The significance of high and low mean arterial pressure

The level of mean arterial pressure reflects the function of the human heart and the resistance status of peripheral major arteries.

Mean arterial pressure (MAP) refers to the average value of arterial blood pressure over one cardiac cycle, with a normal range of 70 mmHg to 105 mmHg. By assessing the level of MAP, we can evaluate cardiac function and the resistance encountered by peripheral arteries. If MAP is too low—below 70 mmHg—it may reduce blood supply to organs, leading to inadequate perfusion of vital organs such as the brain and heart. Conversely, if MAP is too high—above 105 mmHg—it increases the workload on the heart and blood vessels, potentially causing compensatory cardiac hypertrophy, impaired heart function, and even heart failure. Prolonged exposure to high pressure can induce pathological changes in the vessel walls and may lead to vessel rupture, resulting in serious complications such as cerebral hemorrhage.

Patients with abnormal mean arterial pressure should promptly seek treatment at the cardiology department of a reputable hospital. In daily life, they should maintain a balanced diet, ensure adequate rest, and avoid staying up late.