Preliminary evaluation of a dual chamber pacemaker with XXXX diagnostic functions.

@entity1 @entity713 @entity1163 @entity3603 @entity1817 @entity1168
Unexplained @entity1163 is the main indication for the implantation of a diagnostic pacemaker. Studies on those implanted have shown that in @entity1 with unexplained @entity1163 , the diagnosis of paroxysmal @entity1168 was feasible and reliable. The present study was designed to evaluate a new @entity1168 diagnosis algorithm, loaded in a dual chamber pacemaker, in 24 @entity1 considered as candidates for diagnostic pacemakers. During a mean follow-up of 153 days, at least one @entity1168 episode was recorded in 13 @entity1 . The mean number of detected @entity1168 was 6 and the median was 3. The mean delay between the algorithm activation and the first @entity1168 episode was 67 days. The mechanism of @entity1168 was @entity713 in 6 @entity1 , @entity1817 in 6 @entity1 , and consecutive blocked atrial premature beats in 1 @entity1 , as indicated by the event markers. In 11 @entity1 @entity1168 was recorded during the daytime only or day and night. In two @entity1 the episodes were recorded only at night. Overall, the algorithm was well-tolerated; however, some mild symptoms were observed due to the method of @entity1168 determination, allowing @entity1168 . Three @entity1 were symptomatic as a direct result of the algorithm operation, and four @entity1 had symptoms related to the single chamber operation of the pacemaker while functioning in the diagnosis mode (VDI). These symptoms were relieved with @entity3603 pacing.
