What is a stroke?

Written by Zhang Hui
Neurology
Updated on November 24, 2024
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The English term for 脑卒中 is stroke, which generally refers to a group of cerebrovascular diseases. These diseases often onset acutely and mainly consist of two types. The first type is ischemic stroke, which includes diseases like cerebral thrombosis, watershed infarction, cerebral infarction, and cerebral embolism. The second type is hemorrhagic stroke, which primarily includes cerebral hemorrhage and subarachnoid hemorrhage among other bleeding-related disorders. Regardless of the type, the onset of stroke is very sudden, and patients rapidly develop severe neurological deficits. For example, a patient may experience sudden slurred speech, paralysis of one side of the body, or numbness and weakness on one side. There will inevitably be obvious symptoms like dizziness, headache, nausea, vomiting, and stiffness of the neck. If a stroke is suspected, it is crucial to rush to the hospital immediately. Doctors will make an accurate diagnosis and provide appropriate treatment based on the patient's medical history and cranial CT scans.

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Written by Tang Bo
Neurology
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What are the symptoms of a stroke?

Stroke, also commonly referred to as cerebrovascular accident, is caused by the rupture or blockage of blood vessels within the skull, leading to necrosis of brain tissue and a series of symptoms. It is divided into ischemic stroke and hemorrhagic stroke. Ischemic stroke, commonly known as cerebral infarction or stroke, while hemorrhagic stroke refers to cerebral hemorrhage. Generally, ischemic strokes account for 80% of cases. Ischemic stroke is caused by blockage of blood vessels leading to necrosis of brain tissue, presenting with a series of symptoms such as hemiplegic numbness. Cerebral hemorrhage results from rupture of brain blood vessels causing damage to brain cells and symptoms of compression, and may also present with symptoms such as hemiplegic numbness. Both types can be differentiated by their symptoms, and can also be definitively diagnosed through a CT scan.

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Written by Tang Ying
Physical Medicine and Rehabilitation
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What does "brain stroke dnt" mean?

The term "DNT" refers to the time from when an acute stroke patient arrives at the hospital to the start of intravenous thrombolytic treatment. Both domestic and international guidelines recommend the DNT to be within 60 minutes—the earlier, the better. This standard was established by the National Health and Family Planning Commission. The time it takes for pre-hospital emergency care and in-hospital medication administration is approximately 60 minutes each. It is only by improving the time from pre-hospital treatment to medication administration within this golden window that we can enhance the patient's survival rate, prognosis, and quality of life, while minimizing disability rates.

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Written by Tang Bo
Neurology
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Common clinical manifestations of stroke

Stroke includes ischemic stroke and hemorrhagic stroke, also known as cerebral infarction and cerebral hemorrhage. The clinical manifestations of cerebral infarction depend on the location of the occlusion, and may vary accordingly. Common symptoms include slurred speech and limb weakness. It generally occurs acutely, and may also include memory decline or a series of other symptoms depending on the specific location of the occlusion. If these symptoms occur, it is crucial to seek medical attention immediately, as there is an opportunity for thrombolytic treatment within 4.5 hours. In the case of cerebral hemorrhage, patients may experience symptoms during physical activity, possibly accompanied by severe headaches, as well as symptoms of neurological deficits such as unclear speech, limb weakness, or other symptoms. Seizures may also occur. It is essential to visit the hospital immediately if these symptoms appear. If cerebral hemorrhage is confirmed, the decision for surgical treatment depends on the amount of bleeding.

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Written by Zhang Hui
Neurology
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What is good to eat after a stroke?

Stroke primarily refers to cerebrovascular diseases, among which cerebral infarction has the highest incidence rate. Regarding diet after experiencing a cerebral infarction, it mainly falls into two categories: The first category is medications. If it is a cerebral thrombosis, it is crucial to strictly control blood pressure and blood sugar using appropriate medications. Additionally, it is necessary to take medications to prevent the recurrence of thrombosis. These medications primarily include antiplatelet agents and drugs that regulate blood lipids to stabilize plaques. Furthermore, traditional Chinese medicines that invigorate the blood and remove stasis can also be used. These medicines also help to improve blood circulation. In terms of diet, it is essential to follow a low-salt, low-fat diet, avoid overly greasy foods, and eat plenty of fresh vegetables and fruits regularly. High-quality proteins should also be included, such as drinking milk and eating beef. Whole grains should not be omitted to ensure a balanced diet and promote recovery.

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Written by Tang Ying
Physical Medicine and Rehabilitation
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Treatment of urinary retention in stroke patients

In cases of urinary retention after a stroke, some patients experience this due to psychological factors, concerns, and the sudden need to remain in bed, making it difficult to urinate in bed since they cannot stand or squat. Therefore, the first step is to alleviate psychological factors, provide patient communication and counseling, and perform massages around the navel and abdomen, along with heat treatments, to help patients urinate on their own. In a second scenario, where the patient's condition is severe or even comatose, and they have difficulty urinating, a catheter can be placed. It's important to first try to rule out a urinary tract infection, collect a midstream urine sample for analysis, and ensure the catheter is not left in longer than necessary. Once the patient's condition improves or they regain consciousness, the catheter should be removed promptly to avoid any urinary tract infections.