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

…ECMO) initiation ( Soar et al ). ETCO 2 trends can vary during CPR depending on various factors such as the cause of cardiac arrest, compression efficacy…

Stroke Volume, VTI (Velocity Time Integral) & Cardiac Output

…product of stroke volume and heart rate: CO = SV • HR CO = cardiac output; SV = stroke volume; HR = heart rate. Cardiac Index…

Heart Failure With Preserved Ejection Fraction: Diagnosis and Treatment

…a rate appropriate to tissue requirements unless filling pressures are elevated. The syndrome is therefore defined by symptoms and signs of congestion or impaired cardiac…

Circulatory and haemodynamic parameters

…Mean arterial pressure (MAP) = diastolic + (systolic − diastolic)/3 Cardiac output = stroke volume × heart rate SVR = 80 × (MAP − CVP) / CO PVR = 80…

High-Sensitivity Troponin: 0/1-Hour Rule-In and Rule-Out Algorithms

…12 lead ECG Initial hs cTn measurement Continuous cardiac monitoring The source material does not provide a detailed list of physical examination findings or a…

Assessing left ventricular systolic function

…measurement of the diameter. Cardiac output (CO) Cardiac output is the product of stroke volume (SV) and heart rate (HR). CO = HR · SV Cardiac…

Heart Failure with Reduced Ejection Fraction (HFrEF)

…with a subsequent measurement of 40% [14] . This distinction is paramount for practicing cardiologists: HFimpEF represents a state of myocardial remission rather than true recovery…

Long QT (QTc) interval, long QT syndrome (LQTS) & torsades de pointes

…rate. As the heart rate increases, the QT interval decreases and vice versa. The physiological purpose of this phenomenon is to allow for faster cardiac…

Arterial line

…whom non invasive measurement is unreliable: marked obesity, pronounced vasoconstriction, arrhythmia, intra aortic balloon pump. Assessment of stroke volume variation as part of fluid management…

Principles and Preparations for Echocardiographic Examinations

…imaging. Some measurements are still done using M mode echocardiography. A formal consensus regarding the components of the standard study has not been established, although…

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