Estella Pulse Generators - BIOTRONIK USA - News

Estella Pulse Generators Technical Manual 978.5.1 Ventricular Pacing Amplitude HistogramThis function records how often the ventricular pulse amplitude is withinspecific ranges. The rate range is subdivided into categories rangingfrom 0.1 V to >6.0 V. The ventricular pacing amplitude is sampled at 2second intervals and entered in the histogram. The percentage and totalnumber of 2 second intervals occurring within an amplitude class isdisplayed.Recording stops when VCC is disabled between follow-ups or if thememory available for recording the ventricular amplitude is full. Datamay be recorded for several years. The frequency distribution of thesensor rates can also be displayed as a diagram during follow-upexaminations.8.5.2 V Pacing Threshold TrendThis trend records the ventricular pacing threshold measured duringSA/CV sequences. A threshold sample is measured every 24 hours. Themaximum trend duration is approximately 240 days with a samplinginterval of approximately 24 hours.The pacing threshold sampled is always the most recent measuredthreshold. In other words, the logged pacing threshold is unaffected byVCC algorithm failures or aborts.8.5.3 Capture Control StatusThe Capture Control Status displays the status, threshold last value(including time and date), current pacing amplitude, and reason for ACCand VCC being disabled or suspended (if applicable).8.6 Sensing StatisticsP- and R-wave TrendsEstella pulse generators periodically perform P- and R‐wave amplitudemeasurements to be displayed later as trend data. A P- and R-wavelong-term trend of up to 240 days is available. After the initial timeframehas elapsed, the first data stored is overwritten with new data; therefore,the most recent data are available for review.Far-field HistogramThe Far-field Histogram provides information related to cross-talkfollowing V pand V sevents. The range is 220 ms for each typeof event. The display provides the percentage of far-field events at eachvalue.