Central nervous system nocardiosis in Queensland: A report of 20 cases and review of the literature

Medicine (Baltimore). 2016 Nov;95(46):e5255. doi: 10.1097/MD.0000000000005255.

Abstract

Nocardia infection of the central nervous system (CNS) is an uncommon but clinically important disease, often occurring in immunocompromised individuals and carrying a high mortality rate. We present 20 cases of microbiologically proven CNS nocardiosis diagnosed in Queensland from 1997 to 2015 and review the literature from 1997 to 2016.Over 50% of cases occurred in immunocompromised individuals, with corticosteroid use posing a particularly significant risk factor. Nine (45%) patients were immunocompetent and 3 had no comorbidities at time of diagnosis. Nocardia farcinica was the most frequently isolated species (8/20) and resistance to trimethoprim-sulfamethoxazole (TMP-SMX) was found in 2 isolates. Overall, 35% of our patients died within 1 year, with the majority of deaths occurring in the first month following diagnosis. Interestingly, of the 7 deaths occurring at 1 year, 6 were attributed to N farcinica with the seventh isolate being unspeciated, suggesting the virulence of the N farcinica strain.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Central Nervous System Bacterial Infections* / diagnosis
  • Central Nervous System Bacterial Infections* / drug therapy
  • Female
  • Humans
  • Male
  • Middle Aged
  • Nocardia Infections* / diagnosis
  • Nocardia Infections* / drug therapy
  • Queensland
  • Retrospective Studies