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Measurement of Cardiac Output and Blood Volumes Using Transonic Ultrasound Dilution Technology

This study has been completed.
Russian Academy of Medical Sciences
Information provided by (Responsible Party):
Transonic Systems Inc. Identifier:
First received: September 17, 2008
Last updated: May 30, 2012
Last verified: May 2012

Measurement of the amount of blood pumped by the heart (cardiac output) and blood volumes in sick patients is important for doctors to better treat these patients. Current procedures available demand difficult invasive procedures and hence these parameters are not measured with enough frequency and are also limited to certain patients. The new COstatus system is capable of using the already existing arterial and venous lines placed in critically ill patients and thus provides an opportunity to measure these parameters less invasively and with enough frequency.

The purpose of this study is to measure cardiac output and blood volumes using ultrasound dilution technology (COstatus system)in post cardiac surgery adult patients and compare the cardiac output measurements with a current clinical reference method, thermodilution.

Post Cardiac Surgery Patients

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Measurement of Cardiac Output and Blood Volumes Using Transonic Ultrasound Dilution Technology - Clinical Evaluation and Validation

Further study details as provided by Transonic Systems Inc.:

Enrollment: 26
Study Start Date: December 2006
Study Completion Date: December 2009
Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   21 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Post cardiac surgery adult patients

Inclusion Criteria:

  • Post cardiac surgery adult patients
  • Patients with heart catheter and arterial catheter

Exclusion Criteria:

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Please refer to this study by its identifier: NCT00756119

Russian Federation
National Research Center of Surgery, Russian Academy of Medical Sciences
Moscow, Russian Federation, 119992
Sponsors and Collaborators
Transonic Systems Inc.
Russian Academy of Medical Sciences
Principal Investigator: Alexsandr A Eremenko, MD Russian Academy of Medical Sciences