Prevention is essential
Among patients with ICH, much of the bleeding occurs before presentation at the hospital, Louis R. Caplan, MD, a neurologist at Beth Israel Deaconess Medical Center, Boston, said in an interview. Furthermore, the bleeding mainly occurs in the deep part of the brain where most of the important motor tracts are. “If those tracts are already hit, a little extra blood isn’t going to change things,” said Dr. Caplan, who was not involved in the research.
In addition, blood is pushed from inside the brain to the periphery until the pressure outside the brain is equal to the pressure inside it. “You can decrease the amount of bleeding significantly, but it probably doesn’t affect the outcome,” said Dr. Caplan.
One factor in patients’ apparent lack of functional improvement is that the mRS is not sensitive to minor changes in disability, he said. “You have to show a pretty important change for it to make a difference,” said Dr. Caplan.
In addition, recovery from a hemorrhage takes much longer than recovery from an infarct. Examining the population at 6 months would have been preferable to examining them at 90 days, but the investigators might not have 6-month data, said Dr. Caplan.
“The main thing is really prevention,” he concluded.
The study was conducted with funding from Takeda. Dr. Anderson reported receiving funding from the National Health and Medical Research Council of Australia and speaker fees from Takeda. Dr. Caplan has disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.