What classification of hypertension is characterized by symptoms of high blood pressure due to an identifiable cause?

The classification of hypertension characterized by symptoms of high blood pressure due to an identifiable cause is secondary hypertension. This form of hypertension occurs as a result of specific, identifiable conditions or factors, such as kidney disease, hormonal disorders (like hyperaldosteronism), certain medications, or obstructive sleep apnea. Identifying the underlying cause is crucial because treating that primary condition often helps to normalize blood pressure levels.

In contrast, essential hypertension, also known as primary hypertension, has no identifiable secondary cause and is the most common form of hypertension. Malignant hypertension refers to a severe increase in blood pressure that can lead to organ damage, while refractory hypertension describes cases where blood pressure remains high despite treatment with multiple antihypertensive medications. Neither of these classifications identifies a specific underlying cause, as is the case with secondary hypertension.