How long a patient with cerebral infarction can live in a coma varies according to the condition of each patient. If the patient is at an advanced age and has poor underlying disease and cardiopulmonary failure, the survival time is within 1 week or 1 month if the patient is in a coma from a cerebral infarction. If the patient has serious complications, such as emergency ulcers or serious lung infections, the survival time becomes shorter, for example, within 1 month. Some patients are younger, have better cardiopulmonary function, and have no remaining complications such as severe pneumonia, emergency ulcers, and acute myocardial infarction, the survival time will be longer, some patients will survive for 2-3 years, and some patients will survive for 10 years or longer and behave as a vegetative state.