A man made a remarkably strong recovery after a knife penetrated his eye and brain, traveling through the skull along a “dramatic intracranial trajectory.” Although postoperative scans showed bleeding, swelling, and air along the surgical path, he was breathing without assistance the next day, recovered from temporary right-sided weakness within 2 days, and was later discharged in “good neurological condition.”
The man was transferred to intensive care, where he recovered rapidly. Doctors removed his breathing tube the day after surgery. He developed some weakness on his right side, but it resolved after 2 days.
Follow-up brain scans showed steady improvement. They revealed some bleeding and swelling, as well as air remaining in the brain tissue along the path where the knife had entered. Otherwise, the injury appeared to be healing. He did not develop an infection or seizures.
Despite the “dramatic intracranial trajectory,” his language function was preserved, and he experienced no loss of movement or coordination, the researchers reported. He was discharged from the hospital and found to be in “good neurological condition” at a follow-up appointment. Doctors continued to monitor his vision and mental health.
A fortunate recovery
Doctors still do not know how the injury happened. “The mechanism is unknown,” they wrote. They noted, however, that the man had a history of depression.
The researchers emphasized how fortunate the man was to survive and recover so fully. Injuries that penetrate the eye or brain are rare. When they occur, they are usually caused by a “velocity mechanism,” such as gunfire or another ballistic injury. Knives, sticks, and nails are considered rarer “slow mechanisms.”
“Such low-velocity penetrating brain injuries result in significant morbidity and mortality due to hemorrhage, vascular injury, abscesses, meningitis, cerebrospinal fluid leaks, seizures, and neurological deficits,” the researchers wrote.
Such a favorable outcome is not without precedent. The researchers cited other surprising recoveries from apparently catastrophic brain injuries, including the case of Phineas Gage, a railroad superintendent who survived an 1848 accident in which a large iron rod passed through his head. The rod entered beneath his left cheekbone and exited through the top of his skull.
Gage survived and recovered, although his personality was reportedly altered after the accident. The doctors treating the knife injury did not report any comparable personality change. The researchers also cited a case involving a nail-gun injury.
“This mirrors the classic and contemporary cases of severe frontal lobe penetration with unexpectedly preserved neurological function, as reported by Phineas Gage [and a] nail gun injury,” the doctors concluded. “This case highlights that the outcome may depend less on external severity and more on the precise trajectory in relation to important vascular, cortical and subcortical structures.”
Source: arstechnica.com
