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.
Conceptually , it is useful to think of patients with hypertension as having either essential hypertension ( systemic hypertension of unknown cause ) or secondary hypertension ( hypertension that results from an underlying , identifiable , often correctable cause ) .1 Although only about 5 to 10 percent of hypertension cases are thought to result ...