نتایج جستجو برای: impedance cardiography
تعداد نتایج: 36187 فیلتر نتایج به سال:
The impedance cardiography (ICG) shows the caused in heart. ICG gives a clear and accurate results applied techniques reduce artifacts also mathematical calculations. signal various physiological non-physiological situations, can calculate heart volume. computational complexity is main part for remote health care. adaptive used this project reduces or removes noise signal, Improve signal. Mainl...
Spinal cord injured (SCI) individuals show an altered hemodynamic response to metaboreflex activation due to a reduced capacity to vasoconstrict the venous and arterial vessels below the level of the lesion. Exercise training was found to enhance circulating catecholamines and to improve cardiac preload and venous tone in response to exercise in SCI subjects. Therefore, training would result in...
OBJECTIVE The aim of this study is to assess the association between genetic ancestry, self-declared race and haemodynamic parameters in patients with chronic heart failure (HF). METHODS Observational, cross-sectional study. Eligible participants were aged between 18 and 80 years; ejection fraction was ≤50%. Patients underwent genetic analysis of ancestry informative markers, echocardiography...
We present a case of successful peritoneal ultrafiltration (pUF) treatment in a 60 year-old patient diagnosed with diuretic-resistant congestive heart failure fulfilling the criteria for type 2 cardio-renal syndrome. Six months of pUF treatment with one daily dialysis exchange with icodextrin as an osmotic agent resulted in better functional status (from IV to II/III NYHA class), quality of lif...
BACKGROUND The pre-ejection period (PEP) and left ventricular ejection time (LVET) are easily measured by impedance cardiography (ICG). We hypothesized that the PEP/LVET measured by ICG would correlate with that measured by echocardiography, and that PEP/LVET measured by ICG would be useful for cardiac resynchronization therapy (CRT) optimization. METHODS Newly CRT implanted patients were opt...
We investigated the system identification approach for potentially improved estimation of pulse transit time (PTT), a popular arterial stiffness marker. In this approach, proximal and distal arterial waveforms are measured and respectively regarded as the input and output of a system. Next, the system impulse response is identified from all samples of the measured input and output. Finally, the...
OBJECTIVE Cardiovascular response to passive leg raising (PLR) is useful in assessing preload reserve, but it has not been studied longitudinally during pregnancy. We aimed to investigate gestational age associated serial changes in maternal functional hemodynamics and establish longitudinal reference ranges for the second half of pregnancy. MATERIALS AND METHODS This was a prospective longit...
OBJECTIVES This study sought to assess the potential utility of impedance cardiography (ICG) in predicting clinical deterioration in ambulatory patients with heart failure (HF). BACKGROUND Impedance cardiography uses changes in thoracic electrical impedance to estimate hemodynamic variables, but its ability to predict clinical events has not been evaluated. METHODS We prospectively evaluate...
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