…some patients present with severe LMCA stenosis exacerbated by other conditions, and these must also be recognized. Prompt identification of LMCA involvement is therefore critical…

…of men display ST segment elevations that are not caused by ischemia and a significant proportion have ST T changes caused by other pathological conditions…

ECG Introduction to ECG interpretation Standard display of ECG leads in the 12 lead ECG Numerous conditions that can be diagnosed using the 12 lead…

…causes of cardiac arrest with a separate category for cardiac etiologies. Cause Definition Medical cause Includes cardiac arrest caused by heart disease, other medical conditions…

…indicative of a noncardiac source [4]. 3. Pneumonia with Pleurisy Pain Characteristics: Pleuritic pain is a common presentation [2]. 4. Other Systemic/Local Causes Conditions…

…potentially indicating microvascular dysfunction or other pathologies. The software allows for detailed regional analysis of myocardial perfusion, highlighting specific segments of the left ventricle that…

…recovery) of the myocardium and T wave changes occur in numerous conditions. T wave changes are frequently misunderstood. The transition from the ST segment to…

…Edinger–Westphal nuclei. Parasympathetic fibers (carried by CN III) then prompt sphincter muscles in the iris to constrict the pupil. Under normal conditions, bright light…

…wide complex tachycardia (WCT) . This initial distinction will guide the rest of the thinking needed to arrive at a final diagnosis. Narrow (normal) QRS complexes…

…conditions demonstrate autosomal dominant transmission, in which an affected heterozygous individual has a 50% risk of transmitting the relevant variant to each child. However, other…

…to conduct a careful investigation as several conditions may affect hemodynamics and the underlying cause is often serious (e. g. malignancy, amyloidosis). In case of…

…and the condition is classified as cardiac tamponade. The classical signs of cardiac tamponade are hypotension, muffled heart sounds and jugular venous distention. Other frequent…

…of angiographic series and up to 5–75% of CT series; other angiographic descriptions report rates of approximately 5–10%, while fewer than 5% of…

…because they tend to accompany each other, the term perimyocarditis is often used. Image by Bruce Blausen, Blausen Gallery 2014. Causes of acute pericarditis/myocarditis…

…different vessel. Choice of site Vessel Advantages Disadvantages : : : Internal jugular vein (right) Best ultrasound conditions, a straight course to the superior vena cava, compressible if…

…Loss of function variants in the LDL receptor gene, LDLR, which account for most cases. Variants in APOB that impair apolipoprotein B binding to the…

…necessary to normalize blood pressure. Management of hypertension requires careful consideration of other cardiovascular risk factors and coexisting conditions. Therapy must be tailored to each…

…only small amounts of ATP and glycogen supplies are limited. In order to reduce oxygen demands, cardiac myocytes stop contracting under anaerobic conditions (i.e…

…examination, other examinations (which are not included in the standard examination), may be warranted. For most pathological conditions, there are specific guidelines (see links below)…

…inflow The echocardiographic counterpart of pulsus paradoxus Contraindications In overt tamponade with shock there are no absolute contraindications other than the conditions in which the…

…0.4 0.8 2.1 Table 1. Survival in out of hospital cardiac arrest due to external causes ( Kitamura et al). References DeBehnke DJ…

…Heart failure, pulmonary oedema and other conditions with a high risk of fluid overload — a relative contraindication requiring invasive monitoring and slower administration. Significant metabolic…

…and infarction ECG Definition and Pathophysiology Acute coronary syndromes (ACS) encompass a spectrum of clinical conditions characterized by a recent change in symptoms or signs…

…features of Brugada syndrome are fairly specific to the disorder, provided that the clinical characteristics are in line with the disorder. There are however other…

…It should be noted that several types of cardiomyopathies ( e.g ischemic cardiomyopathy, tachycardia induced cardiomyopathy, diabetic cardiomyopathy, etc. ) may ultimately lead to ventricular dilation…

…mmHg Uncorrected medical conditions, such as significant anemia, important electrolyte imbalance, and hyperthyroidism Systolic blood pressure <90 mmHg, with increased risk of hypotension in patients…

…unit (CCU), regular wards and rehabilitation facilities. Depending on the cause of the arrest, other units may be critical (e.g. trauma unit). Careful and…

…pathological conditions cause sinus bradycardia. The most important causes are as follows: Myocardial ischemia/infarction – Particularly ischemia or infarction located to the inferior wall of…

…structural heart disease). AVNRT, AVRT (WPW syndrome) and other conditions involving an accessory pathway. Paroxysmal atrial fibrillation in patients with severe symptoms, provided that first…

