…which involves the arch without involvement of the ascending aorta or represents retrograde extension from the descending aorta into the arch that stops before reaching…

…of myocardial infarction injury involves the overlapping of vulnerable plaque and thrombogenic blood, which are critical determinants for infarction occurrence and extension. Plaque rupture or…

…Infection or burns over the puncture site. Osteogenesis imperfecta and severe osteoporosis (relative). An inability to identify the landmarks. Choice of vein and cannula size…

…high shear conditions. Disruption of an atherosclerotic plaque or injury associated with PCI exposes thrombogenic material, promoting platelet activation, aggregation, and fibrin formation. Within a…

…progressive or diagnostically unclear AKI. Definition and staging according to KDIGO Acute kidney injury is present when at least one of the following criteria is…

…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…

…of avascular necrosis of the femoral head and of vascular injury; always an orthopaedic surgeon, and usually general anaesthesia. An open dislocation. Inadequate analgesia or…

…failure, and heart failure have been identified as important risk factors. Severe atherosclerosis of the axillary or subclavian arteries may increase the risk of embolization…

…obtained or become abnormal, in the presence of symptoms suggestive of ischaemia and presumed new ischaemic ECG changes. The distinction between myocardial injury and type…

…The extent of myocardial injury is strongly influenced by total ischaemic time. This interval includes: The time from symptom onset to recognition and seeking medical…

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

…al, JAMA Cardiology (2020). Guo et al reported that 27.8% (52 of 187 patients) had myocardial injury, defined as elevated troponin T levels (TnT)…

…The injury is considered acute if there is a documented rise and/or fall of cTn values. However, myocardial injury alone is an entity in…

…cardiac arrest is witnessed and the rhythm is shockable). This is explained by the fact that there are no means of determining what phase the…

…ROSC or initiation of ECMO. The syndrome was first described by Negovsky , who identified four processes that defined the victim's outcome: Neurological injury Myocardial…

…a glass injury: consider radiography, since glass is usually visible on plain films. Irrigation fluid: a copious volume of drinking quality tap water or sodium…

…to healthy populations or those with acute kidney injury. Influence of Muscle Mass and Diet: Serum creatinine levels, a key component of the MDRD equation…

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

…volume of air is substantial enough to compress the superior and inferior vena cava, impeding or halting venous return to the heart. In instances of…

…instrumental removal: Suspected penetrating injury or an intraocular foreign body — shield the eye with a rigid shield, give systemic antibiotics and contact an ophthalmologist urgently…

…ABCDE assessment and document the time of seizure onset, or the time the patient was last known to be well. Protect the patient from injury…

…control centre for advice on the treatment threshold and on whether haemodialysis should be considered. Rhabdomyolysis with marked elevation of CK and threatened kidney injury…

…at the time of examination and that the examiner is experienced with the head impulse test; performed on the wrong patient or by an inexperienced…

…assess renal function and the rate of rise. Often outpatient or brief inpatient follow up depending on the clinical picture Moderate 6.0 to 6…

…broadly, bradyarrhythmic arrest and asystole represent severe manifestations of impulse generation or conduction failure. The pathophysiology of these events may stem from reversible causes, including…

…abdominal, or visceral, adipose tissue is more closely related to insulin resistance and the risk of diabetes and cardiovascular disease than total adiposity alone. The…

…the occurrence of new onset seizures or coma in a pregnant woman with preeclampsia. HELLP syndrome—haemolysis, elevated liver enzymes or transaminases, and thrombocytopenia—is…

…cTn) values in the setting of acute or chronic heart failure are often better categorised as myocardial injury. Clinical Presentation and Symptoms Patients with Type…

…cordis implies actual structural injury to the tissues. Manifestations of contusio cordis include: Arrhythmias : Ventricular or supraventricular arrhythmias (bradyarrhythmia or tachyarrhythmia). Atrial or ventricular rupture …

…fracture or a marked midfacial fracture — the tube can pass through a fracture in the cribriform plate into the cranium Absolute Corrosive injury of the…

…medicine Emergency medicine Definition and pathophysiology Acute limb ischaemia (ALI) is an abrupt reduction in arterial perfusion of an upper or lower limb that causes…

