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Liu Yan Hao
Neurology
About me
Graduated from Henan University of Chinese Medicine in 2011, majoring in Integrated Chinese and Western Medicine for Brain Diseases, with a master's degree. Since graduation, I have been working in clinical practice in the departments of Brain Diseases, Kidney Diseases, and Rheumatology and Immunology.
Proficient in diseases
Specializes in the diagnosis and treatment of diseases such as cerebral infarction, cerebral hemorrhage, hypertension, dizziness, headache, stroke hemiplegia, kidney disease, rheumatic immune diseases, etc. with a combination of traditional Chinese and Western medicine.
Voices
What should I do if I have a migraine attack?
Migraine attacks do not pose a significant risk to one's health. Therefore, during an attack, it is appropriate to take symptomatic oral pain relief and antiemetic medications for treatment, such as ibuprofen sustained-release capsules and metoclopramide tablets. These medications provide symptomatic relief. However, it is essential to confirm that the symptoms are due to a migraine and not conditions like cerebral hemorrhage or subarachnoid hemorrhage, which are acute cerebrovascular diseases. If it is one of these acute cerebrovascular diseases, taking these pain relievers could delay the diagnosis and treatment of the condition. Migraines are often triggered by certain foods, so it is best to avoid preserved foods, such as pickled vegetables that contain nitrates, which can trigger migraines. Other foods like cheese and red wine can also trigger migraines and should be avoided as much as possible. Additionally, it is important to rest properly, avoid staying up late, and try to reduce the frequency of migraine attacks. (Please consult a professional physician before using any medication.)
Cervical vertigo characteristics
Dizziness is a typical symptom of cervical spondylosis, usually exacerbated when the patient turns their head to one side. In a normal person, when turning the head to one side, the vertebral artery on that side might be compressed, but the opposite vertebral artery can compensate by increasing blood flow, preventing cerebral insufficiency and dizziness. Conversely, in a patient with cervical spondylosis, due to osteophyte formation or changes in the curvature of the cervical spine, the vertebral artery on one side may be compressed. When the patient turns their head to the other side, the compressed vertebral artery cannot compensate by increasing blood flow, leading to insufficient cerebral blood supply and an increase in dizziness or the onset of dizziness symptoms. This explains the characteristics and mechanism of dizziness caused by cervical spondylosis.
Symptoms of Migraine
Typical migraine attacks start with prodromal symptoms. Common prodromal symptoms include blurred vision, distorted vision, or the appearance of water-like patterns. Shortly after these symptoms disappear, headache symptoms on one side of the head appear, often accompanied by nausea and in a few cases, vomiting. These symptoms can subside completely within a few hours and can recur. The occurrence of migraines is greatly related to diet, such as pickled foods and leftovers that contain nitrates, which can trigger a migraine attack. It is best to avoid these, as well as cheese and red wine which can also trigger migraines. During a migraine attack, symptomatic oral pain relievers can be used for treatment. (Please use medication under the guidance of a professional physician.)
Can people with cerebral embolism run?
Patients with cerebral embolism can jog moderately, but walking is highly recommended. This is because the common source of the embolus in cerebral embolism patients is a mural thrombus in the heart. The common causes of mural thrombus formation include arrhythmia and atrial fibrillation. Therefore, patients with cerebral embolism, who may also have coronary artery disease, atrial fibrillation, or cardiac mural thrombus, are not well-suited for running, which is a relatively intense form of exercise. They can jog moderately, but the distance and duration should not be too long. The most recommended form of exercise is walking. Walking is the best form of exercise to prevent worsening the condition after running, and it could also exacerbate coronary artery disease conditions.
What should I do about migraines?
Patients with migraines can temporarily take oral painkillers to alleviate the symptoms, provided that it has been confirmed as a migraine attack, and not a headache caused by acute cerebrovascular diseases such as cerebral hemorrhage or subarachnoid hemorrhage. Typically, before a migraine attack, there may be an aura symptom involving changes in vision, followed by unilateral headache. These symptoms can recur, usually lasting several hours, and they can subside on their own without medication. These are the symptoms of migraines. Generally, migraines do not pose a significant health risk, so patients can temporarily treat it with symptomatic oral pain relief. During remission, it is advisable to take preventive measures such as avoiding staying up late, not overworking, and reducing the frequency of migraine attacks as much as possible.