…and SCORE2 Older Persons (SCORE2 OP) are European risk prediction models designed to estimate 10 year risk of both fatal and non fatal CVD events…

…dangerous differential diagnoses [1,2]. STEMI and other ECG patterns suggesting acute coronary occlusion are time dependent conditions. The decision on immediate reperfusion is based…

…universal definition of MI. Type 1 MI is generally related to an atherothrombotic event, whereas Types 2–5 MI have other mechanisms of myocardial ischaemia…

…loss Polycystic ovary syndrome Functional hypothalamic amenorrhoea Fertility therapy and assisted reproductive technology The extent to which these conditions confer risk independently of conventional factors…

…embolism Mediastinitis (rare condition) In addition to these five conditions, there are numerous other causes of chest pain, but the other causes are either subacute…

…paper speed of 25 mm/s, which is standard in the US and many other countries, a 2:1 block will be difficult to discern…

…nitrogen out of the pleural air and speeds resorption. Other conditions in which high flow oxygen is given irrespective of the saturation according to international…

…and oxygenation Evidence of systemic congestion or acute RV failure Syncope or altered clinical status Comorbid cardiopulmonary disease, active cancer, and other conditions incorporated into…

…Myocardial injury leads to release of cardiac troponin, but troponin elevation is not specific for myocardial infarction. Other conditions may produce cardiomyocyte injury and elevated…

…a long time and be detected randomly when investigating other conditions. More dramatic onset of symptoms can be seen in arrhythmogenic tumors of the myocardium…

…favorable prognosis, as compared with other forms of ventricular tachycardia. Mechanisms of ventricular tachycardia Ventricular tachycardia (VT) may emerge due to increased/abnormal automaticity, re…

…antipsychotics, which mainly affect individual symptoms. Initial management ABCDE and immediate tests Assess the withdrawal and other life threatening conditions at the same time. Sec

…of drug toxicity, such as digitalis excess. Biomarkers and Laboratory Findings The source material does not provide information on biomarkers or laboratory findings specific to…

…mm All patients Other leads Greater than or equal to 1 mm These criteria for the other leads apply in the absence of left ventricular…

…other conditions that affect the ST T segment and it is fundamental to be able to differentiate these. For this purpose it is wise to…

…all other causes have been ruled out. Inappropriate sinus tachycardia is presumably more common than previously thought and the condition may hamper the quality of…

…a patient with known myasthenia responds to further cholinesterase inhibition. The test has a sensitivity of around 60 % and is not specific: motor neurone disease…

…the two conditions in the vast majority of cases: Right ventricular hypertrophy shifts the electrical axis to the right. The terminal portion of the T…

…is characterised by myocyte necrosis and troponin elevation due to mechanisms other than myocardial ischaemia. Acute myocardial injury may arise from conditions such as sepsis…

…is actually expected that these conditions display such secondary ST T changes; the absence of such changes should lead to suspicion of ischemia (if the…

…as the baseline. Several conditions can reduce the ability of the atrioventricular (AV) node to conduct the atrial impulse to the ventricles. As the conductivity…

…of the stent, stent diameter less than 3 mm, long stent length Large thrombotic burdens increase procedural risk because thrombus can fragment, embolize to other…

…are interested in other books and online resources, we have plowed through more than 30 of the most popular ECG books (according to Amazon and…

…MAP within an optimal range is crucial in managing conditions like sepsis, trauma, and shock, where perfusion may be compromised. Hemodynamic determinants of MAP Hemodynamically…

…toxicity. Several underlying conditions increase a patient's sensitivity to digitalis related arrhythmias. The clinician must evaluate for the presence of worsening renal function, advanced…

…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…

…with treatment. Reported risks of myocardial infarction, stroke, end stage renal disease, and death may be two to six fold higher in affected adults. True…

…the ceiling of care. Signs of a serious condition Finding Significance : : Inability to speak in full sentences Marked work of breathing Use of accessory respiratory…

…suggest whether other interventions (e.g. heart failure management, evaluation for coronary artery disease, etc .) are warranted. Management of AV blocks aims to restore atrioventricular…

…Use of synchronized electric shock (i.e. a shock synchronized to the QRS complex). Typically used to treat atrial fibrillation, ventricular tachycardia, and other tachyarrhythmias…

…ACS . Virtually all cases of STE ACS lead to myocardial infarction (elevated troponin levels), whereafter the condition is classified as ST Elevation Myocardial Infarction (STEMI) …