Exploding head syndrome: new observations.

BACKGROUND AND PURPOSE: The etiology of 'exploding head syndrome' (EHS) is currently highly controversial and its management is unknown. The object was to explore these. METHODS: This observational study describes my personal experience of EHS and discusses its implications. RESULTS: I experienced, while suffering from EHS, recurrent episodes of transient cardiac arrests due to sick sinus syndrome. Implantation of a cardiac pacemaker resulted in immediate, dramatic, permanent cessation of both cardiac arrest episodes and EHS. This has not been reported previously. CONCLUSIONS: This striking temporal relationship indicates a possible association between EHS and sick sinus syndrome.