How many milliliters of brainstem hemorrhage are fatal?

Written by Gao Yi Shen

Neurosurgery

Updated on February 08, 2025

00:00

00:00

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.

Other Voices

home-news-image

Written by Tang Ying

Physical Medicine and Rehabilitation

1min 50sec

home-news-image

How to exercise swallowing after a brainstem hemorrhage

Patients with brainstem hemorrhage often have critical conditions. Therefore, after stabilizing their condition, their swallowing function is usually severely impaired. During swallowing training, besides the common use of medications and acupuncture treatment, professional swallowing therapists in a formal rehabilitation medicine department conduct training on swallowing functions. Before starting swallowing training, an accurate assessment of swallowing function is typically conducted first. Swallowing disorders are divided into four stages: the preparatory stage, the oral stage, the pharyngeal stage, and the esophageal stage. In the preparatory stage, coordinating the consistency of the food can aid the patient's swallowing. Proper stimulation of the oral and pharyngeal muscles, including stimulation of the tongue and pharyngeal wall muscles, cold therapy, tongue pressure training, and training of the muscles around the mouth, are used to help restore swallowing function. During the esophageal stage, when the patient's condition has stabilized, videofluoroscopic swallow study can be carried out to assess specific issues in the esophageal stage, which are often related to cricopharyngeal dysfunction. Esophageal dilation with a balloon may also be used. With these accurate assessments and appropriate training, the swallowing function of patients generally shows significant improvement. Therefore, when patients experience these swallowing dysfunctions, it is best to seek treatment from a formal rehabilitation medicine department for better care.

home-news-image

Written by Huang Lei

Physical Medicine and Rehabilitation

1min 3sec

home-news-image

How to rehabilitate through exercise after brainstem hemorrhage

Regarding the specific measures for rehabilitation exercises for brainstem hemorrhage, it is necessary to analyze specific problems based on the different conditions of the patients. Based on our past experience, several common symptoms of brainstem hemorrhage can be addressed with corresponding rehabilitation measures. The first one is swallowing disorder, which is very common in patients with brainstem hemorrhage. We can provide patients with electrical stimulation and ice stimulation, and teach them morning exercises such as cheek puffing, tongue stretching, and dry swallowing practices. The second common issue is articulation disorder, for which we can teach patients some speech training. Usually, we can prepare patients with rhythm, cadence, and deep breathing exercises for speech training. The third is the dysfunction of limb mobility. For specific activities, we need to conduct training, including some balance function training.

home-news-image

Written by Tang Ying

Physical Medicine and Rehabilitation

1min 6sec

home-news-image

How long is the edema period for brainstem hemorrhage?

The edema phase of the brain stem generally lasts for two to three weeks, with the peak of swelling occurring around seven to ten days. For some patients, the swelling completely subsides nearly a month later. Only after the peak of the swelling has passed can patients be out of life-threatening danger. As the swelling gradually subsides, the patient's consciousness, vital signs, limb movements, eating, and other symptoms will also gradually improve. Once patients get through the swelling phase, we can start early bedside rehabilitation as soon as possible. In addition to using some drugs that nourish brain nerves, passive limb movements, proper limb positioning, early exercise, and acupuncture can all be started early to accelerate the patient's early rehabilitation and prevent complications such as muscle atrophy, relaxation, and dependent pneumonia, which can be improved early on.

home-news-image

Written by Li Qiang

Intensive Care Unit

50sec

home-news-image

Why does gastric bleeding also occur when there is bleeding in the brainstem?

This brainstem hemorrhage, as well as other severe cranial traumas or cerebral hemorrhages, if they cause a severe intracranial hypertension, will lead to a condition called stress ulcer, commonly known as Cushing's ulcer. This occurs because the increased intracranial pressure causes ischemia and hypoxia in the gastric mucosa, which then leads to localized, extensive necrosis of the gastric mucosa, resulting in upper gastrointestinal bleeding. This includes brainstem hemorrhages and many other cranial injuries and cerebral hemorrhages with intracranial hypertension as a very common complication. Therefore, it is due to the local ischemia of the gastric mucosa caused by increased intracranial pressure, leading to bleeding caused by gastric acid corrosion.

home-news-image

Written by Jiang Fang Shuai

Neurosurgery

56sec

home-news-image

How long does one generally remain unconscious with brainstem hemorrhage?

The duration of coma following brainstem hemorrhage is uncertain. It mainly depends on two factors: The first factor is the amount of bleeding. For brainstem hemorrhages of less than three milliliters, the level of coma is relatively shallow, and some patients may not experience any coma at all, with a high chance of successful resuscitation. For hemorrhages greater than three milliliters, as the amount of bleeding increases, the depth of the patient's coma also deepens, potentially leading to death shortly after the onset of the condition, or the patient might remain comatose for a prolonged period before eventually succumbing. The second factor is whether timely and effective treatment was administered after the brainstem hemorrhage, including medication, necessary surgical interventions, active prevention of complications, and the stabilization of the condition, as well as treatments aimed at promoting awakening, among others.