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Arterial Hypertension: Definition, Diagnosis and Out-of-Office Measurement

…the maximum arterial pulsatile pressure during systole. With auscultatory measurement, it corresponds to the appearance of the first Korotkoff sound. Diastolic blood pressure: the minimum…

Capnography (end-tidal carbon dioxide measurement, ETCO2) during cardiac arrest

…Capnography refers to the measurement of end tidal carbon dioxide (ETCO 2 ) in the respiratory system. ETCO 2 is the partial pressure of carbon dioxide …

Assessment of diastolic function by echocardiography

…using pulsed Doppler. Estimating left ventricular filling pressure via e' . Measurement of deceleration time (DT) . Diastolic function can be estimated from E/A ratio, e'…

Principles of myocardial perfusion imaging (SPECT, PET), coronary blood flow and flow reserve (CFR)

…employed to evaluate myocardial perfusion by measuring the intensity of their uptake within the myocardium. Furthermore, certain radiotracers enable direct measurement of coronary blood flow…

Overview of the ECG Waves, Deflections, Intervals, Durations

…with its most common waveforms. Important intervals and points of measurement are depicted. ECG interpretation requires knowledge of these waves and intervals. The P wave…

Lipoprotein(a): Measurement and Clinical Implications

…high Lp(a) level may lead to substantial underestimation of cardiovascular risk. Conversely, Lp(a) measurement provides limited additional reclassification beyond currently recommended global risk…

Ejection fraction (EF): Physiology, Measurement & Clinical Evaluation

…Ejection fraction is routinely examined at rest, which does not reveal the functional (maximum) capacity of the left ventricle, as this would require measuring the…

Fractional shortening for estimation of ejection fraction

…25% Normal FS, 2D measurement 18% Advantages of fractional shortening If ventricular geometry is normal and there are no regional wall motion abnormalities, then fractional…

ECG interpretation: Characteristics of the normal ECG (P-wave, QRS complex, ST segment, T-wave)

…with its most common waveforms. Important intervals and points of measurement are depicted. ECG interpretation requires knowledge of these waves and intervals. The P wave…

The Bernoulli principle and estimation of pressure gradients

…is highly dependent on the precision of the Doppler measurement. The Doppler beam must be parallel to the direction of the blood flow (refer to…

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