Can people with cerebral embolism eat lamb?
Patients with cerebral embolism can appropriately eat some mutton, but not too much, as the main dietary approach is a low-salt diet. Additionally, foods high in fat should not be consumed excessively, because a common cause of cerebral embolism is the hardening of blood vessels in the neck, carotid artery plaques, especially when soft plaques break off and form emboli that block cerebral vessels through the bloodstream. Thus, consuming these high-fat foods excessively can exacerbate hyperlipidemia, worsen arterial sclerosis, and increase arterial plaque, potentially leading to the recurrence and aggravation of cerebral embolism. Therefore, patients with cerebral embolism can appropriately consume some mutton, as its fat content is not too high, but it should not be consumed in excess. Eating it in moderation is acceptable.
Can a stroke be detected through a physical examination?
Patients who have suffered a stroke can definitely be diagnosed if they undergo a head CT scan or MRI during a physical examination. Stroke is classified into hemorrhagic stroke, ischemic stroke, and tumor-induced stroke. A tumor-induced stroke is caused by a tumor, and hemorrhagic stroke includes cerebral hemorrhage and subarachnoid hemorrhage. Ischemic stroke refers to diseases such as cerebral embolism and cerebral infarction. Whether it is a hemorrhagic or ischemic lesion, over time, they tend to form a softening focus. These lesions are difficult to eliminate, and regardless of how many years have passed, these old lesions can still be seen in a head CT scan or MRI. In cases of stroke caused by brain tumors, the changes in size and location of the lesion can also be clearly seen on a head CT scan. Therefore, strokes can be diagnosed during a physical examination of the patients.
Postoperative care for subarachnoid hemorrhage
For patients recovering from subarachnoid hemorrhage, a critical aspect of care is to prevent emotional excitement and avoid any exertion initiated by the patients themselves. This includes avoiding forceful movements such as turning over or straining during bowel movements, which are not permitted. Patients must rest in bed absolutely, for four to six weeks. Therefore, during nursing, it is important to assist patients with passive movements, such as turning them over every two hours to gently pat their backs. The purpose of patting the back is to effectively prevent the occurrence of dependent pneumonia, while turning them helps prevent pressure sores. Additionally, assistance can be provided for passive limb movements and massaging the limbs, which can effectively prevent the formation of venous thrombosis in the lower or upper limbs. These are the focal points of nursing that can significantly promote the patient's recovery from their condition.
What are the types of strokes?
The common types of strokes include hemorrhagic stroke and ischemic stroke. Hemorrhagic strokes commonly involve subarachnoid hemorrhage and intracerebral hemorrhage. Subarachnoid hemorrhage often occurs due to the rupture of cerebral aneurysms, causing blood to enter the subarachnoid space. Intracerebral hemorrhage is commonly caused by hypertension leading to the rupture of cerebral blood vessels and subsequent bleeding into the brain parenchyma. Additionally, there is ischemic stroke, commonly presenting as cerebral infarction and cerebral embolism. Cerebral embolism occurs when a blood clot from another part of the body outside the brain, following the blood circulation, blocks a cerebral vessel. Cerebral infarction happens when cerebral arteriosclerosis narrows down to a certain extent, gradually obstructing and forming cerebral infarction. These are the common types of strokes.
Subarachnoid hemorrhage is caused by what?
The most common cause of subarachnoid hemorrhage is the rupture of a cerebral aneurysm. The subarachnoid space is located on the surface of the brain, surrounded by three layers of meninges: from inner to outer, they are the pia mater, arachnoid mater, and dura mater. The space between the pia mater and arachnoid mater is known as the subarachnoid space. Following the rupture of a cerebral aneurysm, blood enters this subarachnoid space, leading to hemorrhage. Subarachnoid hemorrhage is a critical condition in internal medicine, with a relatively high mortality rate. The most common cause is a cerebral aneurysm, and patients who have suffered a subarachnoid hemorrhage should undergo brain MRI and vascular imaging to check for the presence of cerebral aneurysms or vascular abnormalities. If a cerebral aneurysm is present, it needs to be treated promptly. Typical interventions include placing a coiling spring to close off the aneurysm, preventing it from rupturing and thus averting a secondary subarachnoid hemorrhage, which has a mortality rate as high as 50%. Another common cause of subarachnoid hemorrhage is brain trauma, which is also a frequent cause of this condition.