Correlation of Carotid Doppler Blood Flow With Invasive Cardiac Output Measurements in Cardiac Surgery Patients.
J Cardiothorac Vasc Anesth
; 36(4): 1081-1091, 2022 04.
Article
en En
| MEDLINE
| ID: mdl-34756675
ABSTRACT
OBJECTIVE:
Carotid Doppler ultrasound has been a topic of recent interest, as it may be a promising noninvasive hemodynamic monitoring tool. In this study, the relation between carotid artery blood flow and invasive cardiac output (CO) was evaluated.DESIGN:
A prospective, observational study.SETTING:
A single-institution, tertiary referral hospital.PARTICIPANTS:
Eighteen elective cardiac surgery patients.INTERVENTIONS:
CO was measured by calibrated pulse contour analysis. Simultaneously, carotid artery pulsed-wave Doppler measurements were obtained in the operating room in three clinical settings after induction of anesthesia (T1), after a passive leg raise maneuverer (T2), and at the end of surgery (T3). MEASUREMENTS AND MAINRESULTS:
Correlation and trending between carotid artery blood flow and invasive CO were evaluated. Furthermore, two Bland-Altman plots were constructed to evaluate the level of agreement between carotid artery-derived CO and invasive CO measurements. Carotid artery blood flow correlated moderately with invasive CO (ρ = 0.67, 95% confidence interval 0.56-0.76, p < 0.05). Concordance between the percentage change of carotid artery blood flow and invasive CO from T1 to T3 was 72%. The level of agreement between carotid artery-derived CO and invasive CO was ±2.29; ±2.57 L/min, with a bias of 0.1; -0.54 L/min, and mean error of 50% and 48%, for the two Bland-Altman analyses, respectively. Intraexamination precision was acceptable.CONCLUSIONS:
In cardiac surgery patients, carotid artery blood flow correlated moderately with invasive CO measurements. However, the trending ability of carotid artery blood flow was poor, and carotid artery-derived CO tended not to be interchangeable with invasive CO.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Termodilución
/
Procedimientos Quirúrgicos Cardíacos
Tipo de estudio:
Observational_studies
Límite:
Humans
Idioma:
En
Revista:
J Cardiothorac Vasc Anesth
Asunto de la revista:
ANESTESIOLOGIA
/
CARDIOLOGIA
Año:
2022
Tipo del documento:
Article