Question

I am writing a thesis. How should I find the handbook (or professional sources) for the causes and treatments of brain death?

Is it true that there is no unified treatment for avoiding brain death (I mean there is no unified treatment for brain tumours and so on)? Different hospitals have different methods?

Answer 1

I am writing a thesis. How should I find the handbook (or professional sources) for the causes and treatments of brain death?

The following source should help you find other related ones:
Wijdicks E. F. M., Varelas P. N., Gronseth G. S., Greer M. D., 2010, Evidence-based guideline update: Determining brain death in adults: Report of the Quality Standards Subcommittee of the American Academy of Neurology

Is it true that there is no unified treatment for avoiding brain death (I mean there is no unified treatment for brain tumors and so on)? Different hospitals have different methods?

Brain death does not have any treatment. It is an irreversible loss of brain functions. No hospitals have any methods to treat brain death.
Other brain-related injuries such as a tumor, have a standard procedure. But, it is on a case basis and the stage of tumor - radiotherapy is the most sought-after treatment to kill cancerous cells.