Impedance Cardiography in the Evaluation of Patients with Arterial
            Hypertension

Leão, Rodrigo Nazário; Silva, Pedro Marqués da

doi:10.5935/2359-4802.20180048

Cited by 8 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bioimpedance cardiography was used to obtain non-invasive hemodynamic data. In particular, patients underwent 5-min recordings to obtain heart rate (b/m), stroke volume (SV) (mL), stroke volume index (SVI) (mL·m 2 ), cardiac index (CI) (L/m·m 2 ), systemic vascular resistance index (SVRI) (Dyn.s/cm 2 ·m 2 ), left ventricular end-diastolic volume (LVEDV) (mL), left ventricular end-systolic volume (LVESV = LVEDV-SV) (mL), contractility index (ConI), left ventricular ejection time (LVET) (ms), left cardiac work index (LCWI) (kg.m·m 2 ), early diastolic filling ratio (EDFR), and left ventricular ejection fraction (LVEF Bio ) [ 29 , 30 , 31 , 32 , 33 , 34 , 35 ].…”

Section: Methodsmentioning

confidence: 99%

Electrocardiographic and other Noninvasive Hemodynamic Markers in Decompensated CHF Patients

Piccirillo

Moscucci

Mezzadri

et al. 2023

JCDD

View full text Add to dashboard Cite

Acutely decompensated chronic heart failure (adCHF) is among the most important causes of in-hospital mortality. R-wave peak time (RpT) or delayed intrinsicoid deflection was proposed as a risk marker of sudden cardiac death and heart failure decompensation. Authors want to verify if QR interval or RpT, obtained from 12-lead standard ECG and during 5-min ECG recordings (II lead), could be useful to identify adCHF. At hospital admission, patients underwent 5-min ECG recordings, obtaining mean and standard deviation (SD) of the following ECG intervals: QR, QRS, QT, JT, and T peak–T end (Te). The RpT from a standard ECG was calculated. Patients were grouped by the age-stratified Januzzi NT-proBNP cut-off. A total of 140 patients with suspected adCHF were enrolled: 87 (mean age 83 ± 10, M/F 38/49) with and 53 (mean age: 83 ± 9, M/F: 23/30) without adCHF. V5-, V6- (p < 0.05) RpT, and QRSD, QRSSD, QTSD, JTSD, and TeSDp < 0.001 were significantly higher in the adCHF group. Multivariable logistic regression analysis demonstrated that the mean of QT (p < 0.05) and Te (p < 0.05) were the most reliable markers of in-hospital mortality. V6 RpT was directly related to NT-proBNP (r: 0.26, p < 0.001) and inversely related to a left ventricular ejection fraction (r: 0.38, p < 0.001). The intrinsicoid deflection time (obtained from V5-6 and QRSD) could be used as a possible marker of adCHF.

show abstract

Section: Methodsmentioning

confidence: 99%

Electrocardiographic and other Noninvasive Hemodynamic Markers in Decompensated CHF Patients

Piccirillo

Moscucci

Mezzadri

et al. 2023

JCDD

View full text Add to dashboard Cite

show abstract

“…This review is based on the following sources-Google Scholar, PubMed, Scopus, Science Direct and includes works published in English with focus on BIA and hemodynamic monitoring. While previously published reviews (Lorenzo et al 1997, Brown 2001, Bayford 2006, Jaffrin and Morel 2008, Marik 2013, Bera 2014, Joosten et al 2017, Leão et al 2019, Naranjo-Hernández et al 2019, Ward 2019) are acknowledged, this work presents a perspective of implementing BIA technology towards hemodynamic monitoring with regards to the current implementation and challenges. For this, the rest of this paper has been organized into three more sections.…”

Section: Bioimpedance Analysismentioning

confidence: 99%

Bioimpedance analysis as a tool for hemodynamic monitoring: overview, methods and challenges

Anand

Lowe

et al. 2021

Physiol. Meas.

