Pre-symptoms of brainstem hemorrhage

Written by Zhang Hui
Neurology
Updated on November 27, 2024
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Brainstem hemorrhage is extremely dangerous, and once a massive hemorrhage occurs, the patient can quickly lose consciousness and generally there are no effective emergency measures available. The patient will quickly die due to the involvement of the centers controlling heartbeat and breathing. The early symptoms of brainstem hemorrhage are not particularly obvious, but a careful medical history may reveal that patients often experience excessive fatigue, stress, emotional agitation, and poor sleep before the hemorrhage. Patients may show early signs such as dizziness, blurred vision, double vision, limb weakness, and slurred speech. If a patient has very high blood pressure and exhibits these early symptoms, especially if there is discomfort in the neck and upper back area, it is crucial to be highly vigilant and seek immediate medical attention. The prognosis for brainstem hemorrhage is very poor, thus it is essential to focus on preventive measures and properly control blood pressure.

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Written by Tang Li Li
Neurology
1min 31sec home-news-image

What causes fever from brainstem hemorrhage?

Patients with brainstem hemorrhage experience fever generally for the following three reasons: First, infection. Patients with brainstem hemorrhage often have disturbances of consciousness and dysfunction of the throat, and are bedridden, which frequently leads to aspiration pneumonia and hypostatic pneumonia. This is due to weakened ability to clear phlegm, as well as choking caused by saliva and feeding. Additionally, infections can easily occur in the gastrointestinal tract, urinary tract, and from skin pressure sores. Second, abnormalities in the temperature set point cause central hyperthermia. In patients with brainstem hemorrhage, the temperature regulation center is damaged. If the temperature regulating center sets the body temperature above 38 degrees Celsius, it often persists and cannot be reduced, and medications are poorly effective in lowering the temperature, necessitating the use of ice packs for physical cooling. Third, patients with brainstem hemorrhage often use large doses of diuretics. Dehydration after diuretic use can put patients in a state of excessive dehydration. If rehydration therapy is not adequately managed, dehydration fever can easily occur.

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Written by Zhang Hui
Neurology
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How long does it take to wake up from a brainstem hemorrhage?

Brainstem hemorrhage is a very serious condition. If the amount of bleeding in the brainstem increases, the patient will rapidly become comatose and exhibit symptoms such as paralysis of the limbs, inability to swallow, and inability to speak. Generally, if a patient with brainstem hemorrhage falls into a coma and cranial CT confirms a large amount of bleeding in the brainstem, the chances of the patient waking up are very, very slim. If the amount of brainstem hemorrhage is not particularly large and the patient's level of coma is not very deep, treatment may lead to the patient waking up, which could take about two to four weeks. However, the prognosis for brainstem hemorrhage is generally poor, and if the patient falls into a coma, they are usually unlikely to wake up. The treatment for brainstem hemorrhage mainly involves controlling blood pressure and preventing complications. If respiratory failure occurs, timely treatment with a ventilator is necessary. Overall, brainstem hemorrhage has a poor prognosis and high costs.

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Written by Chen Yu Fei
Neurosurgery
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Brainstem hemorrhage is what?

There are many causes of brainstem hemorrhage, and clinically, it is mostly considered to be caused by hypertensive cerebral hemorrhage. Patients have a history of hypertension and have not received regular and effective antihypertensive treatment, leading to suboptimal blood pressure control. Excessively high blood pressure often results in the weakening or even disappearance of the patient's own vascular regulatory functions. Under certain triggering factors, such as fatigue, exhaustion, mental stress, or overly intense emotions, the blood pressure within the vessels may exceed their own regulatory capabilities, making bleeding more likely. If the bleeding occurs in the brainstem, it manifests as a brainstem hemorrhage. In some patients, brainstem hemorrhages are caused by conditions like cavernous angiomas, aneurysms, or arteriovenous malformations.

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Written by Chen Yu Fei
Neurosurgery
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How long does it take for the fever to subside after a brainstem hemorrhage?

For patients with brainstem hemorrhage, it is common to develop high fever after the bleeding, where the body temperature often exceeds 38.5℃. There are many reasons for the occurrence of high fever. It can be considered that the presence of an intracerebral hematoma compresses the hypothalamic temperature set point, causing abnormalities in the set point function and leading to central fever, with temperatures often reaching 39℃ or even higher than 40℃. At this time, the use of antipyretic drugs alone generally has poor therapeutic effect. It often requires the effective absorption of the intracerebral hematoma for the body temperature to gradually return to normal. Another situation, considering the occurrence of pulmonary infection, it is necessary to promptly provide patients with antibiotics for effective treatment. When the pulmonary infection is effectively controlled, the body temperature will also gradually decrease.

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Written by Li Qiang
Intensive Care Unit
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Is vomiting severe in brainstem hemorrhage?

Vomiting after brainstem hemorrhage is definitely a serious matter because if the vomiting is caused by a brain-related issue, it is due to increased intracranial pressure. This type of vomiting is characterized as projectile vomiting, which is one of the three major signs of increased intracranial pressure. If the brainstem hemorrhage is extensive, it may cause local stimulation leading to cerebral vascular spasm, or issues such as obstructed brain circulation resulting in increased intracranial pressure and hydrocephalus. This increase in intracranial pressure, especially if prolonged, can lead to brain herniation, which is particularly deadly if it compresses the brainstem. Therefore, this is a very urgent and serious condition that requires immediate attention. Of course, if the vomiting is solely due to other reasons such as gastric retention or improper feeding, that would be a different matter. Projectile vomiting caused by increased intracranial pressure is highly severe.