…sputum purulence, the other cardinal symptoms and the severity of the illness. 7. Start NIV without undue delay in persistent hypercapnic respiratory acidosis, if invasive…

…electrocardiographic abnormalities and with or without an acute rise in cardiac troponin. The spectrum ranges from symptom free presentation to persistent chest discomfort, cardiac arrest…

…limiting epicardial coronary stenosis. It is therefore a disorder of coronary microvascular perfusion rather than persistent obstruction of the treated epicardial segment. The phenomenon occurs…

…elevation myocardial infarction (STEMI) is an acute coronary syndrome characterized clinically by acute myocardial ischaemic symptoms or equivalent presentations together with persistent ST segment elevation…

…the sensitization of sensory nerve endings due to the accumulation of bradykinin. ACE is responsible for metabolizing bradykinin and other tachykinins, such as substance P…

…Dyslipidaemia, cigarette smoking, hypertension, diabetes mellitus and other adverse influences disturb these functions. The resulting endothelial dysfunction promotes inappropriate vasoconstriction, adhesion of circulating cells, inflammatory…

…or arteries supplying the limbs. In adults over 40 years of age, atherosclerosis is the predominant cause. Other mechanisms include thrombosis, embolism, vasculitis, fibromuscular dysplasia…

…Other guideline formulations similarly define resistant hypertension as blood pressure above goal despite three or more antihypertensive drugs from different classes at maximally tolerated doses…

…with particular vigilance when the clinical history includes hypokalaemia. Endocrine disorders account for many secondary forms. Primary hyperaldosteronism is identified as the most frequent cause…

…with a collection of pus. Persistent painful induration after a few days of antibiotics — suggests that an abscess has formed. Ultrasound settles the question when…