hypertension

Hypertension

Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressurein the arteries is elevated.[1] Bloodpressure is summarised by two measurements, systolic and diastolic, which depend on whether the heart muscle is contracting (systole) or relaxed between beats (diastole) and equate to a maximum andminimum pressure, respectively. Normal blood pressure at rest is within the range of 100-140mmHg systolic (top reading) and 60-90mmHg diastolic (bottom reading). High blood pressure is said to be presentif it is persistently at or above 140/90 mmHg.
Hypertension is classified as either primary (essential) hypertension or secondary hypertension; about 90–95% of cases are categorized as "primaryhypertension" which means high blood pressure with no obvious underlying medical cause.[2] The remaining 5–10% of cases (secondary hypertension) are caused by other conditions that affect the kidneys,arteries, heart or endocrine system.
Hypertension puts persistent strain on the heart, leading to hypertensive heart disease and coronary artery disease if untreated. Hypertension is also a major riskfactor for stroke, aneurysms of the arteries (e.g. aortic aneurysm), peripheral arterial disease and is a cause of chronic kidney disease. Even moderate elevation of arterial blood pressure is associatedwith a shortened life expectancy. Dietary and lifestyle changes can improve blood pressure control and decrease the risk of associated health complications, although drug treatment is often necessaryin people for whom lifestyle changes are not enough or not effective.









La hipertensión arterial ( HTA ​​) o la hipertensión, a veces llamada hipertensión arterial, es una enfermedadcrónica en la que se eleva la presión sanguínea en las arterias. [ 1 ] La presión arterial se resume en dos mediciones , sistólica y diastólica , que dependen de si el músculo del corazón se...