…and inhibits excitatory glutamate signalling, in part via NMDA receptors. With prolonged alcohol exposure the nervous system adapts through reduced GABA mediated inhibition and increased…

…compression. Infection in the skin overlying the puncture site. Previous pelvic irradiation on the intended side (yields fibrotic, unrepresentative marrow — choose the other side). A…

…abdominal pain or a rapid deterioration in general condition may be the only signs of infection. Corticosteroids and other immunosuppressive treatments can blunt the febrile…

…stenoses. Myocardial ischaemia may occur despite the absence of significant epicardial obstruction. In patients with anginal symptoms and unobstructed or non obstructive coronary arteries, possible…

…complex in I and aVL as well as qR complex in III and aVF (with QRS duration <0.12 seconds), provided that other causes of…

…complex in I and aVL as well as qR complex in III and aVF (with QRS duration <0.12 seconds), provided that other causes of…

…ST elevation myocardial infarction (STEMI) . Chronic Coronary Syndromes (CCS) Coronary artery disease is a progressive but dynamic disease. The majority of individuals in high income…

…ST elevation myocardial infarction (STEMI) . Chronic Coronary Syndromes (CCS) Coronary artery disease is a progressive but dynamic disease. The majority of individuals in high income…

…or other atherosclerotic disease; diabetes and other cardiovascular risk factors; smoking, hypertension, hypercholesterolaemia, and sedentary behaviour; family history, particularly in the broader assessment of peripheral…

…the baseline, regardless of whether its other parts are above the baseline. T wave inversions are frequently misunderstood, particularly in the setting of ischemia. Normal…

…in Western populations, and multiple vessel spasm during provocation testing is also reported more frequently in East Asian populations. VA can occur as part of…

…better maintenance of sinus rhythm in cohort studies. Obesity, reduced exercise capacity, hypertension and dyslipidaemia commonly coexist and should be considered part of the clinical…

…of ischemia, parasympathetic and sympathetic tone) while others take months or years to develop (e.g. myocardial remodeling in heart failure or after myocardial infarction…

…requires elevated levels of cardiac troponins. In addition to elevated troponins, the patient must display either symptoms or ECG changes consistent with myocardial infarction/ischemia…

…allows for standardized comparisons of serial examinations. If pathology is discovered during the standard examination, other examinations (which are not included in the standard examination…

…of peripheral arterial disease and at the same time indicates a substantially increased risk of myocardial infarction and stroke. Indications Intermittent claudication, rest pain in…

…In a fascicular block, the myocardium without fascicular supply will depend on impulses spreading from other parts of the ventricle (where the fascicle is intact…

…debated intensely in the past decade. A quick search (on Google) for anything related to statins, LDL cholesterol and dietary fat returns thousands of blogs…

…of treatment. Interestingly, treatment of VT is considered one of the greatest advances in cardiology. Until 1961, patients with acute myocardial infarction were placed in…

…and sputum in particular that exceeds the patient's normal variation and requires a change of treatment. Common precipitants are viral infection, bacterial infection and…

…and other viral respiratory infections. However, in some individuals the infection may be severe and deadly. Importantly, COVID 19 has caused an unprecedented number of…

…of infection. Approximately 20% of all endocarditis affect people with valve prostheses and among other cases 18% show significant valvular disease. Table 1. Etiologies in…

…of infection. Indications Infusion of vesicant solutions: vasopressors, concentrated potassium, cytotoxic drugs, parenteral nutrition. The need for several simultaneous, incompatible infusions. Haemodialysis, plasmapheresis or other…

…non pregnant adult of normal weight, and individual assessment. See the separate quick reference for dosing in impaired renal function. Respiratory tract Diagnosis Agent Dose…

…Use of cannabis, electronic cigarettes or other inhaled products. Readiness to attempt cessation. Depression, schizophrenia, schizoaffective disorder, HIV infection or other circumstances that may affect…

…modification of loading, eccentric exercise, an NSAID, an orthosis — has not given a sufficient effect. Contraindications Absolute: Cellulitis, a skin wound or other infection over…

…In many cases, the renal injury probably represents acute tubular necrosis arising from the combined effects of contrast exposure and other ischaemic or nephrotoxic stresses…

…without current symptoms, alternating bundle branch block in acute anterior infarction, and before drugs or procedures with a known risk of bradycardia. Transvenous pacing is…

…4. Culture only in the presence of clinical signs of infection — all chronic wounds are colonised, and a culture taken without clinical suspicion leads only…

