Prevalence of positive carotid sinus massage and related risk of syncope in patients with Alzheimer's disease.

Aims: The prevalence of positive carotid sinus massage (CSM) in asymptomatic elderly persons and related risk of syncope are poorly known.

Methods And Results: We examined the ability of CSM to predict the risk of profound bradycardia or syncope in 30 patients with Alzheimer's disease (AD) and no history of syncope, before treatment with cholinesterase inhibitors. Carotid sinus massage was repeated at 1, 2 and 8 months after onset of cholinergic therapy.

High risk of adrenal insufficiency after a single articular steroid injection in athletes.

Purpose: To determine whether a single intra- or periarticular injection of corticosteroid for posttraumatic or microtraumatic articular injuries in young healthy subjects can induce a biological suppression of hypothalamo-pituitary-adrenal axis activity and reactivity.

Methods: Ten healthy young male athletes (aged 28.8 +/- 2.