Table 3.

Pacemaker-therapy: randomized trials

Author, year	Trial	n	Design	Follow-up period (yr)	Endpoint	P
Conolly et al[65], 1999	VPS I	54	No placebo	1	Syncope recurrence	< 0.001
Sutton et al[66], 2000	VASIS	42	No placebo	3.7	Syncope recurrence	< 0.001
Ammirati et al[67], 2001	SYDIT	93	No placebo	1.5	Syncope recurrence	0.004
Conolly et al[68], 2003	VPS II	100	Placebo	0.5	Syncope recurrence	NS
Raviele et al[69], 2004	SYNPACE	29	Placebo	2 yr	Syncope recurrence	NS

NS: Not significant.