HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Author home page(s): Takeshi Nakatani Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Takano, H. Articles by Nakatani, T. Search for Related Content PubMed PubMed Citation Articles by Takano, H. Articles by Nakatani, T.

Ann Thorac Surg 1996;61:317-322
© 1996 The Society of Thoracic Surgeons

---

Experience With Devices With Limited Availability

Ventricular Assist Systems: Experience in Japan With Toyobo Pump and Zeon Pump

National Cardiovascular Center Research Institute, Osaka, Japan

Abstract

Background. Two types of ventricular assist systems have been approved for use by the Japanese government.

Methods. The two government-approved ventricular assist systems, the Toyobo pump (National Cardiovascular Center type) and the Zeon pump (Tokyo University type), were applied to 219 patients in Japan as of October 20, 1994.

Results. Adult-sized were used in 211 patients and pediatric ones in 8 patients. Left ventricular assist systems was performed in most cases (82.6%). The predominant indication was failure to be weaned from cardiopulmonary bypass (65.8%). The duration of ventricular assist system application ranged from 1 hour to 70 days, and the mean was 7.3 days, excluding the patients with cardiomyopathy. The weaning rate was 48.8% and the survival rate was 25.6%. Main causes of death were heart failure including unrecoverable heart failure and multiple organ failure. In 12 cardiomyopathy patients, Toyobo pumps were applied as left ventricular assist systems. Support duration was from 13 days to 192 days (ongoing). One patient was bridged to transplantation successfully and 1 was weaned after 3 months of support.

Conclusions. From these data, the Toyobo pump and the Zeon pump are useful for short-term support for acute, profound heart failure. The Toyobo pump also may provide sufficient support as a bridge to transplantation for the medium term.

This article has been cited by other articles:

				R. M. Suri, R. C. Daly, J. A. Dearani, and C. G.A. McGregor Successful Use of Thoratec Biventricular Support in a Small Child Awaiting Cardiac Transplantation Ann. Thorac. Surg., November 1, 2005; 80(5): 1920 - 1922. [Abstract] [Full Text] [PDF]

				Y. Asaumi, S. Yasuda, I. Morii, H. Kakuchi, Y. Otsuka, A. Kawamura, Y. Sasako, T. Nakatani, H. Nonogi, and S. Miyazaki Favourable clinical outcome in patients with cardiogenic shock due to fulminant myocarditis supported by percutaneous extracorporeal membrane oxygenation Eur. Heart J., October 2, 2005; 26(20): 2185 - 2192. [Abstract] [Full Text] [PDF]

				S. Kitamura, T. Nakatani, K. Bando, Y. Sasako, J. Kobayashi, and T. Yagihara Modification of bicaval anastomosis technique for orthotopic heart transplantation Ann. Thorac. Surg., October 1, 2001; 72(4): 1405 - 1406. [Abstract] [Full Text] [PDF]

				A K Mahmood, J M Courtney, S Westaby, M Akdis, and H Reul Critical review of current left ventricular assist devices Perfusion, September 1, 2000; 15(5): 399 - 420. [PDF]