Death in hospital after stroke

I can't find the research listed but  these researchers need to read research on the neuronal cascade of death.  Stupidity rules.
http://www.newsfix.ca/2013/11/22/death-in-hospital-after-stroke/
A study looks at the factors that influence death in the hospital after a stroke.
Treatment with clot-busting drugs such as tissue plasminogen activator (tPA) is now accepted to be a good way of treating an acute stroke. Nevertheless, some patients having this treatment still die in hospital. Researchers at the University of Muenster, Germany, have been looking at the factors which influence the outcome for patients having tPA treatment for stroke.
They looked at 1,628 patients admitted with acute stroke in Germany during 2000 and 2002. Of those who were treated with tPA, ten per cent died while in hospital – with around two thirds of the deaths occurring within seven days of admission. The factors affecting the risk of death were older age and altered level of consciousness on admission. And the researchers also noted that the more experience the hospital had in using tPA, the less the risk of in-hospital death after treatment. The researchers say that those who are most at risk of death, even after clot-busting treatment for stroke, will need to be given extra attention in hospital.