title: [The functional efficiency of cardiac pacemakers as affected by ionizing radiation].
abstract: Influence of functions of cardiac pace-makers by ionizing radiation are represented, that is characterized in praxis relevant parameters as pulse duration and sensitivity in a special clear manner. For these parameters dose limits were defined in a phantom where tolerance ranges of pace-makers, guaranteed by producer, were over or underdosed. These dose values were different in dependence of installed electronic wiring diagrams. The radioresistance of pace-makers with Lewicki-wiring diagram (MCP 211 L) was higher than those with wiring diagram U 115. Measurings showed that the upper dose limits were greater than the known values with 60Co- and 9-MV-roentgen braking radiation and with that the complete programming and functional capacity of the pace-makers were conserved. The close cooperation of radiologists, physicists, cardiologists and technicians in the implantation clinic guarantees a good care for patients with pace-makers during radiotherapy without complications.
authors.affiliation: Strahlentherapieabteilung, Medizinische Akademie Carl Gustav Carus, Dresden.
authors.forename: H
authors.initials: H
authors.lastname: Röthig
authors.forename: D
authors.initials: D
authors.lastname: Wiedemann
authors.forename: T
authors.initials: T
authors.lastname: Herrmann
authors.forename: G
authors.initials: G
authors.lastname: Burk
mesh_terms: D006801:Humans; D010138:Pacemaker, Artificial; D011830:Radiation Effects
vernacular_title: Untersuchungen zur Funktionstüchtigkeit von Herzschrittmachern unter dem Einfluss ionisierender Strahlung.