…entity requiring immediate reperfusion therapy. The pathophysiology of myocardial infarction injury involves the overlapping of vulnerable plaque and thrombogenic blood, which are critical determinants for…

…other procedural intervention. The clinical importance of the finding is related to the extent of myocardium at risk. Occlusion or impaired perfusion in a vessel…

…of acute aortic syndrome (AAS), alongside intramural haematoma, penetrating atherosclerotic ulcer, aortic pseudoaneurysm and traumatic aortic injury. In classic dissection, an intimal tear permits blood…

…downstream, causing microvascular embolization (i.e occluding smaller vessels downstream). The thrombosis causes occlusion of the artery; blood flow may be partially or completely obstructed…

…by the gradual accumulation of inert cholesterol debris, modern vascular biology has redefined atherosclerosis as a dynamic, immune mediated fibroproliferative response to endothelial injury [2]…

…KDIGO Acute kidney injury is present when at least one of the following criteria is met [1]: A rise in creatinine of at least 26…

…and blood transfusion with radial access. Radial access has also been associated with lower overall major adverse cardiac events and mortality in pooled analyses of…

…combined effects of contrast exposure and other ischaemic or nephrotoxic stresses. The kidney is particularly vulnerable to toxic injury because of its high blood flow…

…days and weeks. It reduces cardiac output and lower blood pressure. Cardiogenic shock may develop as a result of stunning. The systemic response to reperfusion…

…or other vascular beds. Malignant hypertension represents an extreme form in which acute microvascular injury occurs, classically involving fibrinoid necrosis of small arteries in the…

…sampling. Urinary catheter with hourly urine output measurement — the treatment cannot be guided without reliable measurement of urine output. Baseline tests: blood gas with electrolytes…

…pulmonary vascular obstruction is accompanied by limited cardiopulmonary reserve or other adverse comorbidity. The classification of acute PE comprises four clinically useful groups: High risk…

…zone. Coronary Occlusion and Myocardial Injury STEMI generally results from abrupt reduction in coronary blood flow caused by thrombotic occlusion of a previously atherosclerotic artery…

…ischaemia (ALI) is an abrupt reduction in arterial perfusion of an upper or lower limb that causes tissue metabolic requirements to exceed available blood flow…

…Type 2 myocardial infarction (MI) is defined as an ischaemic myocardial injury occurring in the context of a mismatch between myocardial oxygen supply and demand…

…no absolute threshold defines the condition. A rapid rise in blood pressure can cause serious organ damage even at lower levels, particularly in pregnancy [1…

…Types 2–5 MI have other mechanisms of myocardial ischaemia and necrosis. Unstable angina (UA) represents myocardial ischaemia without demonstrable acute cardiomyocyte injury or necrosis…

…macrophages, neurons and other tissues. This distribution helps explain why PA produces cardiovascular injury beyond its effects on blood pressure and potassium balance. The principal…

…inflammation and other systemic influences. The severity of myocardial injury is determined not only by the epicardial obstruction but also by the vulnerability of the…

…hyperoxia increases the risk of pulmonary toxicity. Keep the saturation in the lower part of the target range. Paraquat poisoning — oxygen worsens the lung injury…

…in females or at least 15 drinks weekly in males, or binge drinking in either sex. Other definitions of unhealthy drinking include at least two…

…closer monitoring — the patient cannot feel pressure injury Peripheral neuropathy of other cause As above Severe pain Titrate the pressure up gradually Rheumatoid arthritis with…

…Concussion, temporal bone injury, dissection, aminoglycoside toxicity, antiepileptic drugs, alcohol or sedatives Trauma and medication directed workup This corresponds to the principles of TiTrATE, in…

…myocardial injury , demonstrated by a rise and/or fall in cTn with at least one value above the 99th percentile URL; and Clinical evidence of…

…levels. The mortality rate among patients with elevated troponin I was 51.2%, as compared with 4.5% among patients without evidence of myocardial injury…

…The test presupposes that the patient has spontaneous nystagmus at the time of examination and that the examiner is experienced with the head impulse test…

…rate. Within the context of acute coronary syndromes, particularly ST elevation myocardial infarction (STEMI), ischemic injury can disrupt the conduction system at any level, producing…

…or numbness of the foot and toes. Pain that is worse at night or when the limb is horizontal. Improvement when the leg is placed…

