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

…decreases and vice versa. The physiological purpose of this phenomenon is to allow for faster cardiac cycles during tachycardia (e.g during physical exertion). Therefore…

Coronary Anatomy and Segmental Classification for the Clinician

…identification of focal severe stenoses. Coronary anomalies Coronary artery anomalies are uncommon among the general population but account for a substantial proportion of sudden cardiac…

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

…the diameter is greatest (usually halfway through systole). Zoom in LVOT to improve the accuracy of the measurement. Flow velocity in LVOT : Velocity is measured…

Targeted temperature management after cardiac arrest

…null The current ERC and ESICM recommendation is continuous core temperature measurement and the active prevention of fever — defined as a temperature above about 37…

Central venous catheter

…dialysis catheter, not an ordinary triple lumen catheter). Measurement of central venous pressure and central venous oxygen saturation. Repeated blood sampling during intensive care. Exhausted…

🟠 Calculating Shunt Fraction (Qp/Qs) Using Echocardiography

…the ratio of pulmonary blood flow (Qp) to systemic blood flow (Qs). This measurement is pivotal in diagnosing and managing congenital or acquired cardiac shunts…

Heart Failure With Mildly Reduced Ejection Fraction

…functional cardiac abnormality or raised natriuretic peptides is not mandatory for HFmrEF when the diagnosis of heart failure is clinically secure and the LVEF measurement…

Carotid Artery Disease: Screening, Medical Therapy and Revascularisation

…should include: palpation of peripheral pulses; auscultation for carotid, femoral, and abdominal bruits; bilateral brachial blood pressure measurement; cardiac auscultation; inspection of the legs and…

Heart Failure With Preserved Ejection Fraction: Diagnosis and Treatment

…are elevated. The syndrome is therefore defined by symptoms and signs of congestion or impaired cardiac performance rather than by ejection fraction alone. Heart failure…

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