Seven patients are reported with meningitis due to viridans streptococ
ci. These patients represented 5% of culture-proven cases of bacterial
meningitis in adults participating in a prospective multicentre clini
cal trial evaluating the use of dexamethasone. Meningitis was iatrogen
ic in three patients: one patient had been treated with endoscopic scl
erotherapy for oesophageal varices, and two patients had undergone the
rmocoagulation of the gasserian ganglion for trigeminal neuralgia in t
he previous days.