BACKGROUND: Cardiac output (CO) measurement in the intensive care unit (ICU) requires invasive devices such as the pulmonary artery (PA) catheter or arterial waveform pulse contour analysis (PCA). This study tests the accuracy and feasibility of point of care ultrasound (POCUS) of the common carotid artery to estimate the CO non-invasively and compare it to existing invasive CO measurement modalities. METHODS: Patients admitted to the surgical and cardiothoracic ICU in a tertiary university-affiliated academic center during a 4-month period, with invasive hemodynamic monitoring devices for management, were included in this cohort study. Common carotid artery POCUS was performed to measure the CO and the results were compared to an invasive device. RESULTS: Intensivists and ICU fellows, using ultrasound of the common carotid artery, obtained the CO measurements. Images of the Doppler flow and volume were obtained at the level of the thyroid gland. Concurrent CO measured via invasive devices was recorded. The patient cohort comprised 36 patients; 52 % were females. The average age was 59 ± 13 years, and 66 % were monitored via PCA device and 33 % via PA catheter. Intraclass correlation coefficient (ICC) analysis demonstrated almost perfect correlation (0.8152) between measurements of CO via ultrasound vs. invasive modalities. The ICC between POCUS and the invasive measurement via PCA was 0.84 and via PA catheter 0.74, showing substantial agreement between the ultrasound and both invasive modalities. CONCLUSIONS: Common carotid artery POCUS offers a non-invasive method of measuring the CO in the critically ill population.
BACKGROUND: Cardiac output (CO) measurement in the intensive care unit (ICU) requires invasive devices such as the pulmonary artery (PA) catheter or arterial waveform pulse contour analysis (PCA). This study tests the accuracy and feasibility of point of care ultrasound (POCUS) of the common carotid artery to estimate the CO non-invasively and compare it to existing invasive CO measurement modalities. METHODS:Patients admitted to the surgical and cardiothoracic ICU in a tertiary university-affiliated academic center during a 4-month period, with invasive hemodynamic monitoring devices for management, were included in this cohort study. Common carotid artery POCUS was performed to measure the CO and the results were compared to an invasive device. RESULTS: Intensivists and ICU fellows, using ultrasound of the common carotid artery, obtained the CO measurements. Images of the Doppler flow and volume were obtained at the level of the thyroid gland. Concurrent CO measured via invasive devices was recorded. The patient cohort comprised 36 patients; 52 % were females. The average age was 59 ± 13 years, and 66 % were monitored via PCA device and 33 % via PA catheter. Intraclass correlation coefficient (ICC) analysis demonstrated almost perfect correlation (0.8152) between measurements of CO via ultrasound vs. invasive modalities. The ICC between POCUS and the invasive measurement via PCA was 0.84 and via PA catheter 0.74, showing substantial agreement between the ultrasound and both invasive modalities. CONCLUSIONS: Common carotid artery POCUS offers a non-invasive method of measuring the CO in the critically ill population.
Entities:
Keywords:
Cardiac output; Carotid doppler; Point of care ultrasound; Pulmonary artery catheter; Pulse contour analysis; Ultrasound
Authors: B M Eicke; J von Schlichting; S Mohr-Ahaly; A Schlosser; R S von Bardeleben; F Krummenauer; H C Hopf Journal: J Ultrasound Med Date: 2001-12 Impact factor: 2.153
Authors: Keith Killu; John M Oropello; Anthony R Manasia; Roopa Kohli-Seth; Adel Bassily-Marcus; Andrew Leibowitz; Rosanna DelGiudice; Victor Murgolo; Ernest Benjamin Journal: Crit Care Med Date: 2007-05 Impact factor: 7.598
Authors: Jon-Émile S Kenny; Igor Barjaktarevic; Andrew M Eibl; Matthew Parrotta; Bradley F Long; Joseph K Eibl Journal: Health Sci Rep Date: 2020-10-05
Authors: Tom Peachey; Andrew Tang; Elinor C Baker; Jason Pott; Yonathan Freund; Tim Harris Journal: Scand J Trauma Resusc Emerg Med Date: 2016-09-02 Impact factor: 2.953
Authors: Valentina Girotto; Jean-Louis Teboul; Alexandra Beurton; Laura Galarza; Thierry Guedj; Christian Richard; Xavier Monnet Journal: Ann Intensive Care Date: 2018-05-29 Impact factor: 6.925
Authors: Ethan C Hill; Terry J Housh; Joshua L Keller; Cory M Smith; Richard J Schmidt; Glen O Johnson Journal: J Musculoskelet Neuronal Interact Date: 2018-12-01 Impact factor: 2.041