My grandfather is in Hospice care and they turned off his ICD last night, because he d had well over 30 heart attacks/episodes yesterday. They told us it would completely stop working after 12 hours, and that he would probably pass away in his sleep last night. He is still alive, but we aren t sure what to expect now. What normally happens after the device is deactivated? Are we actually looking at days or weeks still, or were the doctors correct to say last night, and he is just holding on a little longer? We are trying to prepare ourselves and family, but are confused about what happens after a device is turned off like that.