Non-invasive hemodynamic evaluation by Doppler echocardiography

Abstract

The approach for treating a hemodynamically unstable patient remains a diagnostic and therapeutic challenge. Stabilization of the patient should be rapid and effective, but there is not much room for error. This narrow window of intervention makes it necessary to use rapid and accurate hemodynamic evaluation methods. Echocardiography is the method of choice for the bedside evaluation of patients in circulatory shock. In fact, it was intensive care physicians who recognized the potential of Doppler echocardiography for the initial approach to patients in circulatory failure. An echocardiogram allows rapid anatomical and functional cardiac evaluation, which may include non-invasive hemodynamic evaluation using a Doppler study. Such an integrated study may provide data of extreme importance for understanding the mechanisms underlying the hemodynamic instability of the patient to allow the rapid institution of appropriate therapeutic measures. In the present article, we describe the most relevant echocardiographic findings using a practical approach for critical patients with hemodynamic instability.

Integration of multiple imaging platforms to uncover cardiovascular defects in adult zebrafish

“…Echocardiography, the fastest (approximately 5 minutes per animal) and least invasive imaging technique, records haemodynamic parameters in live animals. 82–85 We analysed cardiac function from sagittal views of the heart ( Supplementary material online , Figure S2A ), and through Doppler echocardiography were able to assess a range of features including the direction, amount, and velocity of blood flow ( Figure 2A–D and Supplementary material online , Figure S2B–K , Table 5 ). Due to the intrinsic variability between individuals, the heart rate ranged from 58 to 143 beats per minute (bpm), with no statistically significant difference between the two genotypes ( Figure 2A ).…”

Integration of multiple imaging platforms to uncover cardiac defects in adult zebrafish

“…Echocardiography, the fastest (approximately 5 minutes per fish) and least invasive imaging technique, records hemodynamic parameters in live animals (Scherrer-Crosbie et al, 2008;Moran et al, 2013;Gaspar et al, 2018;Wang et al, 2018). We analyzed cardiac function from sagittal views of the heart ( Table 3).…”

Tradução, Adaptação E Validação Da Escala Full Outline of Unresponsiveness Para O Português Do Brasil

“…Considera-se um paciente em estado grave quando há risco iminente de perder a vida ou deterioração fisiológica de órgãos e sistemas, decorrente de trauma ou outras doenças, ainda, pela presença de um estado hemodinâmico instável, possibilidade de choque circulatório, ou compensação hemodinâmica por meio de doses crescentes e altas de drogas vasoativas ou outras formas de suporte cardiovascular 2 .…”