HIV-Related Cerebral Toxoplasmosis Revisited: Current Concepts and Controversies of an Old Disease

J Int Assoc Provid AIDS Care. 2019 Jan-Dec:18:2325958219867315. doi: 10.1177/2325958219867315.

Abstract

Cerebral toxoplasmosis is the most common cause of expansive brain lesions in people living with HIV/AIDS (PLWHA) and continues to cause high morbidity and mortality. The most frequent characteristics are focal subacute neurological deficits and ring-enhancing brain lesions in the basal ganglia, but the spectrum of clinical and neuroradiological manifestations is broad. Early initiation of antitoxoplasma therapy is an important feature of the diagnostic approach of expansive brain lesions in PLWHA. Pyrimethamine-based regimens and trimethoprim-sulfamethoxazole (TMP-SMX) seem to present similar efficacy, but TMP-SMX shows potential practical advantages. The immune reconstitution inflammatory syndrome is uncommon in cerebral toxoplasmosis, and we now have more effective, safe, and friendly combined antiretroviral therapy (cART) options. As a consequence of these 2 variables, the initiation of cART can be performed within 2 weeks after initiation of antitoxoplasma therapy. Herein, we will review historical and current concepts of epidemiology, diagnosis, and treatment of HIV-related cerebral toxoplasmosis.

Keywords: acquired immunodeficiency syndrome; central nervous system; cerebral toxoplasmosis; toxoplasmic encephalitis; toxoplasmosis.

Publication types

  • Review

MeSH terms

  • Anti-Retroviral Agents / therapeutic use
  • Antiprotozoal Agents / therapeutic use
  • Brain / drug effects
  • Brain / parasitology*
  • Brain / pathology
  • HIV Infections / complications*
  • HIV Infections / drug therapy
  • HIV Infections / parasitology
  • Humans
  • Immune Reconstitution Inflammatory Syndrome
  • Toxoplasmosis, Cerebral / diagnosis
  • Toxoplasmosis, Cerebral / drug therapy
  • Toxoplasmosis, Cerebral / virology*
  • Trimethoprim, Sulfamethoxazole Drug Combination / therapeutic use

Substances

  • Anti-Retroviral Agents
  • Antiprotozoal Agents
  • Trimethoprim, Sulfamethoxazole Drug Combination