title: Charge levels in programmable pacemakers.
abstract: The method of calculation of charge in one series of programmable pacemakers is described. Accurate charge tables are constructed and examples of their use are given. With the tables the margin between the threshold and the pacemaker setting can be more precisely determined and consequently, at least in some cases, it can be reduced for greater pacemaker longevity.
mesh_terms: D004553:Electric Conductivity; D010138:Pacemaker, Artificial