…of monitoring, supportive treatment, anticoagulation, and possible reperfusion. The principal pathophysiological determinant of early adverse outcome is acute RV failure. In acute PE, obstruction of…

…failure — compression of both legs acutely increases preload. Untreated deep vein thrombosis in the acute phase. Septic phlebitis, ongoing soft tissue infection with systemic involvement…

…a blood gas and an ECG all come before complete identification of the substance. Treatment of acute poisoning consists of four parallel components: supportive treatment…

…of myocardium at risk. Over 48 hours: urgent PCI is still indicated with continuing ischaemia, shock, serious arrhythmia or acute heart failure. Routine opening of…

…messages Two things set the COPD exacerbation apart from many other causes of acute dyspnoea: oxygen must be titrated cautiously and the blood gas determines…

…contrast media and recently stopped drugs. 8. Treat sepsis, bleeding, shock, hypoxia and any other underlying cause immediately. 9. Request ultrasound of the kidneys and…

…and intensive care early with life threatening features or an inadequate response. First line treatment is oxygen in hypoxaemia, repeated doses of an inhaled short…

…The standard investigation in acute stroke to identify large vessel occlusion, dissection or other vascular pathology CT perfusion Used with an unclear time of onset…

…is: Continuous acute dizziness with spontaneous nystagmus: consider HINTS plus, but only if the examiner is trained. Brief attacks triggered by the position of the…

…and carry greater risk of progression or rupture than asymptomatic lesions. Predisposing conditions Aortic dissection and its variants are associated with conditions that cause medial…

…Definition and pathophysiology Acute coronary syndrome (ACS) comprises a spectrum of clinical presentations caused by suspected acute myocardial ischaemia. It includes patients with recent changes…

…adequate. For example, a patient with acute graft occlusion may report an abrupt reduction in walking distance before claudication, accompanied by moderate pain or paresthesia…

…Posterior (posterolateral) acute myocardial infarction (STEMI) The heart is rotated 30° to the left in the thorax. This positions the basal portion of the left…

…8/min, or an increasing level of sedation , are signs of overdose. Sedation precedes respiratory depression; monitor it. Naloxone is titrated to spontaneous breathing, not…

…decrease (e.g due to sinus pause or post VPC pause) results in augmentation of early afterdpolarization amplitude (typically seen with large T wave amplitude)…

…that of other forms of acute tubular necrosis, although the complication remains associated with post procedural morbidity and mortality. Pathophysiology The precise mechanism of contrast…

…reperfusion therapy. This approach fails to identify a substantial proportion of patients with acute coronary occlusion (ACO) who present without diagnostic ST elevation, often resulting…

…Acute Coronary Syndrome) & STEMI (ST Elevation Myocardial Infarction) Acute coronary syndromes with significant ST segment elevations are classified as STE ACS . Virtually all cases of…

…Definition & Criteria Acute myocardial infarction is the most severe complication of coronary artery disease. The most common initiating mechanism is rupture or erosion of a…

…as Compared with Dobutamine in the Treatment of Cardiogenic Shock. N Engl J Med 2021; 385:516 525 Indications Severe left ventricular failure, acute or…

…acute, life threatening complication of coronary atherosclerosis. The transition from a quiescent plaque to a highly thrombogenic surface occurs via three primary mechanisms: Plaque Rupture…

…in STE ACS/STEMI. Note that a patient with STEMI may present during any of the phases illustrated in this figure, which is why it…

…acute glomerular disease or scleroderma renal crisis [1,2]. A hypertensive emergency means a markedly raised blood pressure together with ongoing or new organ damage…

…cardiac arrest mechanical complications of acute myocardial infarction. acute heart failure recurrent dynamic ST segment or T wave changes, particularly with intermittent ST segment elevation…

…evaluation must also consider acute severe mitral regurgitation, mechanical complications, and ischaemia related ventricular failure as potential causes of shock. Patients with moderate to severe…

…but not 6 month DAPT, was associated with higher rates of myocardial infarction or stent thrombosis in ACS patients. Extension beyond 12 months DAPT beyond…

…are: Plaque rupture with exposure of thrombogenic material. Superficial plaque erosion. Thrombosis associated with a calcified nodule. Epicardial or microvascular coronary spasm. Spontaneous coronary artery…

…selected cases of upper abdominal pain. An ECG recording costs approximately $10 (10€) and may reduce morbidity and mortality substantially in patients with acute coronary…

…of the thrombus in the artery: a proximally located thrombus will cut off blood flow to more branches, and thus more myocardium, as compared with…

