I am very sorry to learn about your very difficult family situation. Schizophrenia affects not only the individual with the disorder but often their family members as well. Some believe that it is, in many regards, a family disease.
The idea of electroconvulsive therapy (ECT) is frightening to many people. In addition, seeing pictures or videos of individuals undergoing such treatments can be very disconcerting. On that basis, many people and families will simply refuse the treatment. This is unfortunate because in some cases, ECT can be very effective. Some people claim that it has saved their lives.
I think you are on the right track. I would encourage you to continue to educate yourself about schizophrenia and its various treatment approaches.
I would also encourage you to speak to your brother’s doctor. Perhaps he can provide an explanation that helps you and your family better understand why he has recommended ECT. If every other treatment has failed, then your family may want to consider ECT for your brother.
It would also be advantageous to receive a second opinion. A second opinion could provide you and your family with the much needed information about how best to proceed.
At this point, it seems as though you are still in the information gathering process. You may not have enough information at this time to make an informed decision. Continue gathering information before making a final decision.
I hope this helps. Please consider writing back and letting me know the outcome of the situation. I wish you the best. Please take care.