…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…

…ordinary triple lumen catheter). Measurement of central venous pressure and central venous oxygen saturation. Repeated blood sampling during intensive care. Exhausted peripheral venous access during…

…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 …

…such as calculation of stroke volume. Stroke volume (SV), cardiac output (CO) and cardiac index (CI) Stroke volume is the amount of blood ejected into…

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

…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…

…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…

…and abdominal bruits; bilateral brachial blood pressure measurement; cardiac auscultation; inspection of the legs and feet. A systolic blood pressure difference between the arms exceeding…

…tissue requirements unless filling pressures are elevated. The syndrome is therefore defined by symptoms and signs of congestion or impaired cardiac performance rather than by…

…offers greater precision in the calculation of ejection fraction, and 3D measurements will presumably replace 2D measurements in the future. Cardiac MRI (magnetic resonance imaging…

…the catabolic state of advanced HF (cardiac cachexia) rather than a protective effect of adiposity. Etiology and underlying causes The etiology of HFrEF is broadly…

…measurements become interpretable only when related to one another. A low blood pressure may be due to low flow, low vascular tone or both, and…

…risk features of acute coronary syndrome. The physical examination should include: Assessment of all major peripheral pulses. Blood pressure measurement in both arms. Cardiac auscultation…

…focused on measurements of blood flow. However, the Doppler effect can also be used to study myocardial motion. Myocardial motion during systole and diastole alter…

…chance of success by counteracting vascular spasm. Pressure monitoring set: stiff, short tubing, a transducer, and a flush system with physiological saline in a pressure…

…the QT interval decreases and vice versa. The physiological purpose of this phenomenon is to allow for faster cardiac cycles during tachycardia (e.g during…

…and bipolar leads are not recommended because all ECG leads are bipolar, since they compare electrical currents in two measurement points. The electrophysiological basis of…

ECG Introduction to ECG interpretation Lathundar The Cardiac Electrical Axis: Definition, Clinical Implications, and Deviations Definition and Mechanism of the Electrical Axis The heart's…

…detect elevated levels of myocardial proteins in blood within 2 to 3 hours after the onset of myocardial infarction. Cardiac troponin T and troponin I…

…catheterization. This section discusses hemodynamic principles and how these can be leveraged to calculate stroke volume, cardiac output, pressure conditions, severity of stenoses and regurgitations…

…propelled by breakthroughs in engineering, software development, and progress in our understanding of the pathophysiology of cardiac disease. Ultrasound systems have become cheaper, more portable…

…Functional assessment with pressure or flow measurements, intravascular imaging, or fractional flow reserve derived from computed tomography can refine interpretation. Coronary plaque and future events…

…to the manufacturers' standard measurements. Blood and colloids flow more slowly, and every additional length of tubing, every tap and every filter reduces the flow…

…in isolation. The initial diagnosis and triage depend on integration of symptoms, vital signs, the ECG, and serial cardiac troponin measurements. Evaluation and physical examin

…one cardiac troponin value above the assay specific 99th percentile upper reference limit. It is classified as acute when serial measurements demonstrate a rise and…

…low to intermediate likelihood of CAD when cardiac troponin and/or the ECG is normal or inconclusive. The principal diagnostic strength of CCTA is its…

…and evidence of hypotension Clinical evidence of low cardiac output or shock RVI may produce severe venous congestion even when the left sided filling pressure…

…injury beyond its effects on blood pressure and potassium balance. The principal sporadic subtypes are: Aldosterone producing adrenal adenoma Bilateral adrenal hyperplasia Primary or unilateral…

…blood pressure Other cardiovascular risk factors and relevant comorbidities Evidence of hypertension mediated organ damage Existing cardiac, cerebrovascular, or renal disease The possibility of a…

…complementary functional and structural information. Coronary pressure measurements permit assessment of the physiological significance of selected stenoses using fractional flow reserve (FFR) and instantaneous wave…

…of mitral stenosis Mitral stenosis hinders atrial emptying. This results in an increase in left atrial pressure (LAP), which gradually leads to atrial hypertrophy and…

