Crescentic glomerulonephritis associated with totally implantable central venous catheter-related Staphylococcus epidermidis infection.

A 59-year-old woman was admitted to our hospital for treatment of acute renal insufficiency. She had been under home intravenous hyperalimentation therapy through a totally implantable central venous catheter for 2 years because of post-radiation enteritis. Clinical examination on admission revealed severe renal insufficiency complicated with hypocomplementemia, marked proteinuria and hematuria. Chest roentgenography demonstrated moderate pulmonary congestion. Hemodialysis was initiated and her pulmonary congestion improved. On the 14th and 21st hospital day, blood culture revealed Staphylococcus epidermidis colonization. Cefazolin was administered and C-reactive protein decreased, however, renal insufficiency and hypocomplementemia did not improve. To investigate the genesis of renal insufficiency, renal biopsy was performed. Light microscopic findings of the kidney revealed severe crescentic glomerulonephritis complicated with moderate tubulointerstitial damage. Immunofluorescence-microscopic findings of the kidney revealed positive IgG, IgM, C3 deposition along the capillary lumen. From these laboratory findings and the clinical course, we diagnosed her renal disease as crescentic glomerulonephritis induced by catheter-related bloodstream infection, and the central venous catheter was removed. After removal, urinary output and hypocomplementemia remarkably improved, however, unfortunately, her renal dysfunction did not improve and maintenance hemodialysis needed to be continued. Although her renal disease was not caused by ventriculo-atrial shunt but by central venous catheter-related bloodstream infection, we supposed that the pathogenesis was a closely similar entity to shunt nephritis.