Hi,
Thank you for positing your query.
I have noted the symptoms and diagnosis of your father.
Subdural hematoma, if small, is harmless. On the other hand, if it is large, it needs to be operated and hematoma should be removed.
Thalamic infarct, especially on the left side could lead to
drowsiness and semiconscious state.
The recovery depends on the size of infarct (blood clot), its location, any
brain swelling, and the age of the patient.
Generally, it may take 4-6 weeks time to see a good recovery.
I hope my answer helps. Please get back if you have any follow up queries or if you require any additional information.
Wishing you good health,
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad, India
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