…50% or more in any potential infarct related artery. MINOCA is not a definitive disease diagnosis. It is a descriptive and provisional classification that should…
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…50% or more in any potential infarct related artery. MINOCA is not a definitive disease diagnosis. It is a descriptive and provisional classification that should…
…the deviation of the electrical axis. The QRS duration is slightly prolonged but does not reach 0.12 s. Block in the anterior fascicle causes…
…suggests that ischemia occurs as soon as oxygen supply exceeds oxygen demands. In spite of its spread in textbooks, this theory has not been proven…
…the blood supply is good and a scar is stigmatising — up to about 24 hours is accepted in Swedish practice. The limit is not the…
…between myocardial oxygen supply and demand, which is not related to acute coronary atherothrombosis. By definition, acute atherothrombotic plaque disruption is not a feature of…
…and/or the coronary microcirculation. These abnormalities may produce a transient mismatch between myocardial oxygen demand and coronary blood supply, resulting in myocardial hypoperfusion or…
…infarction. The degree of troponin elevation does not by itself establish the mechanism. Increased concentrations may result from acute coronary atherothrombosis, oxygen supply–demand imbalance…
…ischemic zone is not restored before that time limit, the cell will die. Figure 1. Myocardial cells require a continuous oxygen supply in order to…
…in its final third. The right bundle branch does not give off any Purkinje fibers during its course through the interventricular septum. It starts to…
…easy to compress, with a dual collateral supply to the hand through the palmar arches and the lowest complication rate. The femoral artery is the…
…assessment [1]. Treat immediately when there are symptoms and a low glucose. Do not wait for the venous laboratory result. 1. Assess and stabilise the…
…UA presents with compatible ischaemic symptoms but without cardiac specific troponin elevation above the 99th percentile. The clinical presentation should not be interpreted in isolation…
…segment depression, reflecting an abnormal repolarization response to exercise induced myocardial oxygen supply–demand imbalance. The exercise response is not confined to the ECG. Ischaemia…
…reserve (FFR) is an invasive, lesion specific physiological index used to estimate the functional significance of an epicardial coronary stenosis. It is defined during maximal…
…pulmonary pressure, or haemodynamics Stress imaging is not recommended in patients undergoing urgent non cardiac surgery or those with an unstable clinical condition. In patients…
…injury. Myocardial injury Myocardial injury is defined by at least one cardiac troponin (cTn) concentration above the assay specific 99th percentile upper reference limit (URL)…
…Thus, an individual plaque’s morphology does not reliably establish that it will cause an acute event. A more clinically useful model considers both the…
…flow. These imaging modalities are highly sensitive and specific in evaluating perfusion and also play a role in determining the viability of compromised myocardial tissue…
…oxygen supply. The myocardium is capable of upregulating or downregulating metabolism (i.e contractility) according to oxygen supplies. Consequently, reduced oxygen supply would not result…
…is greater for the posteromedial papillary muscle, which only receives blood supply from one coronary artery (Coronary arteries). Chronic myocardial ischemia may also lead to…
…receives blood supply from the left anterior descending artery (LAD) and the left circumflex artery (LCX), whereas the posteromedial papillary muscle receives blood supply from…
…the plaque through the disrupted surface. Type 2 MI: Attributed to an imbalance between myocardial oxygen supply and demand, without the presence of acute atherothrombosis…
…also important to study, as it shows the arterial supply of the conduction system. Figure 2. The arterial supply of the conduction system. As seen…
…Arteries to the posterior wall (these arteries branch of after the right marginal artery) may be given off by the RCA (and otherwise the LCx)…