The Phase Gate Review methodology improves project effectiveness by reviewing all stages of the project from the initial selection process through the entire process of development to the final stages of closure.
Idiopathic hypertension redirects here. For the condition of raised blood pressure within the skull, see Idiopathic intracranial hypertension. Essential hypertension (also called primary hypertension or idiopathic hypertension) is the form of hypertension that by definition has no identifiable cause.
Essential hypertension is a major risk factor for cardiovascular disease and is one of the main causes for congestive heart failure, stroke, and renal disease in Western societies. Despite intensive research in this field, the exact etiology of essential hypertension is still unknown.