…office pressure below the hypertension threshold but hypertensive home or ambulatory pressure. Office measurements provide only a limited representation of usual blood pressure and may…

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

…changes in intraluminal pressure. Coronary blood flow is also influenced by sympathetic and parasympathetic influences; sympathetic stimulation leads to vasoconstriction through the release of norepinephrine…

…Overview of the normal electrocardiogram (ECG / EKG) Figure 1. The classical ECG curve with its most common waveforms. Important intervals and points of measurement are…

…lead to substantial underestimation of cardiovascular risk. Conversely, Lp(a) measurement provides limited additional reclassification beyond currently recommended global risk scores, and its interpretation should…

…to calculate; if the left ventricle contains 100 ml of blood at the end of diastole and 40 ml is pumped out during systole, then…

…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…

…overview of the waves and intervals is given. Figure 1. The classical ECG curve with its most common waveforms. Important intervals and points of measurement…

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

[calc_aorta] Sinus of Valsalva (SOV) and Aortic Root Assessment The sinus of Valsalva diameter (SOVd) is a critical measurement in evaluating aortic root morphology…

…and preferably confirmation by home measurement or 24 hour recording — the thresholds for which are lower than for office measurement. Classification of office blood pressure…

…test. Preparation and equipment Cycle ergometer with a braked, workload controlled resistance; 12 lead ECG with continuous recording; automated or manual blood pressure measurement. Resuscitation…

…in several views in order to assess the reliability and reproducibility of the measurements. The parasternal and apical windows are obtained with the patient positioned…

…guided without reliable measurement of urine output. Baseline tests: blood gas with electrolytes, sodium, potassium, ionised calcium, creatinine, CK in rhabdomyolysis, and salicylate concentration in…

…rib and the iliac crest, at the end of expiration, with the tape horizontal and without compressing the skin. Ratios and other measurements Measurement Calculation…

…has become very low [4]. Sampling and measurement error A capillary glucose is sufficient to start emergency treatment, but abnormal or unexpected values should be…

…of pulmonary involvement in systemic disease, for example rheumatoid arthritis or scleroderma, and during treatment with pulmonary toxic drugs. Contraindications Forced expiration raises the pressure…

…the vulnerability caused by marked local differences in repolarization. This article is part of the comprehensive chapter: How to read and interpret the normal ECG

…types of heart failure: HFPEF , HFmrEF and HFREF . This classification is based primarily on the measurement of left ventricular ejection fraction (LVEF). The majority of…

…types of heart failure: HFPEF , HFmrEF and HFREF . This classification is based primarily on the measurement of left ventricular ejection fraction (LVEF). The majority of…

…between sending and analyzing ultrasound. Therefore, emitted sound waves can be associated with reflected sound waves, making it possible to determine the distance of the…

…Assessment of treatment response and measurement of residual disease (MRD). Fever of unknown origin or suspected granulomatous disease with marrow involvement. Work up of unexplained…

…daytime and 7 night time values, and with a measurement interval of no more than 30 minutes throughout the 24 hours. Phenotype Office blood pressure…

…an intensive care unit, a coronary care unit or another setting that allows frequent blood pressure measurement and continuous monitoring. An arterial line is often…

…and in patients with diabetes or renal failure the index may be falsely normal because of medial sclerosis — in that case add toe pressure measurement…

…access, but do not let blood sampling or cannulation delay inhaled treatment. 8. Reassess speech, work of breathing, level of consciousness and air entry repeatedly…

…therefore underestimate the ketosis early on and remain positive after the clinically relevant ketosis has resolved. Capillary measurement of beta hydroxybutyrate has high diagnostic accuracy…

…Meningeal carcinomatosis and CNS involvement in haematological malignancy. Investigation of dementia with biomarkers (amyloid, tau, phospho tau). Measurement of the opening pressure in suspected idiopathic…

…Instillation therapy and contrast studies of the urinary tract. Wound healing with a sacral pressure sore or extensive perineal wounds where urinary leakage prevents healing…