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POPULAR CARDIOLOGIST IN AMRUTHA HALLI , BANGALORE Assessment of patients with hypertension A patient with definite or possible newly diagnosed hypertension needs at least a basic clinical assessment to look for possible aetiology, severity and signs of complications. The history Questioning should be directed towards the following areas. 1 Past history. Has hypertension been diagnosed before? What treatment was instituted? Why was it stopped? 2 Secondary causes. Important questions relate to: • a history of renal disease in the patient or his or her family, recurrent urinary tract infec-­ tions, heavy analgesic use or conditions leading to renal disease (e.g. systemic lupus erythematosus (SLE)) • symptoms suggesting phaeochromocytoma (flushing, sweats, palpitations) • symptoms suggesting sleep apnoea • muscle weakness suggesting the hypokalaemia of hyperaldosteronism • Cushing’s syndrome (weight gain, skin changes) • family history of hypertension. 3 Aggravating factors: • high salt intake • high alcohol intake • lack of exercise • use of medications: NSAIDs, appetite suppressants, nasal decongestants, monoamine oxidase inhibitors, ergotamine, cyclosporin, oestrogen-containing contraceptive pills • other: use of cocaine, liquorice, amphetamines. 4 Target organ damage: • stroke or transient ischaemic attack (TIA) • angina, dyspnoea • fatigue, oliguria • visual disturbance • claudication. 5 Coexisting risk factors: • smoking • diabetes • lipid levels, if known
HEART SPECIALISTS IN GANGAMMA CIRCLE BANGALORE Assessment of patients with hypertension A patient with definite or possible newly diagnosed hypertension needs at least a basic clinical assessment to look for possible aetiology, severity and signs of complications. The history Questioning should be directed towards the following areas. 1 Past history. Has hypertension been diagnosed before? What treatment was instituted? Why was it stopped? 2 Secondary causes. Important questions relate to: • a history of renal disease in the patient or his or her family, recurrent urinary tract infec-­ tions, heavy analgesic use or conditions leading to renal disease (e.g. systemic lupus erythematosus (SLE)) • symptoms suggesting phaeochromocytoma (flushing, sweats, palpitations) • symptoms suggesting sleep apnoea • muscle weakness suggesting the hypokalaemia of hyperaldosteronism • Cushing’s syndrome (weight gain, skin changes) • family history of hypertension. 3 Aggravating factors: • high salt intake • high alcohol intake • lack of exercise • use of medications: NSAIDs, appetite suppressants, nasal decongestants, monoamine oxidase inhibitors, ergotamine, cyclosporin, oestrogen-containing contraceptive pills • other: use of cocaine, liquorice, amphetamines. 4 Target organ damage: • stroke or transient ischaemic attack (TIA) • angina, dyspnoea • fatigue, oliguria • visual disturbance • claudication. 5 Coexisting risk factors: • smoking • diabetes • lipid levels, if known • existing vascular disease • family history of ischaemic heart disease. 2• HYPERTENSION 6 Factors affecting choice of treatment: • diabetes (problems with thiazides and beta-blockers) • gout (problems with thiazides) • asthma (problems with beta-blockers) • heart failure (problems with verapamil, diltiazem, some beta-blockers, monoxidine) • severe peripheral arterial disease (problems with beta-blockers) • bradycardia or heart block (problems with beta-blockers, verapamil, diltiazem) • renovascular disease (problems with ACE inhibitors, angiotensin receptor antagonists (ARAs)) • problems with previous anti-hypertensive agents • allergies • likelihood of pregnancy (ACE inhibitors, diuretics and some calcium antagonists are contraindicated). The examination The physical examination should be undertaken with a view to establishing severity. 1 Measure the blood pressure. 2 Look for secondary causes. • Check the appearance for Cushing’s syndrome (central obesity, striae, muscle wasting), acromegaly, polycythaemia and uraemia. • Undertake abdominal palpation for renal masses (polycystic kidneys), occasionally adrenal mass, and auscultation for renal bruit (heard to the left or right of the mid-line above the umbilicus, often into the flanks). • Assess radiofemoral pulse delay and listen for mid
The causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm (p. 146) (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality
The causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm (p. 146) (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality HEART SPECIALIST IN YELAHANKA
CARDIOLOGIST IN SAHAKARANAGAR The causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm (p. 146) (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality 5 vasculitis.
CARDIOLOGIST IN YELAHANKA causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm . (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality 5 vasculitis.
HEART SPECIALISTS IN YELAHANKA NEW TOWN BANGALORE The causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality 5 vasculitis. Numerous other cardiac symptoms and problems can be the eventual result of atheromatous coronary disease. These include myocardial infarction , cardiac failure cardiac arrhythmias and some cardiac valve problems. Risk factor mechanisms of action Atherosclerosis is thought to result primarily from a disturbance of the vascular endothelium. The final common pathway for the effects of endothelial dysfunction is largely through abnormalities of nitric oxide (NO) production. This chemical, released by a healthy endothelium, is a potent vasodilator and has anti-inflammatory and other favourable actions on the arteries. Causes of this disturbance can be: n mechanical (hypertension) n chemical (oxidised lipids, components of cigarette smoke, hyperinsulinaemia) or n due to immunological injury. The damaged endothelium attracts inflammatory mediators, platelets and circulating lipids and promotes fibroblast and smooth muscle proliferation. This results in the formation of a plaque, which may narrow the arterial lumen. Plaques can remain stable (or sometimes regress), enlarge, rupture or erode (more common in diabetics). Most acute ischaemic events (acute coronary syndromes or acute myocardial infarctions) are thought to be the result of further luminal narrowing caused by the formation of partly or fully occlusive thrombus on a ruptured or eroded plaque. Coronary risk factors may therefore operate because they are atherogenic or thrombogenic. Plaque rupture Plaque rupture may be at least partly an inflammatory process involving inflammatory cells, cytokines and even bacteria. This may explain the association between inflammatory markers such as high-sensitivity C reactive protein (hsCRP) and a risk of acute coronary events. Although this association seems well established, there is still uncertainty about its role in overall risk assessment Plaques at risk of rupture are called vulnerable plaques. They typically have a thin fibrous cap. The shoulde of these caps are at risk of rupturing and allowing material from within the plaque to come
cardiologists in yelahanka new town bangalore The causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm (p. 146) (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality 5 vasculitis.
cardiologists in yelahanka new town bangalore The causes of coronary symptoms The symptoms of coronary artery disease are caused by the reduction of myocardial perfusion that results from narrowing of the lumen of one or more of the coronary arteries. This narrowing is most often the result of atherosclerosis. Other much less common causes include: 1 coronary artery spasm (p. 146) (often in an already diseased segment of artery but sometimes as a result of the use of cocaine) 2 thrombosis (usually on an already diseased, or occasionally aneurismal, segment) 3 embolism (e.g. from an infected aortic valve) 4 congenital coronary abnormality 5 vasculitis.
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