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CASE REPORTS
JOURNAL ARTICLE
Complex regional pain syndrome following transfemoral catheterization.
Journal of Invasive Cardiology 2011 November
Complex regional pain syndrome (CRPS) (previously reflex sympathetic dystrophy) is a chronic pain condition usually resulting as a consequence of trauma or surgery. Though described occasionally after vascular surgery, it is distinctly rare after percutaneous cardiovascular procedures. We report a case of CRPS following trans- femoral catheterization-related groin pseudoaneurysm. To our knowledge, this is the first such report following transfemoral catheterization. A 36-year-old female underwent an electrophysiological study and AV node re-entry tachycardia ablation using the left femoral vein approach. One month later she presented complaining of numbness and tingling in her left foot with swelling and mild groin discomfort. A lower extremity duplex scan showed a left common femoral artery pseudoaneurysm that was partially thrombosed and subsequently resolved spontaneously. The patient had intractable symptoms of pain, temperature changes, color changes, and trophic changes of the left foot. Conventional angiography was done to rule out occlusive arterial disease but just showed very sluggish flow. Further evaluation with transcutaneous oxymetry and 3-phase bone scan was consistent with microvascular dysfunction and poor cutaneous blood flow suggestive of cold-type CRPS. In this case report, we also review the clinical features and the vascular changes associated with CRPS and discuss the pathophysiology of the syndrome from a cardiovascular specialist's perspective. Interventionalists should be aware that CRPS is a possible, albeit rare, condition that may follow many vascular procedures that they perform on a daily basis.
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