As a medical professional with expertise in neurology and legal medicine, I can provide you with a comprehensive answer to your question. In many jurisdictions around the world, brain death is legally considered as equivalent to death. The concept of brain death is based on the irreversible cessation of all functions of the entire brain, including the brainstem. This determination is made through a combination of clinical examination, diagnostic tests, and in some cases, confirmatory tests like an apnea test or cerebral blood flow studies. The World Brain Death Project and the World Health Organization (WHO) have established guidelines that help standardize the diagnosis of brain death across different countries. The legal recognition of brain death is important because it allows for the removal of life support, organ donation, and the allocation of resources to other patients. However, it is important to note that there are cultural, religious, and legal differences that can affect how brain death is perceived and treated. In some countries, cardiac death with the cessation of the heart and lungs is the only legally recognized form of death. Therefore, the legal status of brain death can vary. read more >>

The three essential findings in brain death are coma, absence of brainstem reflexes, and apnoea. An evaluation for brain death should be considered in patients who have suffered a massive, irreversible brain injury of identifiable cause. A patient determined to be brain dead is legally and clinically dead.read more >>