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Can TIA cause lightheadedness and fainting while on drugs for Parkinson's disease?

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Neurologist
Practicing since : 2004
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Question
I HAVE PARKINSON' DISEASE FOR 17 YEARS BUT VERY RECENTLY THINGS GOT WEIRD. I ALSO HAVE BI-POLAR DISEASE AS WELL AS OCD AND IMPULSE DISORDER. I TYPICALLY WOULD FALL 3 OR 4 TIME A WEEK AND FREEZE WHEN WALKING. IT BEE TOUGH BUT SO AM I. EALIER TODAY AT A LIBRARY I BLACED OUT OR FAINTED 2TIMES IN ABOUT 5 MINUTES. I DO NOT REMEBER FALLING .I REMEMBER OPENING MY EYES AND NOT KNOWING WHERE WAS. THE LIBRAIRIAN CALLED 911 BUT I WOULN'T GO. THE NURSES DON'T KNOW HOW IMPORTANT THE TIMELINESS OF THE P.D. DRUGS ARE. ANYWAY DO YOU THINK I COULD HAVE HAD A T.I.A.? MY BLOOD PRESSURE WAS FINE AN SO WAS MY BLOOD SUGAR. THANKS, XXXXXXX ABAT.
Mon, 23 Apr 2018 in Brain and Spine
 
 
Answered by Dr. Olsi Taka 1 hour later
Brief Answer:
TIA unlikely

Detailed Answer:
I read your question carefully and I understand your concern.

Judging from that description I do not think a TIA is the most likely cause. While TIAs can take different forms depending on the affected brain area, loss of consciousness is certainly a typical manifestation. It usually manifests with localized neurological deficits such as weakness or numbness of the limbs on one side, speech difficulties, vision loss etc, not loss of consciousness as you describe.

From your description the nature of the episode was probably that of a syncope. It is due to a generalized insufficient blood flow to the brain. There can be several causes but most common are heart related ones such as heart arrhythmias or heart valve issues. So prolonged EKG monitoring (24-48 hours Holter EKG preferable, a device which you can carry during daily activities) as well as a heart ultrasound are advised. Some routine blood tests for metabolic alterations might also be done if no heart source is found.

Another cause to be considered for the loss of consciousness would be seizures. However if no convulsive activity was seen by present witnesses during the episode it would be much less likely, to be considered only once syncope has been ruled out.

I remain at your disposal for other questions.
Above answer was peer-reviewed by
 
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