How many milliliters of brainstem hemorrhage are fatal?

Written by Gao Yi Shen

Neurosurgery

Updated on February 08, 2025

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Brainstem hemorrhage does not have a specific volume that can be fatal; the brainstem is the central hub for respiration and circulation in the human body, including the medulla, midbrain, and pons. For the pons and midbrain, a hemorrhage of five milliliters can be fatal. For the medulla, which is very narrow and densely packed with neural tissue, even one milliliter of bleeding can suddenly cause the patient's respiration and circulation to stop. Therefore, even one milliliter of brainstem hemorrhage is an immeasurable loss, and brainstem hemorrhages should be classified as critically severe. Immediate hospitalization and treatment are crucial to achieve a relatively better prognosis.

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Written by Zhang Hui

Neurology

1min 6sec

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What should not be eaten in case of brainstem hemorrhage?

Firstly, patients with brainstem hemorrhage should avoid eating foods that are difficult to digest. This is because these patients can easily develop acute gastric mucosal lesions, leading to decreased gastrointestinal function. If they consume harder foods, it could increase the burden on their digestive function, which is detrimental to recovery. Secondly, patients with brainstem hemorrhage should also avoid cold items, such as drinking cold beverages or eating ice cream, as these can easily cause diarrhea. Thirdly, patients with brainstem hemorrhage should not eat overly salty foods, such as pickles, salted meat, salted fish, and so on. These items can cause an increase in blood pressure, potentially exacerbating the brainstem hemorrhage. Fourthly, avoid overly greasy foods as they can increase blood lipids, which is also unfavorable for the recovery from a brainstem hemorrhage. Fifthly, patients with brainstem hemorrhage should not smoke or drink alcohol, as these have no beneficial effect on their condition and could instead accelerate the progression of the disease.

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Written by Gao Yi Shen

Neurosurgery

52sec

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How long does it take for a brainstem hemorrhage clot to be absorbed?

In general, the absorption time for a brainstem hemorrhage clot is around two to three weeks. During this period, several phases must be passed, with the two main ones being the rebleeding phase and the brain swelling phase. Rebleeding often occurs within three days after the initial bleeding. If not treated promptly during this time, it can easily lead to further brainstem hemorrhage, increasing the size of the clot and hindering the later absorption process. The second phase is the peak of brain swelling and vasospasm. During this phase, certain substances released during the absorption of blood vessels and clots can cause swelling and spasms of the surrounding tissues. If this phase is also safely navigated, then subsequent absorption tends to be relatively quicker. However, complete absorption generally requires at least two to three weeks.

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Written by Gao Yi Shen

Neurosurgery

42sec

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How many milliliters of brainstem hemorrhage are fatal?

Brainstem hemorrhage does not have a specific volume that can be fatal; the brainstem is the central hub for respiration and circulation in the human body, including the medulla, midbrain, and pons. For the pons and midbrain, a hemorrhage of five milliliters can be fatal. For the medulla, which is very narrow and densely packed with neural tissue, even one milliliter of bleeding can suddenly cause the patient's respiration and circulation to stop. Therefore, even one milliliter of brainstem hemorrhage is an immeasurable loss, and brainstem hemorrhages should be classified as critically severe. Immediate hospitalization and treatment are crucial to achieve a relatively better prognosis.

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Written by Gao Yi Shen

Neurosurgery

54sec

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How long do you have to stay in the ICU for a brainstem hemorrhage?

The length of stay in the ICU for brainstem hemorrhage depends entirely on the patient's specific condition. Generally, as long as the patient's breathing is stable and they can breathe on their own, and all other vital signs are relatively stable, they can be transferred out of the ICU. However, this depends on the patient's condition at the time. Many patients are admitted to the ICU typically due to poor breathing and lack of autonomous respiration. If a ventilator is used and the results improve, they may then be transferred out. Some may be out in a week, while others may need one to two months. It is also crucial to determine whether they have developed ventilator-associated pneumonia, lower limb venous thrombosis, or other more severe clinical manifestations, so decisions should be made based on these conditions for accuracy.

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Written by Jiang Fang Shuai

Neurosurgery

1min 10sec

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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.