Correction [to "Evaluation of a simple computer for cardiac output measurements based on thermal dilution"]

1964 ◽  
Vol BME-11 (1 & 2) ◽  
pp. 51-51
Keyword(s):  
Cardiac Output ◽  
Simple Computer ◽  
Cardiac Output Measurements ◽  
Thermal Dilution

Sterility of Prefilled Syringes for Thermal Dilution Cardiac Output Measurements

1979 ◽  
Vol 36 (9) ◽  
pp. 1156-1157
Author(s):  
Edward J. Mattea ◽  
Anthony N. Paruta ◽  
Leonard R. Worthen
Keyword(s):  
Cardiac Output ◽  
Prefilled Syringes ◽  
Cardiac Output Measurements ◽  
Thermal Dilution

In vitro determination of accuracy of cardiac output measurements by thermal dilution

1982 ◽  
Vol 33 (5) ◽  
pp. 409-414 ◽  
Author(s):  
Thomas V. Bilfinger ◽  
Chung-Yuan Lin ◽  
Constantine E. Anagnostopoulos
Keyword(s):  
Cardiac Output ◽  
Cardiac Output Measurements ◽  
Thermal Dilution

scholarly journals Cardiac Output Measurements by Thermal Dilution in Anaesthesia and Intensive Care

1973 ◽  
Vol 1 (5) ◽  
pp. 393-399 ◽  
Author(s):  
James Loughman
Keyword(s):  
Cardiac Output ◽  
Intensive Care ◽  
Practical Method ◽  
Indicator Dilution ◽  
Cardiovascular Disorders ◽  
Dilution Technique ◽  
Cardiac Output Measurements ◽  
Commercial Equipment ◽  
Thermal Dilution

Cardiac output measurements are rarely used in the evaluation of cardiovascular disorders encountered in anaesthesia and intensive care. The thermal dilution technique provides a practical method for its widespread introduction and only requires techniques already familiar to people working in this field. Adequate commercial equipment is now available in Australia, and a consideration of its use is presented. The principle of indicator dilution and its application is described. A comparison is made of dye and thermal dilution, and the relative advantages of two catheter systems for use in thermal dilution are discussed. The reported complications and those experienced by us are presented.

scholarly journals Feasibility of cardiac output measurements in critically ill patients by medical students

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Geert Koster ◽  
Thomas Kaufmann ◽  
Bart Hiemstra ◽  
Renske Wiersema ◽  
Madelon E. Vos ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Critical Care ◽  
Medical Students ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Left Ventricular ◽  
Percentage Error ◽  
Poor Agreement ◽  
Cardiac Output Measurements

Abstract Background Critical care ultrasonography (CCUS) is increasingly applied also in the intensive care unit (ICU) and performed by non-experts, including even medical students. There is limited data on the training efforts necessary for novices to attain images of sufficient quality. There is no data on medical students performing CCUS for the measurement of cardiac output (CO), a hemodynamic variable of importance for daily critical care. Objective The aim of this study was to explore the agreement of cardiac output measurements as well as the quality of images obtained by medical students in critically ill patients compared to the measurements obtained by experts in these images. Methods In a prospective observational cohort study, all acutely admitted adults with an expected ICU stay over 24 h were included. CCUS was performed by students within 24 h of admission. CCUS included the images required to measure the CO, i.e., the left ventricular outflow tract (LVOT) diameter and the velocity time integral (VTI) in the LVOT. Echocardiography experts were involved in the evaluation of the quality of images obtained and the quality of the CO measurements. Results There was an opportunity for a CCUS attempt in 1155 of the 1212 eligible patients (95%) and in 1075 of the 1212 patients (89%) CCUS examination was performed by medical students. In 871 out of 1075 patients (81%) medical students measured CO. Experts measured CO in 783 patients (73%). In 760 patients (71%) CO was measured by both which allowed for comparison; bias of CO was 0.0 L min−1 with limits of agreement of − 2.6 L min−1 to 2.7 L min−1. The percentage error was 50%, reflecting poor agreement of the CO measurement by students compared with the experts CO measurement. Conclusions Medical students seem capable of obtaining sufficient quality CCUS images for CO measurement in the majority of critically ill patients. Measurements of CO by medical students, however, had poor agreement with expert measurements. Experts remain indispensable for reliable CO measurements. Trial registration Clinicaltrials.gov; http://www.clinicaltrials.gov; registration number NCT02912624

scholarly journals Correlation of Carotid Blood Flow and Carotid Flow Time With Invasive Cardiac Output Measurements

CHEST Journal ◽  
2016 ◽  
Vol 150 (4) ◽  
pp. 297A
Author(s):  
Irene Ma ◽  
Joshua Caplin ◽  
Aftab Azad ◽  
Christina Wilson ◽  
Michael Fifer ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cardiac Output ◽  
Flow Time ◽  
Carotid Blood Flow ◽  
Cardiac Output Measurements ◽  
Carotid Flow
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