A comparison of a new, non-invasive device for the estimation of stroke volume with the continuous thermodilution technique using a pulmonary artery catheter, before and after a fluid bolus in patients undergoing cardiac surgery.

Dr. Alan J. Broderick0 sites25 target enrollmentJuly 19, 2012

Overview

Phase: 未知
Intervention: Not specified
Conditions: Patients who require a pulmonary artery catheter to be inserted in order to measure cardiac output as part of their anaesthetic care when undergoing cardiac surgery.
Sponsor: Dr. Alan J. Broderick
Enrollment: 25
Status: Completed
Last Updated: 6 years ago

No summary available.

Registry

who.int

Start Date

July 19, 2012

End Date

March 16, 2016

Last Updated

6 years ago

Study Type

Interventional

Sex

All

Sponsor

Dr. Alan J. Broderick

•Patients due to undergo cardiac surgery.
•Pulmonary artery catheter required to be inserted prior to commencement of surgery.

•Patient refusal (or inability to provide full informed consent).
•Ejection fraction \<30% (avoids potential difficulties with giving the fluid bolus).
•Cardiac arrhythmias present at induction.
•Known moderate (or worse) tricuspid regurgitation (makes thermodilution estimates of CO inaccurate).
•Known moderate (or worse) aortic regurgitation (previous studies using pulse contour analysis have excluded these – causes an abnormal pulse signal).
•Presence of an intra\-aortic balloon counterpulsation device (cause an abnormal pulse signal, device may give inaccurate readings).
•Known haemoglobinopathy (novel device will not read correctly).