CARDIOVASCULAR
ENGINEERING
Journal for Extracorporeal Circulation, Assist Devices,Transplantation and Artificial Organs

Volume 8, 2003, No 1-2


Ultrasonic Dimension Transducer for Perioperative Monitoring of Left Ventricular Contractility
S. Tatebe, M. Nakazawa, M. J. Davies, V. T. Tsang, M. J. Elliott

Background and aim of the study: There have been few methods available in the pediatric cardiac surgery to assess the left ventricular contractility in the perioperative period. We present a new ultrasonic dimension transducer for monitoring myocardial contractility during the perioperative period.
Methods:
We modified the transducer in order to easily attach it onto the heart, and to remove it transcutaneously in a cardiac intensive care unit (CICU).
Results: This instrument was applied in 4 patients who underwent cardiac operation, and myocardial contractility was successfully monitored in the operating room and CICU as well. The transducer was smoothly removed with neither any complications nor consequences.
Conclusion: Our new transducer is safe and well tolerated clinically as well as ethically, and useful for perioperative assessment of myocardial contractility in clinical settings.

(CVE. 2003; 8 (1/2): 44-46)

Key words: myocardial contractility, perioperative monitoring, ultrasonometric method, cardiac intensive care unit


Shoh Tatebe, M.D., Ph.D.
Department of Thoracic and Cardiovascular Surgery
Niigata University Graduate School of Medicine
757 Asahimachi-Dohri 1
Niigata City, 951-8510
Japan
E-mail: statebe@yahoo.com



PSP-Logo
PABST SCIENCE PUBLISHERS
Lengerich, Berlin, Riga, Rom, Wien, Zagreb