Natasha Richardson Dies of Epidural Hematoma
New York City Medical Examiner Issues Report on Cause of Death
March 19, 2009 -- The seemingly mild head injury that
killed actress Natasha Richardson was an epidural hematoma, the New York
City medical examiner's office announced today.
The death was ruled an accident. Richardson was reported to have slipped and
fallen while taking a skiing lesson at a Canadian resort. Although she is said
to have appeared unhurt, she later developed a headache and was taken by
ambulance to a hospital.
That's entirely consistent with the diagnosis of epidural hematoma, says
Eugene Flamm, MD, chairman of neurosurgery at Montefiore Medical Center and
Albert Einstein College of Medicine, New York.
"It is a common syndrome where someone gets hit on the head, seems fine,
and then falls down unconscious," Flamm tells WebMD. "It takes that
much time for the pressure to build up on the brain."
The dura is the membrane between the brain and the skull. If blood
collects in the area in between, it presses harder and harder against the
brain. Eventually it causes herniation: the whole brain shifts.
"When something large makes the brain shift, the blood supply gets cut
off and the whole brain dies," Flamm says.
Flamm did not examine Richardson, and he is quick to note that his comments
on her case are speculation based on media reports. But Flamm has treated many
patients with similar case histories.
"If someone has a significant-size epidural hematoma that you can see on
a CAT scan, you would operate and remove it," he says. "Sometimes you
see a smaller one, and I don't operate. But that is rare -- I usually operate
because of the potential for the brain moving and putting pressure on a vital
From media reports, Flamm speculates that Richardson was already brain dead
by the time she reached a local hospital -- well before she was flown to New
Despite Richardson's death, Flamm notes that an epidural hematoma is not
always fatal and may not even cause lasting brain damage.
"It all depends on how severe the neurological problem is at the time of
surgery," he says. "If a patient is deeply comatose, it is more serious
than if the symptom is just sleepiness or pain on the side of the head. If
there has not been a lot of brain damage, there can be full recovery."