Not always : Ischemic event, lack of flow and o2 to an organ, can occur in 3 ways: embolic, thromboembolic and thrombotic. Clot forming in the leg or any way along the venous way to the rt. Atrium can lodge at the pulm artery an pulm embolism happen. Around 20% of the population can have a pfo and clot move to the brain from the right atrium. Atrial fib and CHF can create a clot at the left side and go brain.
Answered 6/10/2014
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