Patients over 100 years of age with implanted cardiac pacemakers.

Ten patients of the authors' practice who have survived to be 100 years of age or more have had an implanted pacemaker for an average of 11.4 years. As the life expectancy of the country (Uruguay) is 75 years, their survival is considered to be unusual, confirming the statistical conclusion that patient survival with an implanted pacemaker may be expected to be as good or better than those who do not require a pacemaker implant.

Self-anchoring electrode for implantable pacemakers.

The writers describe a self-anchoring monopolar electrode for use in implantable pacemakers, intended to prevent migration. The device was implanted in 63 patients observed for 36 months, and results are considered very favorable.