It's important to stick to the recommendations, ie. not lift above shoulder height or bend across the front. BUT equally important to keep movement within possible range. I had a wire dislodged in the first night (was not put in right in the first place, so not down to movement) but then I was so cautious about not moving that I developed a blood cloth in the arm. It's a balance but the advice generally given at discharge is helpful or also I found advice on thr Pcaemaker Club forum useful.
I don't recall bending my arm when eating. I would usually treat my left arm as if it wasn't there to avoid dislodging the wires ..but saying that...it is absolutely vital to move it less than shoulder height every day using the exercise sheet the hospital should have hopefully provided which guides you through recommended movements for each week of recovery.I was a bit overcautious I think which meant by the time I was allowed to loft myarm above my shoulder after 6 weeks, my arm just wouldn't go as it had stiffened up..but it did eventually and I'm now back weight lifting.
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Intro
Post AVR 3 & 1/2 weeks, Atrial Fibrillation 
CAD and OMT/STATINS
Pain under arm pit area following by pass surgery.
Wrong medication sorted
