Hi,
Based on the information here is what I think happened.
1) Due to heavy narcotics for the lumbar
back pain it lead to decrease the
respiratory rate (leading to acidosis due to co2 excess)
2) No iv fluid did the damage to renal tubules leading to
renal failure from drug insult, as well as less fluid supply to flush kidney, and leading to a low PH in blood.
so from (1) and (2) it lead to "Acute acidosis with renal failure"
Now (3) acute acidosis with renal failure - may lead to the "ATRIAL- FIBRILLATION"
Their after (4) A-fib- - created a
embolism of blood clot / fatty products mixed with blood, and blocked the artery supplying the
frontal lobe leading to
(5) infarct on to frontal part of brain.
Now if we see and consider steps from 1-5 in a sequential order it may give the result describe in the question.
(NOTE :-This is for knowledge only, you must not use my opinion for medico legal issues.)
Hope it helps.
Dr.JAY PATEL.