The difference between hypertensive emergency and hypertensive encephalopathy.

Written by Li Qiang
Intensive Care Unit
Updated on May 12, 2025
00:00
00:00

The so-called hypertensive emergency is a condition where blood pressure rises very quickly, reaching a very high level in a short period of time. At this time, it does not necessarily lead to hypertensive encephalopathy, which is a more dangerous condition. Hypertensive encephalopathy indicates that due to the rapid rise in blood pressure, the pressure in the brain's blood vessels becomes excessively high. This pressure causes cerebral edema. At this point, because the blood pressure is higher than the brain's perfusion pressure, the brain becomes swollen, which is extremely dangerous. If the swelling is severe, it may lead to brain herniation, which can be fatal. Therefore, relatively speaking, hypertensive encephalopathy is much more serious than a hypertensive emergency and represents a dangerous stage of progression within a hypertensive crisis. Thus, hypertensive encephalopathy is a very dangerous condition and is one of the most critical manifestations within a hypertensive emergency.

Other Voices

doctor image
home-news-image
Written by Chen Tian Hua
Cardiology
45sec home-news-image

Is high diastolic pressure considered high blood pressure?

If the diastolic blood pressure exceeds 90 mmHg, hypertension should also be considered. Patients with a high diastolic blood pressure who do not actively undergo hypotensive treatment can suffer long-term damage to target organs such as the heart, brain, and kidneys, as well as severe hypertensive complications. For patients with high diastolic blood pressure, it is also necessary to adopt effective lifestyle adjustments and choose clinically frontline antihypertensive drugs for long-term treatment. Only by effectively controlling elevated diastolic pressure in the long term can severe target organ damage and hypertensive complications be avoided, thus improving the clinical prognosis for patients with hypertension.

doctor image
home-news-image
Written by Zhang Lu
Obstetrics
1min 1sec home-news-image

What is the blood pressure for gestational hypertension?

Pregnancy-induced hypertension refers to a series of pathophysiological changes caused by elevated blood pressure in women during pregnancy. It is a severe complication of pregnancy that can have serious effects on both the mother and the fetus. The diagnostic standard for hypertension during pregnancy is the same as in non-pregnant periods, that is, a blood pressure greater than 140/90mmHg can be diagnosed as pregnancy-induced hypertension. However, pregnancy-induced hypertension can be classified based on whether it is combined with other conditions, as well as the severity of the condition. Depending on the severity, pregnancy-induced hypertension can be divided into categories such as gestational hypertension, pre-eclampsia, eclampsia, chronic hypertension, and chronic hypertension with superimposed pre-eclampsia. These classifications are mainly based on the severity of the condition, and it is essential to treat pregnancy-induced hypertension with standardized care.

doctor image
home-news-image
Written by Liu Ying
Cardiology
1min 4sec home-news-image

How to lower high blood pressure?

Hypertension is divided into primary hypertension and secondary hypertension. If it is secondary hypertension, removing the factors that cause high blood pressure can cure it. For example, if the hypertension is caused by an adrenal tumor, removing the tumor can normalize blood pressure. However, if diagnosed with primary hypertension, lifelong medication is required. There are many types of medications available, which need to be specifically analyzed based on the individual situation. If the patient primarily has high systolic pressure, it is recommended to use some calcium channel blockers, which are commonly used for elderly patients who primarily exhibit high systolic pressure. If it is primarily high diastolic pressure, some ACE inhibitors or ARBs are suggested. If sympathetic excitement is predominant, some β-blockers can be used. (Medication should be taken under the guidance of a professional doctor.)

doctor image
home-news-image
Written by Zhao Li Li
Obstetrics
50sec home-news-image

Causes of pregnancy-induced hypertension

There are many reasons that can lead to the occurrence of hypertensive disorders during pregnancy. Normally, due to reasons related to the mother herself or being under the age of 18 or over 35, the risk of developing hypertensive disorders during pregnancy may increase. Additionally, dietary and environmental influences such as a high-salt diet, excessive fatigue, and mental stress can lead to the development of pregnancy-induced hypertension. In some cases, after the development of pregnancy-induced hypertension, it may trigger diseases in other organ systems, leading to severe issues with the placenta, causing complications such as placental abruption, hypoalbuminemia, and cerebrovascular accidents.

doctor image
home-news-image
Written by Zhang Yue Mei
Cardiology
57sec home-news-image

How to treat high blood pressure?

Hypertension is a common and frequently occurring disease in clinical practice. Hypertension can cause certain damage to the body, especially long-term hypertension which can lead to cardiovascular and cerebrovascular diseases. It is necessary to adjust the dietary structure, paying attention to a low-fat and low-salt diet. Meanwhile, according to the severity of the blood pressure, effective antihypertensive drugs should be used under the guidance of a doctor to adjust the blood pressure within the normal range, avoiding serious damage to the cardiovascular and cerebrovascular systems, and also engaging in aerobic exercise. Mild hypertension patients can lower their blood pressure to the normal range through dietary adjustments and aerobic exercises.