An infrequent etiology of Infective Endocarditis

Indian J Med Microbiol. 2021 Oct-Dec;39(4):540-541. doi: 10.1016/j.ijmmb.2021.09.009. Epub 2021 Sep 25.

Abstract

Abiotrophia. defectiva is an infrequent but an important cause of infectious endocarditis (IE). IE caused by A. defectiva may actually be more common than what is reported in the literature because of its failure to grown on routine media like blood agar and MacConkey agar, besides difficulty in its identification by conventional methods. IE by A. defectiva generally have more fulminant course and is associated with higher mortality and morbidity due to frequent embolic episodes and valvular tissue destruction. Ceftriaxone or vancomycin in combination with gentamicin and surgical replacement of valve is the recommended management.

Keywords: Abiotrophia defectiva; Infective endocarditis.

MeSH terms

  • Abiotrophia*
  • Agar
  • Anti-Bacterial Agents / therapeutic use
  • Endocarditis, Bacterial* / diagnosis
  • Endocarditis, Bacterial* / drug therapy
  • Gram-Positive Bacterial Infections* / diagnosis
  • Gram-Positive Bacterial Infections* / drug therapy
  • Humans

Substances

  • Anti-Bacterial Agents
  • Agar

Supplementary concepts

  • Abiotrophia defectiva