…another CNS infection. Suspected inflammatory disease: multiple sclerosis, Guillain–Barré syndrome, autoimmune encephalitis. Meningeal carcinomatosis and CNS involvement in haematological malignancy. Investigation of dementia with…

…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…

…depth of the cavity and its distance to vessels. Contraindications and when to involve a surgeon The following locations must not be handled routinely in…

…eGFR of 30 40 mL/min for lower urinary tract infection. At an eGFR <30 mL/min the antibacterial effect is lost. Dosed independently of…

…mentioned below are discussed in detail in other chapters, to which links are provided throughout the text. Heart rate During the first week of life…

…multiorgan failure, infections, seizures and temperature management. The ICU is the preferred level of care for the absolute majority. The CCU may be suitable for…

…is generally performed in order to evaluate ventricular function, since it may affect the choice of device therapy and also suggest whether other interventions (e…

…Alternative route : Central venous administration of adenosine is suitable in the intensive care unit or coronary care unit. Adenosine injection must be administered quickly (1…

…the term perimyocarditis . Hemodynamic effects of pericardial effusion and cardiac tamponade Intrapericardial pressure increases as fluid accumulates in the pericardial space. Intrapericardial pressure may reach…

…barrier to infections. The pericardium reduces friction between the ventricles and surrounding structures of the mediastinum. Friction is reduced because the fluid in the pericardial…

…attention to the balance between reduction in ischaemic events and possible infectious or other non cardiovascular adverse outcomes. Mechanisms of action Colchicine Colchicine appears to…

…myocardial infarction. The chest pain in acute pericarditis may be severe and the patient may also experience cold sweats, tachycardia and anxiety; all of which…

…obstruction of the bowel or the urinary tract. Marked bradycardia, sick sinus syndrome or high grade AV block without pacemaker protection. Asthma and other marked…

…infections, anemia, myocardial ischemia/infarction, pulmonary embolism, pheochromocytoma, hyperthyroidism, hypovolemia, pharmacological substances (alcohol, amphetamine, coffee, anticholinergic drugs, beta adrenergic agonists). In all of these conditions…

…extracellular surface of cardiac cells. Through the guanine nucleotide regulatory proteins Gi and Go, adenosine activates potassium channels (IK.Ach, K.Ado) in a manner…

…the mechanism of an acute coronary syndrome (ACS), particularly when angiography shows no significant obstructive disease or when the culprit lesion is uncertain. In these…

ECG Myocardial ischemia and infarction Use of ECG in acute coronary syndromes & chest pain patients An ECG must be performed on all patients seeking medical…

…V5 is absent. It may be broken, as in Figure 1 . Any type of infarction may cause pathological R wave progression. However, the specificity for…

…definitions of acute coronary syndromes (ACS) and acute myocardial infarction (AMI) Acute coronary syndromes occur when atherosclerotic plaques disrupt, resulting in the activation of thrombocytes…

…waves (Q wave infarction) Lead Definition of pathological Q wave Normal variants V2–V3 ≥0,02 s or QS complex None All other leads ≥0…

…because they represent coronary atherothrombotic events in the setting of a stent thrombosis or restenosis. Type 1 myocardial infarction Definition and pathophysiology Type 1 MI…

…complications Complications during diagnostic coronary angiography occur in approximately 2% of patients. Serious events such as stroke and myocardial infarction occur in fewer than 1%…

…from out of hospital cardiac arrest should not routinely undergo immediate angiography. A selective or delayed approach is recommended in this setting unless other findings…

ECG Myocardial ischemia and infarction Myocardial ischemia: cellular changes, ECG signs and development of infarction Like all other cells in the human body, cardiac myocytes…

Cardiology Myocardial ischemia and infarction Definition and conceptual framework Acute coronary occlusion is the abrupt or progressive reduction of coronary blood flow sufficient to produce…

…setting of ST elevation myocardial infarction (STEMI), cardiogenic shock most commonly reflects severe left ventricular (LV) dysfunction, accounting for approximately 80% of cases. Other causes…

…images involves a systematic comparison of rest and stress images to assess myocardial ischemia and infarction. The key steps in this process are outlined below…

…10% of patients presenting with myocardial infarction in other reports. It is more frequent in women and in patients presenting with NSTEMI than in those…

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

…interventions intended to reduce recurrent infarction, ischaemic stroke, cardiovascular death, and progression of atherosclerotic disease in patients with established coronary or other atherosclerotic vascular disease…

…Other Differential Diagnoses ST segment elevations simulating acute ischemia or infarction may also occur in the following conditions [15]: Myocarditis Early repolarization patterns Left bundle…