The hospital authorities called him around 4am on Tuesday and said that the patient's condition was “not good”. The child did not regain consciousness after the operation.The issue might have been with the anaesthesia," said the doctor. Dr Nazmul, who administered the anaesthesia, claimed although he is a medicine specialist, he has experience in anaesthesia. Action will be taken against the hospital authorities if any negligence is found in the investigation report. Serious, long-term problems are rare, though general anaesthesia is not without the risk of death, the Mayo Clinic says.