A clustering of epidural abscesses in chronic hemodialysis patients

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Abstract
The objective of this study was to investigate factors that might increase the risk of epidural abscesses in hemodialysis patients. The charts of all hemodialysis patients presenting with an epidural abscess over a period of 5 yr at Duke University Hospital and the Durham Veterans Administration Medical Center were reviewed for patient demographics, months on dialysis, vascular access, recently treated infections, signs and symptoms at presentation, and results of any surgical intervention. Ten patients developed an epidural abscess during a 5-yr period. Severe, debilitating back pain was the only consistent initial complaint. Eight patients had dual-lumen intravenous catheters for hemodialysis access, and five patients had or were receiving parenteral antibiotics for catheter salvage. There were no consistent physical, clinical, or laboratory findings. Surgical drainage of the abscess with removal of the hemodialysis catheters and parenteral antibiotics were required for cure in six patients. It was concluded that attempts at catheter salvage with parenteral antibiotics has significant risks for complications. Hemodialysis patients with recently treated or ongoing bacteremia who complain about severe and debilitating back pain with or without neurologic findings should raise the suspicion of an occult epidural abscess.

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