[Cognitive impairment induced by digoxin intake in patients older than 65 years]

Cognitive impairment or clinical signs of dementia in an old patient who receives digoxin, should suggest a digitalis intoxication. Symptoms can be present although a normal digoxin serum concentration. It is recommended to stop the treatment to obtain a regression of dementia symptoms.

La neurosyphilis : une cause rare de démence

INTRODUCTION

Neurosyphilis had to be evoked in the face of an atypical dementia.

CASE RECORD

We describe the case of a 65-year-old man who presented with neurosyphilis suspected to precede behavioral and cognitive problems in the context of risky sexual behavior and was confirmed by serologic tests in the cerebrospinal fluid.

DISCUSSION

This case proves the necessity to investigate the possibility of neurosyphilis in subjects with dementia syndrome which does not correspond to classic etiologies.

[Paroxysmal atrioventricular block due to anticholinesterase therapy]

The authors report a case of paroxysmal syncopal complete atrioventricular block due to anticholinesterase therapy occurring after the first administration. The block was reversible. It is therefore important to exclude this cause of atrioventricular block in the elderly in view of the increasing indications of this therapy.