Cardiac Output Measurement by TEE
Status unconfirmed
Conditions studied: Cardiac Disease
In brief
Transesophageal echocardiography (TEE) has become a standard monitoring tool during cardiac surgery. It allows continuous accurate assessment of heart structures and function without interfering with the surgery and the anesthetics. The imaging of cardiac structures is used to direct optimal surgical intervention and assess surgical results. Cardiac output (CO) is the result of stroke volume (SV) multiplied by the heart rate. Measurement of cardiac output (CO) is used to quantify the performance of the left ventricle. It is commonly achieved using a pulmonary artery catheter (PAC) (also known ad Swann-Ganz catheter). A known amount of saline solution is injected in the proximal part of the catheter and the variation of blood temperature detected at the tip. Cardiac output is measured based on the duration and degree of temperature change. This method remains an accepted gold standard. TEE allows measurement of cardiac output using a number of different 2D and 3D imaging modalities. Although current guidelines identify the Method of the Disks(MOD) as the gold standard other technique could potentially be more precise. In this study, the investigators want to assess the accuracy of four different TEE methods to measure cardiac output compared with Thermodilution as a standard of care.
Key facts
- Study ID
- NCT03349970
- Run by
- University Health Network, Toronto
- People needed
- 60
- Starts
- 2017-08-01
- Expected to finish
- 2019-12-01
- Last updated by the study team
- 2019-05-14
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- age >18
- undergoing elective CABG, AV or aortic surgery (aortic root and ascending aortic arch surgery), with CPB.
You may not qualify if…
- Emergency surgery
- Moderate or severe valve pathology
- Atrial fibrillation
- Patients with known contraindications to either the insertion of a PAC or the use of TEE.
Where it is running
- Weill Cornell Medicine — New York, New York, United States
- Toronto General Hopsital — Toronto, Ontario, Canada
Full record on ClinicalTrials.gov
Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.