Modern Paraclinical Exploration of Renovascular Arterial Hypertension

MODERN PARACLINICAL EXPLORATION OF RENOVASCULAR ARTERIAL HYPERTENSION (Abstract): Renovascular arterial hypertension (RVAHT) is a type of secondary arterial hypertension (considered the second one in terms of frequency in secondary AHT in adults), which is in a causality relation with a unior bilateral stenosis of the renal artery. The concept of RVAHT appeared with Goldblat’s experiments (1934), RVAHT being considered a clinical consequence of activation of the renin-angiotensin-aldosterone system. The prevalence of renal artery stenosis (RAS) increases with age, being seen in 7% of the individuals who are over 65 years old. Paraclinical investigations have the role to confirm the clinical suspicion (by objectifying the morphological lesion) and estimate the functional consequences of this lesion. Currently, many of these methods have maintained only their historical value, while in the forefront there are the non-invasive methods which allow a rapid and highly accurate diagnosis.