True death in Islam?

[Majid Katme]

 
 
 
TRUE DEATH IN ISLAM:
 
Dear learned colleagues,
 
AA
 
As far as we know in Islam :
                - True Death is when the SOUL leave the body
                -True Death is when there are 7 signs in the body when true natural death did occur according to a Hadith
                 -True Death  is when there is no recovery from " brain stem death" and one is back to life?
 
IN BRAIN STEM DEATH  WHICH IS CONSIDERED TRUE DEATH IN ISLAM BY MUFTIS AND ULAMAS in some fatawas:
All the above 3 facts do not occur?
Can we still consider  islamically : Brain Stem death is TRUE DEATH  ?
 
I like to learn from my colleagues and hear their opinions as I have very little knowledge in this subject  and I am not a Mufti or qualified Ethicist!
 
Thank you
 
WS
 
Dr Abdul Majid Katme