Can a deed that grants a life tenancy to one of the grantors and his spouse, be revoked?

All parties are still living, however the spouse (88) is now in an Alzheimer care home and is not expected to return home. Meanwhile, the grantor, who reserved a life tenancy for himself, wishes to go to a senior home (he is 97). Grantor husband wants to revoke the life estate granted to himself and his spouse, is there a deed that can accomplish this. There is another person with power of attorney for the spouse with Alzheimer's. That person has no interest in the property.