Emergency treatment for high blood pressure

Written by Zhang Yue Mei

Cardiology

Updated on September 17, 2024

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Hypertension is currently a common and frequent disease, especially among middle-aged and elderly people. It requires the use of proper antihypertensive drugs to lower blood pressure back to a normal range to ensure the blood supply to the heart and brain. If medication is not taken on time, or due to emotional excitement or excessive fatigue, there can be a sudden increase in blood pressure. Immediate use of effective antihypertensive drugs is necessary to lower the blood pressure to a safe range to prevent accidents. In case of a hypertensive emergency, one should go to the hospital for active treatment to avoid life-threatening risks.

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Written by Zhang Yue Mei

Cardiology

40sec

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What to eat for high blood pressure

Patients with hypertension need to regularly take antihypertensive medication to bring their blood pressure within the normal range. In daily life, dietary adjustments should be made, avoiding foods high in fats such as fatty meat from animals, offal, fried foods, and sweets. Instead, consume more vegetables high in dietary fiber, vitamins, and trace minerals. Suitable vegetables for people with hypertension include celery, spinach, mung bean sprouts, black fungus, water chestnuts, onions, carrots, winter melon, and Chinese cabbage.

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Written by Li Qiang

Intensive Care Unit

1min 31sec

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Difference between hypertensive encephalopathy and malignant hypertension

The difference between hypertensive encephalopathy and malignant hypertension can be discerned from their names, indicating they are different conditions. Hypertensive encephalopathy refers to a condition where blood pressure rises sharply in a short period, with diastolic pressure exceeding 120 mmHg and systolic pressure exceeding 200 mmHg. This dramatic increase in blood pressure causes cerebral vasospasm and increased cerebral perfusion pressure, leading to various manifestations of cerebral edema, primarily severe headache, nausea, vomiting, seizures, and even brain herniation. The emphasis is on the rapid rise in blood pressure over a short term and its impact on the brain, specifically cerebral edema. Malignant hypertension also involves a rapid increase in blood pressure to extremely high levels over a short period. However, the focus of malignant hypertension is on the impact on multiple organs throughout the body, including the brain, but also severely affecting the heart, potentially causing acute left heart failure and pulmonary edema. In the kidneys, it can lead to acute renal failure, characterized by reduced urine output or anuria. Thus, malignant hypertension emphasizes the effects on multiple vital organs, whereas hypertensive encephalopathy focuses primarily on the impact on the brain and central nervous system. Hence, there are some distinctions between the two conditions.

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Written by Tang Li

Cardiology

1min 10sec

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What is hypertension?

Hypertension is characterized by elevated arterial blood pressure in the systemic circulation, and may be accompanied by functional or organic damage to organs such as the heart, brain, and kidneys. Hypertension can be divided into primary hypertension and secondary hypertension. Secondary hypertension is due to certain identified causes or etiologies, leading to increased blood pressure, accounting for about 5% of all hypertension cases. Conditions like primary aldosteronism, pheochromocytoma, renovascular hypertension, and renin-secreting tumors are examples, and cases where the cause of increased blood pressure cannot be found are also referred to as primary hypertension and hypertensive disease. Currently, the classification and standard for blood pressure in China mostly use a systolic pressure of greater than or equal to 140 mmHg and/or a diastolic pressure of greater than or equal to 90 mmHg.

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Written by Wei Shi Liang

Intensive Care Unit

52sec

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How to deal with hypertensive emergencies

Hypertensive emergency is characterized by a significant increase in blood pressure, often with diastolic pressure greater than 130 mmHg. Target organs including the brain, eyes, heart, and kidneys are severely compromised or fail. Hypertensive emergencies require admission to the CCU for cardiac monitoring and the use of intravenous antihypertensives. In the initial one to two hours, the reduction in blood pressure should not exceed 25% of the peak value. Control blood pressure within two to six hours and stabilize it at 160/100 mmHg. Commonly used antihypertensive drugs include sodium nitroprusside and nitroglycerin, while avoiding the use of nifedipine-like drugs for blood pressure reduction.

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Written by Wang Ji Zhong

Internal Medicine

56sec

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The difference between hypertensive crisis and hypertensive encephalopathy

Both hypertensive encephalopathy and hypertensive crisis involve a rapid increase in blood pressure, symptoms of headache, restlessness, nausea and vomiting, palpitations, shortness of breath, and blurred vision, with systolic pressure increasing to 200 mmHg and diastolic pressure to 120 mmHg, typically presenting similar clinical blood pressure readings. The main difference between the two is that hypertensive encephalopathy is based on excessively high blood pressure in patients with severe hypertension. Furthermore, hypertensive encephalopathy can lead to clinical signs of cerebral edema and increased intracranial pressure, whereas hypertensive crisis occurs when blood pressure suddenly rises over a short period, causing symptoms due to excessive secretion of catecholamines driven by increased sympathetic nervous excitement.