The dual chamber leadless pacemaker (IMAGE) University of California - Davis Health Caption The dual chamber leadless pacemaker uses leading-edge technology to treat people with abnormal or slow heart rhythms. Credit UC Davis Health Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.