How long can somebody survive if
their brainstem is gone? I know nothing about this type of nursing as I was only a care home nurse. What are the processes involved in keeping his heart beating?
Firstly, you were not ONLY a care home Nurse! X
It takes a looottt. It's only done in situations where family are waiting for other members to arrive and say good bye, the family just need an extra day or so, or the patient is donating their organs and the matches etc are being sorted out (usually 48hrs absolute maximum).
Firstly, A & B, you have to ventilate the patient as their brainstem is gone so they cannot breathe or initiate breaths for themselves. So everything that comes along with ventilation. Clearing secretions, chest care, managing how much oxygen/CO2 etc goes in and out.
C, supporting everything cardiovascular wise. Making a patient breathe will of course initiate some cardiac response but it'll need to be backed up by medications such as inotropes/vasopressors which after a while are pretty nasty to your body. They will be being titrated regularly. Turning someone, adjusting someone's O2, anything, can affect their BP meaning they need more/less medication. Also temperature needs managing. And then things like potassium, sodium, bicarb, blood, everything.
D, if you are brainstem dead you are GCS 3, no response at all. You might still have 'flickers' so maybe a toe jerk or what looks like a spasm but this usually stops after a day or so.
E, skin will become mottled and vulnerable. Pressure sores, skin breaking down, etc.
F, kidneys will begin to fail so clearing toxins will become difficult and fluid won't shift as it should. Won't produce as much urine etc.
G, need feeding via a tube in nose/stomach, but this is usually stopped as their isn't any 'point' but I imagine in this case the family aren't allowing it to stop. Bowels will stop working, stomach will stop absorbing the liquid feed.
I, lots of infection as the body just can't fight anything any more. Not sure if they're giving antibiotics, there isn't any point in doing so (sorry to sound so harsh) but again I imagine the family won't allow anyone not to.
P, unsure if anyone can feel pain at this point but obviously as humans you like to think people can, so pain relief is often given as a kindness. So that's something.
Just awful really. X
Sorry, super quick explanation and I definitely missed loads out.