The tree itself was donated to the city by the Magnifica ComunitÃ  di Val di Fiemme, a collective that manages the forests and pastures of an alpine valley in the Trentino region. â
Uncontrolled hypertension is defined by the American Heart Association (AHA) as blood pressure greater than 140/90 mm Hg (millimeters of mercury).
A hypertensive crisis is a severe increase in blood pressure that can lead to a stroke. Extremely high blood pressure â a top number (systolic pressure) of 180 millimeters of mercury (mm Hg) or higher or a bottom number (diastolic pressure) of 120 mm Hg or higher â damages blood vessels.They become inflamed and may leak fluid or blood. As a result, the heart may not be able to pump blood effectively.n an urgent hypertensive crisis, your blood pressure is extremely high, but your doctor doesn't suspect you have any damage to your organs. In an emergency hypertensive crisis, your blood pressure is extremely high and has caused damage to your organs.