Comparison of transthoracic electrical impedance and thermodilution methods for measuring cardiac output

Donovan, Karl D.; Dobb, Geoffrey; Woods, W. D.; Hockings, B

doi:10.1097/00003246-198612000-00009

Cited by 87 publications

(24 citation statements)

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“…This was also advocated by Kobayashi et alP 2] in normal healthy subjects during exercise, and by Costeloe et alP 3] in babies during the neonatal period. In 1981 however, Quail et alP 5] claimed, based on in vitro and in vivo investigations, that p might be considered virtually constant at a value of 135 Q • cm. More research is needed on this subject.…”

Section: Stroke Volume Equationsmentioning

confidence: 99%

The technique of impedance cardiography

Woltjer¹,

Bogaard²,

Vries³

1997

European Heart Journal

104

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Section: Stroke Volume Equationsmentioning

confidence: 99%

The technique of impedance cardiography

Woltjer¹,

Bogaard²,

Vries³

1997

European Heart Journal

104

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“…The accuracy as compared with invasive methods, such as that of Fick [26], TD [27], and dye dilution [28], and the reproducibility [29,30] were proved in many studies on spontaneously breathing pa tients, but the influence of mechanical ventilation is still a matter of debate. Donovan et al [31] found a lower correlation (r = 0.59) for mechanically ventilated pa tients as compared with spontaneously breathing pa tients (r = 0.70), and Preiser et al [32] consider it a lim itation for the impedance method, but these authors compared only 16 pairs of measurements between TD and TEB in 8 patients. The TD measurements (3)(4)(5) were cycled with the respirator, resulting in a continuous overestimation, and the TEB data were averaged over a whole 1-min period.…”

Section: Discussionmentioning

confidence: 99%

Influence of the Ventilatory Cycle on Cardiac Output Determination during Mechanical Ventilation

Castor¹,

Helms²,

Niedermark³

et al. 1991

Am J Noninvas Cardiol

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The effects of different conditions during mechanical ventilation on the accuracy of thoracic electrical bioimpedance compared to the standard thermodilution method were evaluated in 12 adult men and women undergoing neurosurgical removal of intracranial tumors or aneurysms. Measurements were made (1) at fixed points of the ventilatory cycle and (2) spread over the entire ventilatory cycle with a low respiratory rate and a high tidal volume and with a high respiratory rate and low tidal volume. There was no significant difference in cardiac output measurements for all conditions (total(TD) = 3.72 liters/min and total(TEB) = 3.69 liters/min with a mean difference of 0.85% for all conditions). In conclusion, thoracic electrical bioimpedance is an appropriate method for measuring cardiac output during different conditions of mechanical ventilation.

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“…In conclusion, although bioimpedance is interesting under stable physiological conditions, it seems ill-suited for hemodynamically unstable ICU patients [106,107].…”

Section: Thoracic Bioimpedancementioning

confidence: 99%

Monitoring of Cardiac Output and Its Derivatives

Giraud

Bendjelid

2016

Hemodynamic Monitoring in the ICU

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The classical pulmonary artery catheter, also called the Swan-Ganz catheter, is a hemodynamic monitoring tool still in use in the ICU. Over the last 15 years, less invasive techniques have been developed, resulting in reduced use of this catheter. In addition, a meta-analysis on the influence of this catheter on the survival of ICU patients showed no benefit in terms of mortality rates [1,2]. However, it is important to understand what information can be obtained using the present catheter. Here, the authors present the data that can be obtained through the pulmonary artery catheter and the resulting calculations: intravascular pressure, cardiac output (by the thermodilution technique), and mixed venous oxygen saturation levels.

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Comparison of transthoracic electrical impedance and thermodilution methods for measuring cardiac output

Cited by 87 publications

References 0 publications

The technique of impedance cardiography

The technique of impedance cardiography

Influence of the Ventilatory Cycle on Cardiac Output Determination during Mechanical Ventilation

Monitoring of Cardiac Output and Its Derivatives

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