…depressions, T wave changes) are typically concealed in the setting of LBBB. A patient with acute STEMI may therefore display a normal LBBB pattern. LBBB…

…a few hours after the onset of myocardial infarction. This is utilized in clinical practice by detecting troponins in patients with suspected acute coronary syndromes…

…the efficacy of diuretics and antihypertensives. Risk of acute kidney injury increases when combined with ACE inhibitors. Corticosteroids and other NSAIDs: Increased risk of gastrointestinal…

Procedurer In acute circulatory failure it is not the number of cannulae that matters but the flow per unit time . A large bore, short cannula…

…The reader should already be familiar with the classification of acute coronary syndromes. Subsequent chapters will deal with ST segment elevation myocardial infarction (STEMI) and…

Cardiology Diagnosis and treatment of bradycardia (bradyarrhythmia) Acute bradycardia with hemodynamic instability Acute bradycardia with hemodynamic effects is a potentially life threatening condition and should…

ECG Myocardial ischemia and infarction Acute myocardial infarction (AMI) always affects the left ventricle Myocardial infarction is virtually synonymous with left ventricular infarction . All myocardial…

…recovering from myocardial infarction or acute coronary syndrome. Patients with stable or chronic atherosclerotic coronary disease, many of whom have a previous acute coronary syndrome…

…Definition and Pathophysiology Acute coronary syndromes (ACS) encompass a spectrum of clinical conditions characterized by a recent change in symptoms or signs, with or without…

…Patients with previous acute coronary syndromes (ACS) Exercise stress testing is routinely performed after acute myocardial infarction in order to assess the presence of myocardial…

…angina is considered an acute coronary syndrome because it is an imminent precursor to myocardial infarction. Approximately 50% of patients with unstable angina progress to…

…with one notable exception. Occurrence of upsloping ST segment depressions with prominent T waves in the majority of the chest leads may indicate an acute…

…Management of acute STEMI is discussed in detail below. The clinical definitions and recommendations presented in this chapter are in line with guidelines issued by…

…depressions) – is never a sign of acute ischemia. T wave inversions with concomitant ST segment deviations are, however, typical of ischemia but in that scenario…

…Differential Diagnosis of Chest Pain: A Clinical Overview The evaluation of acute chest discomfort requires a systematic differential diagnosis, as the syndrome associated with ischemic…

…with those with spontaneous dissection. Clinical manifestations may result from rupture, aortic valve involvement, coronary compromise or malperfusion. Important presentations include: Hypotension or shock Acute…

…identify specific hemodynamic profiles: the presence of hypotension, end organ hypoperfusion, shock states, and pulmonary congestion. In pregnant patients presenting with suspected acute heart failure…

…and pathophysiology Spontaneous coronary artery dissection (SCAD) is an acute coronary disorder caused by separation within the coronary arterial wall, usually through formation of an…

…UA) is an acute coronary syndrome characterized by myocardial ischaemia occurring at rest or with minimal exertion, without evidence of acute cardiomyocyte injury or necrosis…

…commonly stated that approximately 80% of all cardiac arrests are caused by acute or chronic coronary artery disease, with the latter being the most common…

…influenced effects on the cardiovascular system. Acute exposure produces transient haemodynamic and myocardial effects, whereas sustained heavy consumption is associated with hypertension, coronary artery disease…

…infarction may indicate an increased long term risk of stroke. In patients with acute decompensated heart failure, AF with rapid ventricular response is particularly important…

…of acute, ongoing target organ damage. Although BP reduction is required, these patients generally do not need hospital admission or intravenous treatment. Some patients with…

…ischemia and infarction Definition and pathophysiology Post infarction pericarditis encompasses two temporally and clinically distinct complications of acute myocardial infarction (AMI): Early infarct associated pericarditis …

…every patient with an initial STEMI pattern has myocardial infarction as the final diagnosis. The underlying process usually involves acute thrombotic obstruction of an epicardial…

…is an acute myocardial infarction associated with a working diagnosis of persistent ST segment elevation or an accepted equivalent in the setting of ischaemic symptoms…

…including acute occlusions, subtotal stenoses, and discusses associated clinical presentations, prognostic implications, and management strategies. In the GRACE ECG substudy of 5000 patients with non…

…LVEF). The majority of all clinical trials, epidemiological studies and mechanistic studies have been carried out in HFREF (heart failure with reduced ejection fraction) . Thus…

…LVEF). The majority of all clinical trials, epidemiological studies and mechanistic studies have been carried out in HFREF (heart failure with reduced ejection fraction) . Thus…