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

…category of elevated blood pressure, defined as office SBP 120–139 mmHg or DBP 70–89 mmHg. This distinction supports a risk based approach because…

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

…across the mitral valve using pulsed Doppler. Estimating left ventricular filling pressure via e' . Measurement of deceleration time (DT) . Diastolic function can be estimated from…

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

…rate response, blood pressure changes, ECG changes, arrhythmias, and exercise (functional) capacity. Functional capacity is a strong predictor of both cardiovascular and overall mortality, offering…

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

…The Bernoulli principle and pressure gradients using Doppler measurements Continuous wave Doppler and pulsed wave Doppler can measure the velocity of erythrocytes as they travel…

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