The authors present a work intended to assess the effects of lumbar sympathectomy using radioactive microspheres. These contain 99mTe and are injected into the femoral artery. The distribution of radioactivity is then measured at the lower limb with a gamma camera linked to a computer. Seventeen patients were tested before and after lumbar sympathectomy. It appears from this short series that lumbar sympathectomy causes a redistribution of the radioactive material directed towards the extremities, mainly the feet.
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