My sister had a stroke 2 years ago and lost her speech.  On friday she was in hospital for a replacement knee op. After the op she was in recovery and had a heart attack.  They have put her in an induced coma and are bringing her around today, how long does it usually take please.  She had Spinal Aneasthetic and was fine after op having a cup of tea
Howell come to ChatDoctorI really appreciate your concern, in such case prognosis is entirely depending upon the coma score and that can only be judged with clinical examination and over all clinical condition here no clinical findings are given, so it is a bit difficult to say anything comatose condition is very uncertain patient may remain in vegetative state for long time over all what type of and which part of brain is damaged is matter of concern, I would suggest discussing this with treating medical team or neurologist hope this information helps.