Dr. Wang Wei during a neurosurgical consultation at Shanghai Donglei Brain Hospital. (Image: Shanghai Observer)
In This Article
A Sudden Collapse: When 15 ml of Blood Threatens the Brainstem
Zhang Lei (a pseudonym), 37, had known about his high blood pressure for only six months. He took antihypertensive medication only occasionally and never monitored his blood pressure regularly. One summer day, without any obvious trigger, he suddenly found that his right side would not move. His speech became incoherent. He vomited repeatedly and rapidly lost consciousness.
After emergency transfer to Shanghai Donglei Brain Hospital, Dr. Wang Wei's team received him. His blood pressure was over 180 mmHg. An urgent head CT showed the terrifying truth: a brainstem hemorrhage of 15 ml.
"We found that Zhang Lei's cerebral hemorrhage was caused by hypertension. Long-term uncontrolled high blood pressure makes arterial walls harden and thicken, reducing elasticity. Tiny aneurysms can form at peripheral branches. When blood pressure surges, the vessels can no longer withstand the pressure and rupture."
Why the Brainstem Is the "Surgical Forbidden Zone"
The brainstem is no larger than a thumb, yet it controls breathing, heartbeat, blood pressure, and even swallowing. Located deep at the base of the brain, it consists of the medulla oblongata, pons, and midbrain — the body's true "command center for life."
For this reason, brainstem surgery has long been considered an absolute forbidden zone in neurosurgery. Every millimeter the scalpel advances can trigger catastrophic consequences: respiratory arrest, permanent paralysis, or a vegetative state. Operating here has been described as "defusing a bomb while walking a tightrope."
How Brainstem Hemorrhage Volume Guides Prognosis
- <5 ml (small): May cause facial weakness or double vision, but respiratory arrest can occur at any time due to edema.
- 5–10 ml (moderate): Already high-risk; patients often become confused, have swallowing difficulty, and require ventilator support.
- >10 ml (large): Mortality soars to 70%–90%. Survivors often remain in a vegetative state.
Millimeter Precision: The Dorsal Brainstem Approach
A brainstem hemorrhage exceeding 10 ml is, in medical terms, almost a death sentence. Faced with this situation, Dr. Wang Wei's team at Shanghai Donglei Brain Hospital acted immediately.
"Our goal was clear: remove the hematoma and relieve pressure on the brainstem," Dr. Wang explained. "But honestly, the hematoma was buried deep inside the brainstem, surrounded by dense neural 'high-voltage lines.' Conventional approaches would cross critical functional areas and easily cause secondary injury."
The team rapidly chose the dorsal brainstem approach via the inferior medullary velum as the breakthrough point. Entering through the surface closest to the hematoma, they reached the hematoma cavity and cleared the clot. "Because we often perform brainstem tumor surgery, we apply the same safe brainstem entry principles to brainstem hemorrhage patients," said Dr. Wang. "We select the route closest to the hematoma surface, which minimizes damage to the brainstem."
🧠 Why This Approach Matters
- Shortest distance: Uses the dorsal channel where the hematoma is closest to the brainstem surface.
- Microscopic guidance: Advances millimeter by millimeter under the operating microscope.
- Maximal nerve preservation: Clears the clot while protecting surrounding neural fibers.
- Reduced secondary injury: Avoids crossing major functional areas when possible.
From "Vegetative State" to Walking Independently
In the operating room, the medical team became "brainstem bomb disposal experts," choosing the dorsal channel precisely where the hematoma was closest to the surface. Under the microscope, they advanced millimeter by millimeter, completely evacuated the hematoma, and preserved the neural fibers to the greatest extent possible.
After surgery, the Donglei Brain Hospital team fought a long battle for Zhang Lei's recovery: a full week of neuro-intensive care, a stepwise intracranial-pressure reduction protocol, and multimodal neurological rehabilitation. After one month of treatment, he could communicate without difficulty, eat independently, and had recovered Grade 4 limb strength (near normal). His bowel and bladder control were fully restored.
Patient Age
Hemorrhage Volume
Over 10 ml
After One Month
Stroke Prevention: Medication, Lifestyle, and Screening
"But I was taking my blood pressure pills!" — this is the heartbreaking question many young patients ask. Zhang Lei had a six-month history of hypertension, yet he took antihypertensives only intermittently, and blood pressure monitoring was practically nonexistent.
"Long-term uncontrolled blood pressure turns vessel walls into 'crispy' tissue," Dr. Wang emphasized. "When blood pressure spikes, these vessels burst easily. Therefore, for patients with hypertension, taking medication on time is extremely important." Modern diets high in sugar, salt, and fat, irregular sleep, smoking, alcohol, and ubiquitous work stress are driving a year-on-year rise in hypertension among young people.
⚠️ Three Pillars of Stroke Prevention
- Medication discipline: Once hypertension is diagnosed, take medication regularly. Do not reduce or stop it on your own. Monitor blood pressure morning and evening; <140/90 mmHg is the safety line.
- Avoid three triggers: Emotional roller coasters (especially sudden rage); straining while holding your breath (such as severe constipation); sudden intense physical exertion.
- High-risk screening: Long-term smokers, heavy drinkers, and those with a family history of cerebrovascular disease should have an annual brain MRI plus vascular imaging (MRA) to detect hidden stroke risk factors such as aneurysms or arterial stenosis.
🏆 A Second Chance for Young Lives
Zhang Lei's case is a powerful reminder that brainstem hemorrhage is no longer only a disease of the elderly. In today's fast-paced environment, hypertension is increasingly striking people in their 30s and 40s. The difference between tragedy and recovery often comes down to one thing: whether blood pressure is controlled.
Through precise diagnosis, a daring but carefully planned dorsal brainstem approach, and intensive postoperative neurological rehabilitation, the team at Shanghai Donglei Brain Hospital turned what is usually considered a death sentence into a story of rebirth.
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