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

…kPa) and avoidance of hypoxia, since hypercapnia raises the intracranial pressure. Circulation Parameter Target Comment : : : MAP ≥ 65 mmHg 80–85 mmHg in chronic hypertension or…

…characterized by systemic congestion resulting from impaired RV filling and/or reduced RV output. Recognition of this syndrome is critical because it may precede haemodynamic…

…Assessment should integrate the history, physical examination, laboratory data and diagnostic testing. Examination for congestion Useful bedside indicators of persistent or improving congestion include: J

…mediated. Pericardial injury, necrosis, bleeding, or pleural incision may expose cardiac antigens and initiate an inflammatory response. The presence of antibodies directed against cardiac tissue…

…skeletal muscle damage or inflammation may result in elevated cTnT levels. Although both troponin T and I may be chronically elevated in patients with renal…

…The combination of physiology, rate of bleeding, the pattern of injury or disease, the response to initial treatment and the expected continued bleeding matters more…

…primarily in the context of suspected acute coronary syndrome and acute myocardial ischaemia. Patients may present with acute chest pain or chest pain equivalent symptoms…

…and optical coherence tomography (OCT) can reveal lesions that are not apparent on conventional angiography. Coronary vasomotor disorders may involve epicardial spasm or abnormalities of…

…is most often enzyme induction by alcohol or drugs and is often of no clinical significance. Synthetic function and prognosis Child–Pugh Parameter 1 point…

…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…

…ischemic or intracerebral haemorrhage may coexist with severe hypertension. The decision to lower BP in acute stroke requires attention to the type of stroke and…

…Stent implantation Manipulation of friable SVG lesions Embolic debris obstructs the distal microcirculation and may be accompanied by microvascular constriction and endothelial or myocardial injury…

…the presence of multilevel disease and collateral circulation. Flow limitation may be clinically silent, manifest as exertional symptoms, or progress to chronic limb threatening ischaemia…

…evidence of acute cardiomyocyte injury or necrosis. It is distinguished from acute myocardial infarction (AMI), in which myocardial ischaemia is accompanied by cardiomyocyte necrosis and…

…progressive, and highly complex lipid driven inflammatory disease of the arterial intima that serves as the fundamental pathophysiological substrate for acute coronary syndromes (ACS), including…

…marker of myocardial injury, not a disease specific marker of myocardial infarction (MI). MI requires both: Acute myocardial injury, demonstrated by a rising and/or…

…of infarction. Early thrombus formation is associated with poor short term prognosis, although early mortality is usually related to the extent of myocardial injury and…

…important. Inhibition of cytochrome P 450 3A4 or 2C9 can increase statin concentrations. Relevant interacting agents include amiodarone, macrolide antibiotics such as erythromycin and clarithromycin…

…rupture or erosion of a vulnerable (unstable) atherosclerotic coronary plaque. Upon such damage, the plaque exposes highly thrombogenic materials which activate circulating platelets and coagulation…

…ligament injury, a tendon injury, or after suturing over a joint. Pain relief and stabilisation for transfer in a suspected fracture. Clinical suspicion of a…

…The diagnosis and the donor care The time from withdrawal of treatment to circulatory arrest Indications An intensive care patient with severe brain injury in…

…oedema, acute aortic syndrome, acute kidney injury, microangiopathic haemolysis, and severe pre eclampsia or eclampsia. The blood pressure is often at least 180/120 mmHg…

…coagulopathy or thrombocytopenia (< 50 ×10⁹/L) — choose the subcutaneous route if possible, otherwise give IM with a fine needle and 5 minutes of compression…

…depression, or untreated severe respiratory failure without the possibility of monitoring. Paralytic ileus and suspected obstructive ileus (an opioid can be given for the pain…

…spread of infection A small or uncooperative child Movement causes injury Preparation and equipment Otoscopy: an otoscope with a charged battery and clean disposable specula…

…why, or the patient at risk of carbon dioxide retention is given 15 litres on a reservoir mask and drifts off into a respiratory acidosis…

…or to confirm a creatinine based value The mean of creatinine and cystatin C The most reliable in routine clinical practice Cockcroft–Gault Still used…

…to moderate heart failure, kidney or liver disease, especially when combined with diuretics (risk of fluid retention and impaired kidney function). Patients with bronchial asthma…