ABSTRACT
The clinical evaluation of a new automatic sensitivity adjustment feature in the Cosmos II, Model #284-05 is described. This feature, designed to maintain a 2:1 safety margin for sensing intrinsic signals, was activated by way of special programmer software in ten patients at two centers. While the feature worked satisfactorily in some cases, it did not perform as expected, and undersensing in both chambers was observed. This may have been due to biasing the adjustment toward maximum rather than minimum electrograms. This study suggested that electrograms may vary by more than 100% which underscores the importance of this feature, and reinforces the need for continued development.
Subject(s)
Algorithms , Pacemaker, Artificial , Software Design , Electrocardiography, Ambulatory , Equipment Design , Evaluation Studies as Topic , Humans , Microcomputers , Software Validation , TelephoneABSTRACT
The automated studies performed at implant require little extra time and provide essential information for postoperative troubleshooting and patient management. The automated testing and analysis system is but one component in a comprehensive patient management system designed for and dedicated to pacing; the system is an integral part of a complete data management system which includes extensive follow-up and management sections.
