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Causes of transient ischemic attacks

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June 8th, 2010
I have low cholesterol both bad & good are under 50 & a varing pulse rate mostly low 41 to 58. recently i have been suffering several Transient ischemic attacks. could there be a causial relationship? I have had ct scans & mri's done to my head which showed no problems & am awaiting results from a full spinal Mri & carotid artery ultrasound.


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replied June 11th, 2010
General Q and A Answer A13033
Hi and welcome to the forum! I am glad that I can help you.

You want to know the cause of the transient ischemic attacks.

Transient ischemic attacks appear when the brain has a sudden lowered blood supply. In certain individuals the brain gets used to getting a decreased blood supply, but other individuals respond with a transient ischemic attack to the decreased blood supply. This condition usually appears as a result of intraluminal stricture of the carotid arteries due to atherosclerosis or as a result of constriction of the blood vessels such as the basilar artery. Atherosclerosis may or may not be accompanied with increased levels of cholesterol and triglycerides.

Given the data that you described, you may experience transient ischemic attacks due to atherosclerisis of the carotid artery. Quit smoking because it can accelerate the formation of atheromatous plaques. If the obstruction in the carotid arteries is a rather high percentage stemming from the lumen see a vascular surgeon for removal of the atheromatous plaque.

Please keep in mind that I provide medical information only. I am not able to diagnose medical conditions online. Please contact your doctor for further advice and information about diagnosis and treatment options.


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