Is it dangerous to have a high fever with brainstem hemorrhage?

Written by Tang Li Li
Neurology
Updated on May 20, 2025
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Brainstem hemorrhage is dangerous if accompanied by high fever. Brainstem hemorrhage itself is a severe disease, and patients often experience disturbances of consciousness, coma, and paralysis of limbs. The hemorrhage can damage the center that regulates body temperature, leading to central fever. After falling into a coma, patients may encounter problems with expectoration and swallowing, which can easily lead to aspiration pneumonia and hypostatic pneumonia. Infections can also cause high fever. Patients need to use diuretics to reduce intracranial pressure, but excessive dehydration can also lead to dehydration fever. High fever exacerbates the consumption of the patient's body, increasing the physical burden and potentially leading to multiple organ failure. It is necessary to control the fever as soon as possible, using both physical cooling methods and medication.

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Written by Li Qiang
Intensive Care Unit
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Does it take five years to recover from brainstem hemorrhage?

The recovery period after a brainstem hemorrhage generally refers to the acute stage immediately following the bleeding, which is also the period at risk for rebleeding. This high-risk period typically lasts one to two days. Afterwards, there is a phase of brainstem edema, lasting about 14 days, generally around 7 to 10 days, and usually resolves after two weeks. As the bleeding slowly gets absorbed over time, it typically does not take 5 years. If the bleeding is being absorbed, this usually only takes a few weeks. Once the absorption of the bleed stabilizes, the patient's condition generally becomes relatively stable. If the patient has not woken up, the likeliness of waking up several weeks later is very low. If the patient does wake up, it usually happens within about two weeks, or the bleeding may have been very minor, possibly not even causing unconsciousness. Therefore, if it has been five years and the patient's state of consciousness has not recovered, the likelihood of recovery is extremely minimal, and it is unlikely that there will be any change.

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Written by Jiang Fang Shuai
Neurosurgery
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Is brainstem hemorrhage serious?

Brainstem hemorrhage is caused by the rupture of small blood vessels in the brainstem, with common causes including hypertension, cerebral arteriosclerosis, vascular degeneration, and microaneurysms of vessels. Clinically, it manifests as sudden onset of consciousness impairment, confusion, coma or deep coma, accompanied by disorders of limb sensory and motor functions, eye movement disorders, and unstable vital signs, among others. If the hemorrhage occurs in the medulla, it can cause death by stopping the patient's heartbeat and breathing within a short period. Brainstem hemorrhage is a severe condition in neurology, and treatment focuses on bed rest to stop bleeding, reducing intracranial pressure, and treating complications. Despite advances in modern medicine, medical professionals often find themselves powerless in the face of many patients with brainstem hemorrhage. For brainstem hemorrhages with more than three milliliters of blood, most patients ultimately succumb to the condition. Therefore, brainstem hemorrhage is a very serious disease with a very high mortality rate in clinical settings.

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Written by Gao Yi Shen
Neurosurgery
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The acute phase of brainstem hemorrhage lasts for several days.

The acute phase of brainstem hemorrhage generally lasts about two to three weeks, or 14 to 21 days, but it also needs to be specifically assessed based on the different conditions of the patient. If the hemorrhage in the brainstem is relatively severe and located in an important functional area, then the critical period may be appropriately extended. For example, if the hemorrhage is in the medulla oblongata and has already caused respiratory and circulatory failure, as well as unstable vital signs and a comatose state, then the critical period could even reach about one to two months, because it is often necessary to use a ventilator to assist breathing, and the patient's comatose state does not allow for full consciousness. However, for some brainstem hemorrhages, such as a small hemorrhage in the pons that only causes the clinical symptom of headache in the patient, the critical period is generally no more than two weeks. Thus, each patient's condition is different.

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Written by Zhang Hui
Neurology
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What will happen with brainstem hemorrhage?

Brainstem hemorrhage is a very dangerous disease because the structure of the brainstem is so crucial. It contains the life centers responsible for breathing and heartbeat, as well as sensory and motor nerve fibers passing through it. If the brainstem hemorrhage is severe and the amount of bleeding is large, the patient may experience paralysis of the limbs, swallowing dysfunction, and choking on water, among other symptoms. If the condition worsens, it can lead to coma, persistent high fever, and even death. Patients with minor brainstem hemorrhages may exhibit symptoms such as dizziness, nausea, vomiting, numbness in the limbs, and paralysis. Generally, brainstem hemorrhages are caused by hypertension, which must be well controlled.

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Written by Shu Zhi Qiang
Neurosurgery
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Is it right to give up treatment for brainstem hemorrhage?

Brainstem hemorrhage discontinuing treatment could be appropriate in some cases. If the patient has extensive brainstem hemorrhage, particularly at the lower end of the brainstem, and has resulted in deep coma without response to any stimuli, with a Glasgow Coma Scale score of only 3, dilated pupils on both sides without any pupillary light reflex, and possibly no spontaneous breathing, the patient could be considered brain dead. According to international practice, treatment should not be pursued for patients who are brain dead, hence discontinuing treatment is appropriate for such patients. If the patient still has spontaneous breathing, then active resuscitation should be pursued, otherwise, it might be considered inhumane.