Atrial fibrillation and dementia: results from the Sao Paulo ageing & health study.

Background: Atrial fibrillation (AF) is a controversial risk factor for dementia.

Objective: The objective of this study was to assess the association between AF and dementia in the "Sao Paulo Ageing & Health" (SPAH) study participants.

Methods: SPAH is a cross-sectional, population-based study of elderly people living in a deprived neighborhood in Sao Paulo, Brazil.

Chronic meningococcemia: a rare presentation of meningococcal disease: case report.

Chronic meningococcemia is a rare clinical presentation within the spectrum of infections due to , which was first described in 1902. It is defined as a chronic and benign meningococcal bacteremia without meningeal signs or symptoms with at least one week's duration, characterized by intermittent or continuous fever, polymorphic cutaneous rash, and migratory arthropathy. The incidence is believed to be around 1:200,000 inhabitants.