It is not uncommon to have small, old infarcts as people get older.The important thing to do if these are seen is secondary prevention, meaning modifying risk factors to prevent future infarcts. This sounds like it is already taking place through the measurement of her HbA1c and lipid profile.As to whether anything is done about the existing vessel narrowing will depend on her particular case and where in the world you are and should be discussed with her team.
My mother has undergone an MRI brain without contract as she was suffering from double vision, major headaches, fatigue, imbalance, and frequent of coordination. The MRI scan consequently showed a small 7x4 mm nonspecific focal area of white matter high signal change seen on T2 and FLAIR sequences in the left centrum semiovale. The neurologist then advised to undergo a CT contrast scan alongside a lipid panel test to infer on the MRI findings.As per the CT scan, below were the findings:Atherosclerotic changesOcclusion of the right vertebral artery at the origin, partial visualization of the cervical segment, retrograde filling of the distal V4 segment and PICASignificant narrowing of the left PCA distal P2 and P3 segmentMild narrowing of the proximal right ICA about 40%.Right A1 segment is congenitally absent, the rest of the right ACA is hypoplasticThe lipid panel test showed the following:Lipid panel-LDL 3.34, total cholesterol 5.61Momentarily, the neurologist has requested a HBA1C and liver function exam, in addition to the echocardiogram and a 24-hour blood pressure monitoring from cardiology standpoint. He has concluded that the previous MRI reported a lesion suggestive of old ischemic infarct.I am looking for advice regarding the next viable steps as the healthcare from the country I am currently in is not up to par/adequate. I am extremely distressed and worried about this case as my father has suffered from a hemorrhagic brain stroke 12 years ago and cannot lose another parent as a result of a medical condition. I am the sole carer of both my parents who works 10 hours a day. Please advise me.