…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…

…with atherosclerotic mediated myocardial infarction. A history of cigarette smoking may be present despite relatively few other conventional atherosclerotic risk factors. A substantial proportion present…

…liver injury is the commonest cause Isolated bilirubin Unconjugated, the others normal Gilbert's syndrome, haemolysis The R value = (ALT / upper limit of normal…

…Discontinue acetylsalicylic acid at the first sign of skin rash, mucosal lesions, or hypersensitivity. Interactions Pharmacodynamic interactions Anticoagulants, thrombolytics, or other platelet aggregation inhibitors: Salicylates…

…Subclinical cerebral injury may contribute to vascular dementia, and thromboembolism may affect organs other than the brain. Patients with AF in the setting of ACS…

…cardiac chamber or vessel. Other congenital anomalies include anomalous origin of a coronary artery from the pulmonary artery and anomalous origin of one coronary artery…

…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…

…is a common and early electrocardiographic sign of acute pericarditis, reflecting pericardial involvement overlying the atria [4, 5]. Other Differential Diagnoses ST segment elevations simulating…

…transmural ischemia. On the other hand, leads V1–V3 (occasionally V4) may detect the injury currents and present them as ST segment depressions. These depressions…

…the opposite angle of observation. The injury currents are not strong enough to be detected on leads with opposite angle of observation. Other vectors may…

…and cardiovascular death — a patient with an eGFR of 70 and A3 is at higher risk than one with an eGFR of 50 and A1…

…hyperplasia The principal mechanism of ISR is neointimal hyperplasia following vessel wall injury. PCI and stent implantation produce local vascular injury and initiate a sustained…

…platelet rich because they form under high shear conditions. Disruption of an atherosclerotic plaque or injury associated with PCI exposes thrombogenic material, promoting platelet activation…

…transmural ischemia. On the other hand, leads V1–V3 (occasionally V4) may detect the injury currents and present them as ST segment depressions. These depressions…

…Orthopaedic surgeon Close to large vessels, in the groin or on the neck Bleeding, vascular injury, pseudoaneurysm Surgeon, ultrasound first Other situations that argue for…

…if there is suspicion of cervical spine injury, in which scenario head tilt chin lift should only be used if other methods fail to open…

…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…

…or unsecured airway in a patient with a reduced level of consciousness Gastric lavage Corrosive injury or suspected oesophageal perforation Gastric lavage Petroleum products Gastric…

…longer a joint remains dislocated, the harder the reduction becomes and the greater the risk of chondral and neurovascular injury. Aim for reduction within a…

…Acute myocardial infarction requires: Acute myocardial injury, demonstrated by a rise and/or fall in cardiac troponin with at least one value above the 99th…

…objective is restoration of blood flow to the infarct related myocardial territory and limitation of infarct size. The extent of myocardial injury is strongly influenced…

…Universal Definition of Myocardial Infarction Consensus Documents, with the Fourth Universal Definition published in 2018. A fundamental prerequisite for diagnosing any MI is myocardial injury…

…rhythm is shockable). This is explained by the fact that there are no means of determining what phase the patient is in. The three phases…

…been assessed for tendon and nerve injury will heal badly however neatly the suture is placed. The commonest cause of wound infection is retained contamination…

…need for more invasive and costly direct measurements of GFR. Limitations of MDRD eGFR Accuracy at Higher GFR Levels: The MDRD equation tends to underestimate…

…Inadequate ventilation with a rising pCO₂ and respiratory acidosis, or a markedly increased work of breathing with impending exhaustion. Threatened airway obstruction: inhalation injury, anaphylaxis…

…the anterior axillary line. Thoracostomy This method is generally deemed safer than using a needle due to reduced risk of injury. Thoracostomy should be performed…

…of a slit lamp — the cornea should not be instrumented without magnification. With a suspected chemical injury the priorities are reversed: irrigate first , for at…

…After about 30 minutes of continuous convulsive activity, t2, the risk of permanent neuronal injury increases. Treatment must therefore start at 5 minutes and be…

…A patient with a plasma potassium of 6.2 mmol/L, new bradycardia and acute kidney injury may be at greater immediate risk than a…

…or blood products. Contrast medium for CT (this requires a large bore cannula in a suitable vein). Standby access in a patient at risk of…

…together promote left ventricular hypertrophy and kidney injury. The syndrome is therefore both a clinical risk factor cluster and a marker of broader metabolic dysfunction…