One millimetre of mercury equals exactly 133.322 pascals. Defined as pressure from 1mm high mercury column with specific density. One millimetre of mercury is approximately 1 torr. Can be divided into 1000 micrometres of mercury
Vasodilation is the widening of blood vessels through smooth muscle relaxation. Blood vessel walls consist of endothelial tissue, smooth muscle layers, and adventitia. Sympathetic nervous system maintains semi-constricted vessel state
CVP is blood pressure in venae cavae near right atrium. Normal values range from 4 to 12 cm H2O. Can be measured from sternum (0-14 cm H2O) or midaxillary line (8-15 cm H2O)
MAP is the average blood pressure during a single cardiac cycle. Normal MAP is approximately 90 mmHg. MAP can be calculated by adding pulse pressure to diastolic pressure
ICH is sudden bleeding into brain tissues or ventricles. Intraparenchymal hemorrhage occurs within brain parenchyma. Intraventricular hemorrhage affects cerebrospinal fluid production
1.28 billion adults worldwide have hypertension, mostly in low- and middle-income countries. Only 42% of diagnosed hypertension patients receive treatment. Global target is to reduce hypertension prevalence by 33% by 2030