Hi Doctors, My mother had a problem in her heart so we consult a cardiologist he suggest us to go for double valve replacement and we went for it. After completing her operation in 10 days time she is having severe headache and had a CT scan on her head, the report shown a small leak of blood clotted in her side walls of brain,they said it is normal and in a weeks time it went to a difficult situations like unconsciousness . So then it went as emergency case and she had subdural haemorrhage (burr hole operation) and it was successful but doctor(Neuro-suregon) remind us that it would be comeback on her, we are monitoring her PT/INR value which we are maintaining 2.0-3.0 range..we did a MRI scan in 4 months time after the operation and the neurologist said everything is fine and asked us maintain that value ..and we are maintaining that range but what happened in 3 months time is that she is no more..she is healthy on that day the PT/INR value is still 2.55 range..it all happened in 4-5 hours for the first time in her life she got Seizures (fits) on that day we couldn t save her .... My main worry is what was i would like to know the reason for this and you could write a research paper on this type of cases so that in future no one s mom/dad need to die like this. If you are interested to send me the answer you can mail me to YYYY@YYYY