K, Isoyama T, Baba K, Matsuura H, Kouno A, Ono T, Mochizuki S, Sun YP, Imanishi K, Atsumi K, Fujimasa I, Imachi K. Over 500 days survival of a total artificial heart goat with 1/R control. In: Akutsu T, Koyanagi H, editors. Heart replacement: artificial heart 6. Tokyo: Springer; 1998. p. 34–40.

    Chapter  Google Scholar 

  10. Abe Y, Ishii K, Isoyama T, Saito I, Inoue Y, Sato M, Hara S, Hosoda K, Ariyoshi K, Nakagawa H, Ono T, Fukazawa K, Ishihara K, Imachi K. The helical flow total artificial heart: implantation in goats. Conf Proc IEEE Eng Med Biol Soc. 2013;2013:2720–3.

  11. Abe Y, Ishii K, Isoyama T, Saito I, Inoue Y, Ono T, Nakagawa H, Nakano E, Fukazawa K, Ishihara K, Fukunaga K, Ono M, Imachi K. The helical flow pump with a hydrodynamic levitation impeller. J Artif Organs. 2012;15:331–40.

    Article  PubMed  Google Scholar 

  12. Yoshizawa M, Sato T, Tanaka A, Abe K, Takeda H, Yambe T, Nitta S, Nosé Y. Sensorless estimation of pressure head and flow of a continuous flow artificial heart based on input power and rotational speed. ASAIO J. 2002;48:443–8.

    Article  PubMed  Google Scholar 

  13. Shi W, Saito I, Isoyama T, Nakagawa H, Inoue Y, Ono T, Kouno A, Imachi K, Abe Y. Automatic calibration of the inlet pressure sensor for the implantable continuous-flow ventricular assist device. J Artif Organs. 2011;14:81–8.

    Article  PubMed  Google Scholar 

  14. Saito I, Chinzei T, Isoyama T, Miura H, Kouno A, Ono T, Nakagawa H, Yamaguchi-Sekino S, Shi W, Inoue Y, Kishi A, Abe Y. Implementation of the natural heartbeat synchronize control for the undulation pump ventricular assist device using the inflow pressure. IFMBE Proc. 2008;19:62–5.

    Article  Google Scholar 

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Acknowledgments

The study was supported in part by the JSPS KAKENHI (22249053) and (22240054).

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There is no conflict of interest needed to disclose in this study.

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Correspondence to Itsuro Saito or Yusuke Abe.

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Wu, SY., Saito, I., Isoyama, T. et al. Concept of left atrial pressure estimation using its pulsatile amplitude in the helical flow total artificial heart. J Artif Organs 17, 301–307 (2014). https://doi.org/10.1007/s10047-014-0788-7

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  • DOI: https://doi.org/10.1007/s10047-014-0788-7

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