Cardiac Output Monitoring During the Acute Phase of Myocardial Infarction: Accuracy and Precision of the Thermodilution Method

Vandermoten, P; Bernard, Roland; Hemptinne, J. de; Gillet, J. M.; Lenaers, André

doi:10.1159/000169862

Cited by 12 publications

(1 citation statement)

References 6 publications

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“…Os estudos mostram variações entre as medidas realizadas por diferentes observadores. Assim, nossas medidas restringiram-se ao mesmo observador por paciente [18][19] . As medidas foram realizadas em pacientes internados na unidade de terapia intensiva e durante o intra-operatório, com diversos quadros clínicos com a finalidade de diminuir a interferência da doença, já que no mesmo paciente eram utilizados os dois métodos.…”

Section: Discussionunclassified

Comparação dos valores de débito cardíaco obtidos por termodiluição e dopplerfluxometria transesofágica

Ferreira

Amaral

Valiatti

2007

Rev. Assoc. Med. Bras.

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INTRODUÇÃOEntre os vários métodos disponíveis para a monitoração do débito cardíaco (DC) de pacientes submetidos a procedimentos cirúrgicos ou internados em unidades de terapia intensiva 1-2 , tem encontrado aceitação universal a termodiluição (TD), considerada gold standard na monitoração hemodinâmica [3][4] . Na última década, diversos estudos foram realizados com o objetivo de encontrar métodos simples e pouco invasivos, que permitam determinar com precisão o débito cardíaco 1,5-6 . Surge assim a dopplerfluxometria esofágica (DTE) [7][8][9][10][11][12][13] . Este método, introduzido recentemente na prática clínica, utiliza o princípio Doppler para a medida de fluxo na aorta torácica, de onde são calculados os demais parâmetros hemodinâmicos. A DTE é consideravelmente menos invasiva que a TD, reveste-se de grande simplicidade e, portanto, facilmente realizada em diferentes ambientes hospitalares.

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Section: Discussionunclassified

Comparação dos valores de débito cardíaco obtidos por termodiluição e dopplerfluxometria transesofágica

Ferreira

Amaral

Valiatti

2007

Rev. Assoc. Med. Bras.

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Comparison of iced and room temperature injectate for thermodilution cardiac output

Bourdillon

Fineberg

1989

Cathet. Cardiovasc. Diagn.

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Cardiac output estimation by thermodilution is carried out using room temperature or iced injectate, but the accuracy and variability of the two methods is not well documented. Room temperature and iced injectate were compared in 21 patients undergoing diagnostic cardiac catheterization. Dextrose injectate (10 ml) was administered in prefilled syringes left to stand either in iced water or in room air. Four injections were made sequentially with room temperature and iced injectate. Cardiac output by room temperature and iced injectate were not significantly different (4.70 +/- 1.22 for room temperature and 4.90 +/- 1.37 for iced injectate, n = 21, P = 0.155). There was a significant difference in the variance of the estimations by the two methods (room temperature = 0.296, iced = 0.120, P less than 0.005). From this variance the calculated number of measurements needed to estimate cardiac output to +/- 0.5 L/min with 95% confidence is seven for room temperature and four for iced injectate. For five patients with cardiac output less than 4.00 L/min with room temperature injectate, cardiac output with iced injectate was significantly higher (3.33 +/- 0.34 for room temperature vs. 3.69 +/- 0.49 for iced injectate, P = 0.05). Thus room temperature injectate generally gives a satisfactory cardiac output estimation but with significantly greater variability than iced injectate. Sample size for accurate cardiac output estimation must be greater with room temperature injectate. Iced injectate may over-estimate output when cardiac output is low.

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The pulmonary artery pulsatility index identifies severe right ventricular dysfunction in acute inferior myocardial infarction

Korabathina

Heffernan

Paruchuri

et al. 2012

Cathet Cardio Intervent

191

110

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Cardiac Output Monitoring During the Acute Phase of Myocardial Infarction: Accuracy and Precision of the Thermodilution Method

Cited by 12 publications

References 6 publications

Comparação dos valores de débito cardíaco obtidos por termodiluição e dopplerfluxometria transesofágica

Comparação dos valores de débito cardíaco obtidos por termodiluição e dopplerfluxometria transesofágica

Comparison of iced and room temperature injectate for thermodilution cardiac output

The pulmonary artery pulsatility index identifies severe right ventricular dysfunction in acute inferior myocardial infarction

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