Clinical Utility of Cw Doppler Ultrasound for Measuring Cardiac Output (Uscom)

Heerman,; Churchwell, William J; Taylor, Kevin B.; Carell, Mary B Monroe

doi:10.1097/00130478-200611001-00028

Cited by 2 publications

(7 citation statements)

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“…CO in children using the USCOM technique has been reported in only a very small number of studies in neonates 9,10 and children 11–13 . A study in neonates compared with RVO ECHO to RVO USCOM , and found a good correlation 9 .…”

Section: Discussionmentioning

confidence: 98%

“…CO in children using the USCOM technique has been reported in only a very small number of studies in neonates 9,10 and children. [11][12][13] A study in neonates compared with RVOECHO to RVOUSCOM, and found a good correlation. 9 This study did not measure LVO, and thus, a direct comparison cannot be made with the current study although the ranges of RVO were in line with the current study even though the neonates were of lower gestation and birth weight (1.13 Ϯ 0.47 kg).…”

Section: Discussionmentioning

confidence: 99%

“… 11 compared the CO in seven children <5 years old, 24 h after cardiac surgery. They used either LVO USCOM or RVO USCOM depending on the quality of the trace and found good intra‐operator agreement (one operator), although they did not compare the difference between LVO USCOM and RVO USCOM for any patient 11 . Brierley et al.…”

Section: Discussionmentioning

confidence: 99%

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Assessment of portable continuous wave Doppler ultrasound (ultrasonic cardiac output monitor) for cardiac output measurements in neonates

Meyer

Todd

Shadboldt

2009

J Paediatrics Child Health

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Background and study purpose: The ultrasonic cardiac output monitoring (USCOM, USCOM Pty Ltd, Coffs Harbour, NSW, Australia) device provides a new method of non-invasively assessing cardiac output (CO). It has been successfully used in adults, but there have been few studies in neonates. Aims: To study the inter-operator reliability, and to compare the aortic (systemic) CO and pulmonary CO in a neonatal population. Patient and methods:In a study using the USCOM device, we have determined: (i) the inter-operator (rater) agreement for aortic (left ventricular output) and pulmonary (right ventricular output) CO; and (ii) by combining the measurements of aortic and pulmonary CO from each operator to obtain average aortic and pulmonary CO in neonates admitted to the neonatal unit during the first 8 days of life. Neonates with congenital heart disease were excluded from the study. Results: Twelve neonates were enrolled in the study, and their mean gestational age was 34.1 Ϯ 3.7 weeks, mean birth weight 2.268 Ϯ 0.872 kg with eight boys and four girls. There was no significant difference in CO measurements between the two operators (inter-rater correlation = 0.93 (0.86-0.97 (95% CI), P < 0.0001). However, the mean aortic CO was significantly lower than the mean pulmonary CO (228 mL/kg/min (202-254 (95% CI)) versus 282 mL/kg/min (256-309 (95% CI), P = 0.006). Conclusions: Although there was a good correlation between operators, further investigations are required to study the discrepancy between aortic (systemic)/pulmonary CO in this population. Other than this discrepancy, the validity of this technique in neonates requires further detailed studies as it uses continuous wave Doppler for the measurements.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

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Assessment of portable continuous wave Doppler ultrasound (ultrasonic cardiac output monitor) for cardiac output measurements in neonates

Meyer

Todd

Shadboldt

2009

J Paediatrics Child Health

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“…USCOM has been primarily used in intensive care medicine (post‐surgical, post‐myocardial infarction, heart failure and dialysis), 11–15 emergency medicine (triage, sepsis, haemorrhage, resuscitation, heart failure and hypertension, and retrieval), 16–19 paediatrics and neonatology 20–22 . Other applications included electrophyiosology (optimization of pacemaker timings), 23 and animal research 8 .…”

Section: Introductionmentioning

confidence: 99%

“…10 USCOM has been primarily used in intensive care medicine (post-surgical, post-myocardial infarction, heart failure and dialysis), [11][12][13][14][15] emergency medicine (triage, sepsis, haemorrhage, resuscitation, heart failure and hypertension, and retrieval), [16][17][18][19] paediatrics and neonatology. [20][21][22] Other applications included electrophyiosology (optimization of pacemaker timings), 23 and animal research. 8 Unfortunately, in most of these trials, the USCOM technique was not compared with another modality of measuring CO (invasive or non-invasive).…”

Section: Introductionmentioning

confidence: 99%

Review article: Non‐invasive assessment of cardiac output with portable continuous‐wave Doppler ultrasound

Meyer

Todd

Wright

et al. 2008

Emerg Medicine Australasia

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Cardiac output is considered an important parameter when assessing the cardiovascular status of a critically ill patient. Both non-invasive (e.g. bioimpedance, echocardiography) and invasive methods (Swan Ganz catheter) have been used to measure cardiac output. The ultrasonic cardiac output monitoring device provides a new method of non-invasively assessing cardiac output in various clinical settings. The ultrasonic cardiac output monitoring device was introduced clinically in 2001, and appears to be a promising adjunct in the assessment of the cardiovascular state in a variety of patient cohorts. In this short review article, we will introduce this new technique, discuss the required skills and compare it with methods already in use. In particular, a critical comparison with the 'gold standard', the invasive measurement of cardiac output with the pulmonary artery catheter, will be given.

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Clinical Utility of Cw Doppler Ultrasound for Measuring Cardiac Output (Uscom)

Cited by 2 publications

References 0 publications

Assessment of portable continuous wave Doppler ultrasound (ultrasonic cardiac output monitor) for cardiac output measurements in neonates

Assessment of portable continuous wave Doppler ultrasound (ultrasonic cardiac output monitor) for cardiac output measurements in neonates

Review article: Non‐invasive assessment of cardiac output with portable continuous‐wave Doppler ultrasound

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