Intermittent output failure of a VVI device due to the disintegration of the generator.

The metal case and the header of a Biovallees Coralite 247 pacemaker fell apart in a patient resulting in syncope due to myopotential inhibition. Upon recalling our patients with that type of device, we found a similar technological failure in 12 of 16 of them. This finding warrants a consideration for recalling that Biovallees device.