View full text Add to dashboard Cite

Recent advances in hemodynamic monitoring have seen the advent of non-invasive methods which offer ease of application and improve patient comfort. Bioimpedance Analysis or BIA is one of the currently employed non-invasive techniques for hemodynamic monitoring. Impedance Cardiography (ICG), one of the implementations of BIA, is widely used as a non-invasive procedure for estimating hemodynamic parameters such as stroke volume (SV) and cardiac output (CO). Even though BIA is not a new diagnostic technique, it has failed to gain consensus as a reliable measure of hemodynamic parameters. Several devices have emerged for estimating CO using ICG which are based on evolving methodologies and techniques to calculate SV. However, the calculations are generally dependent on the electrode configurations (whole body, segmental or localised) as well as the accuracy of different techniques in tracking blood flow changes. Blood volume changes, concentration of red blood cells, pulsatile velocity profile and ambient temperature contribute to the overall conductivity of blood and hence its impedance response during flow. There is a growing interest in investigating limbs for localised BIA to estimate hemodynamic parameters such as pulse wave velocity. As such, this paper summarises the current state of hemodynamic monitoring through BIA in terms of different configurations and devices in the market. The conductivity of blood flow has been emphasized with contributions from both volume and velocity changes during flow. Recommendations for using BIA in hemodynamic monitoring have been mentioned highlighting the suitable range of frequencies (1 kHz–1 MHz) as well as safety considerations for a BIA setup. Finally, current challenges in using BIA such as geometry assumption and inaccuracies have been discussed while mentioning potential advantages of a multi-frequency analysis to cover all the major contributors to blood’s impedance response during flow.

show abstract

“… 15 No entanto, respostas de aceleração e desaceleração do DC, da FC e do VS ao TC6M ainda precisam ser demonstradas em indivíduos com ICFEr; essas variáveis podem representar desequilíbrios autonômicos no esforço e na recuperação. 7 , 11 Assim, este estudo teve como objetivo avaliar as respostas de aceleração e desaceleração do DC, da FC e do VS ao TC6M em pacientes com ICFEr e em controles sadios. Nosso objetivo secundário foi avaliar o comportamento hemodinâmico (pelo DC, FC, VS e IC) antes, durante e após o TC6M, que ainda não foi descrito na literatura.…”

Section: Introductionunclassified

“…Clinical researchers can use it to assess both healthy individuals and those with conditions such as HFrEF during 6MWT, adding different information about health conditions. 7 - 10 The literature has shown that a commercially available SM-ICG device (PhysioFlow ® ) can accurately assess peak CO (when compared to Fick’s and thermodilution methods) both at rest and during exercise. 11 - 13 Furthermore, SM-ICG can add predictive information on peak oxygen consumption (VO 2 peak) with a strong correlation between measured and predicted VO 2 peak (r = 0.931, p<0.001) by values obtained during 6MWT for CO, SV, and HR.…”

Section: Introductionmentioning

confidence: 99%

Avaliação Cardiodinâmica Não Invasiva por Cardiografia de Impedância durante o Teste de Caminhada de Seis Minutos em Pacientes com Insuficiência Cardíaca

Franzoni,

Oliveira,

Busin

et al. 2023

Arquivos Brasileiros De Cardiologia

View full text Add to dashboard Cite

show abstract

Impedance Cardiography in the Evaluation of Patients with Arterial Hypertension

Cited by 8 publications

References 0 publications

Electrocardiographic and other Noninvasive Hemodynamic Markers in Decompensated CHF Patients

Electrocardiographic and other Noninvasive Hemodynamic Markers in Decompensated CHF Patients

Bioimpedance analysis as a tool for hemodynamic monitoring: overview, methods and challenges

Avaliação Cardiodinâmica Não Invasiva por Cardiografia de Impedância durante o Teste de Caminhada de Seis Minutos em Pacientes com Insuficiência Cardíaca

Contact Info

Product

Resources

About