1. Other factors, i.e. a renomedullary antihypertensive principle or hypervolemia, do not play any significant role in the acceleration of arterial hypertension.

2. Hypotension in Anesthetized patients •It is defined as a MAP over 100 mm Hg •The most common causes: light anesthetic depth, pain, vasoconstriction, hypervolemia (fluid overload), hypercapnia; several disease states like pheochromocytoma, pulmonic stenosis, heartworm disease, and hyperthyroidism