[Cardiac pacemaker dysfunction due to rotation of the battery (reel syndrome)].

Reel syndrome is characterized by the rotation of permanent pacemaker generator on its transverse axis and electrode catheters curl around it, so this causes displacement of the electrodes with the loss of atrial and ventricular pacing. It can cause severe symptoms due to dysfunction of the pacemaker. We present three patient cases who after the placement of pacemaker attended by dysfunction of the displacement of the electrodes their clinical pictures were compatible with Reel syndrome.