Comparison of Cardiac Output Measured by Ultrasound Dilution Method and Pulmonary Artery Thermodilution Technique
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Cardiac output (CO) is an important hemodynamic variable in the management of critically ill patients. The pulmonary artery catheter (PAC) requires invasive techniques with potential complications and there is increasing interest in less invasive methods of measuring CO. This study is designed to compare CO values from PAC thermodilution (COTD) and ultrasound dilution (COUD).
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Layout table for eligibility information
Ages Eligible for Study:
18 Years to 100 Years (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Age ≥ 18 years of age Presence of arterial catheter plus central venous pressure monitor and pulmonary artery catheter for hemodynamic monitoring.
Age ≥ 18 years of age
Presence of arterial catheter plus central venous pressure monitor and pulmonary artery catheter for hemodynamic monitoring.
Age < 18 years of age
Patients with structurally abnormal heart (e.g. shunt) (confirmed by history taking)
Patients who have heparin allergy. (Confirmed by history taking)