title: [Study of the cumulative survival of 1,697 cardiac pacemakers. Superiority of the totally hermetically sealed apparatus].
abstract: A comparison of the "cumulative survival" of 1073 totally sealed cardiac pacemakers with that of 624 unsealed models showed the marked superiority of the former group. Calculation of the "cumulative survival" is not only a method which allows a comparison of technological advantages, but also one which can yield the selective replacement time". This concept has direct implications for clinical practice for, once the "elective replacement time" is known for a particular model, it becomes possible to replace the pacemaker electively without having to wait for it to break down or run out, events which are in any case unpredictable and possibly sudden. Knowledge of the "elective replacement time" will also avoid changes being made too early, which is a source of unnecessary expense for the Social Security.
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects / Q000592:standards*
vernacular_title: Etude de la survie cumulée de 1697 stimulateurs cardiaques. Supériorité des appareils à herméticité totale