I'm scared and sad about my grandfather

So basically he is admitted to the hospital rn , he went to the hospital due to spinal cord pain and he was supposed to be taking a surgery but due to his age and heart issues they told us it's better if we don't opt the surgery ( I am not sure of the surgery's name )

And after 1 day of going to the hospital he got sick . Tbh idk what to do I'm staying in another country and not even nearby to him

I can't even imagine loosing him , he means a lot to me I'm scared of loosing him

He faced complications in breathing few hours back and had problems in heartbeat and rn they kept in external heartbeat support ( he have pacemaker in him )

I don't even know why am I writting this , when ever my mom get a call from India I'm scared imagining the worst

I don't wanna loose him soon