The disease progresses slowly, since the nephrons are injured at a. When the number of non-functional nephrons ischemia is sufficiently high, the patient develops kidney failure chronic lentamenteprogresiva. If hypertension has produced significant ischemia of the nephron, it is said that the Kidney has suffered a benign hypertensive nefrosclerosis. It is a common and important cause of failure renalcronica in ages stockings and advanced. Aorta. Hypertension predisposes to the development of large abdominal aortic aneurysms and dissections of the media. Secondary hypertension represents less than 10% of cases in a minority of cases it is considered that there is any structural abnormality responsible for the development of systemic hypertension. For example, the estenosisde renal artery (usually, at its root) by atherosclerosis can result in hypertension, with possible surgical treatment. Hypertension is associated with an elevation of levels of Renin and Angiotensin II in the movement, coming from the ischaemic kidney, and curable in early stages by laextirpacion of kidney affection. Hypertension is also a symptom of diffuse Glomerulonephritis and pyelonephritis Nephropathies. Hypertension is transient in the initial acute phase of glomerular diseases (p. ex., acute nephritic syndrome), but standing in diffuse chronic Nephropathies.Pheochromocytoma, a secreting tumor of adrenaline to noradrenaline which usually emerges in the adrenal Medulla, produces high blood pressure queinicialmente is paroxysmal. The coarctation of the aorta is a congenital malformation which increases peripheral resistance due to a structural stenosis of aorta. In these cases hypertension is not really systemic, since it affects only the arterial system ahead of coarctation, usually to arms, head and neck. High blood pressure is a symptom of diseases of the adrenal cortex that are associated with excessive production of glucocorticoids and mineralocorticoids (syndrome of Cushing and Conn sindromede). It is also a symptom of preeclampsia, and you can associate with endocrinopathies such as hyperthyroidism, acromegaly and, on occasions, hypothyroidism, or neurogenic as intracranial hypertension due to one cause.