The journal of the Royal College of Physicians of Edinburgh
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Oral anticoagulation therapy has reduced the risk of ischaemic stroke and improved the outcomes for patients with atrial fibrillation considerably. The emergence of the non-vitamin K oral anticoagulants as alternatives to vitamin K antagonists has significantly changed the practice of stroke prevention in atrial fibrillation. ⋯ Individual approach is often mandatory due to heterogeneity of the risks and patient preferences. The purpose of this review is to summarise the current knowledge of the oral anticoagulation therapy in atrial fibrillation patients and guide physicians with the management of anticoagulants based on data from clinical trials and systematic reviews.
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The haemostatic system comprises four compartments: the vasculature, platelets, coagulation factors, and the fibrinolytic system. There is presently no laboratory or near-patient test capable of reproducing the complex regulated interaction between these four compartments. ⋯ This article will give a general overview of the limitations of PT and APTT and discuss specific issues that need to be considered when the tests are requested, in the context of anticoagulant monitoring, bleeding symptoms, and routine preoperative screening. Of these indications, routine preoperative screening is the most controversial and is generally not warranted in the absence of an abnormal bleeding history.
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Psoriasis is a chronic, immune-mediated inflammatory skin disease affecting 1.3-2.2% of the UK population.1 Most commonly, psoriasis is characterised by well-demarcated, red plaques with adherent scale with a predilection for the scalp and extensor surfaces of the limbs. However, the effects of psoriasis go far beyond a patient's skin and may result in a degree of disability and impaired quality of life similar to that of other major medical conditions, such as cancer and heart disease. First-line therapies for most patients are topical treatments such as topical corticosteroids and vitamin D analogues. ⋯ Aside from the visible skin disease, psoriasis is also increasingly recognised to have important systemic manifestations. Psoriatic arthritis has long been established as an associated condition and, more recently, it has emerged that psoriasis is also associated with an increased risk of inflammatory bowel disease, cardiovascular disease and the metabolic syndrome. Both National Institute for Health and Care Excellence (NICE)2 and Scottish Intercollegiate Guidelines Network (SIGN)3 have recently published guidelines for the assessment and management of psoriasis which highlight the need for regular assessment in order to detect the development of arthritis and the presence of other co-morbidities such as obesity, diabetes, dyslipidaemia and hypertension.
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Occupational medicine represents the interface between work and health. As such, its breadth encompasses issues of clinical medicine, epidemiology, occupational hygiene, toxicology, ethics, and the law. ⋯ It is not surprising that many clinicians find this challenging. The aim of this paper is to provide a summary of common work-related lung disorders, and stress the importance of considering a patients' occupation when presented with a range of respiratory symptoms.
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Hyperkalaemia, an elevated extracellular fluid potassium concentration, is a common electrolyte disorder and is present in 1-10% of hospitalised patients. Elevated serum potassium concentrations are usually asymptomatic but may be associated with electrocardiogram (ECG) changes. Hyperkalaemia occasionally leads to life-threatening cardiac arrhythmias. ⋯ Nebulised β-2 adrenoceptor agonists can augment the effects of intravenous insulin and glucose pending more definitive management of the recurrent hyperkalaemia risk. Additional management steps include stopping further potassium intake and careful review of prescribed drugs that may be adversely affecting potassium homeostasis. Changes to prescribing systems and an agreed institutional protocol for management of hyperkalaemia can improve patient safety for this frequently encountered electrolyte disorder.