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ii Stratos LV/LV-T Technical Manual
2.1.11 OFF (ODO)..........................................................69
2.2 Biventricular Synchronization of the Stratos CRT-Ps..69
2.3 Timing Functions.........................................................70
2.3.1 Basic Rate ...........................................................70
2.3.2 Rate Hysteresis ...................................................71
2.3.3 Scan Hysteresis...................................................72
2.3.4 Repetitive Hysteresis...........................................74
2.3.5 Night Mode ..........................................................75
2.3.6 Refractory Periods...............................................76
2.3.7 Atrial PMT Protection...........................................77
2.3.8 Ventricular Refractory Period ..............................78
2.3.9 AV Delay..............................................................78
2.3.10 VES Discrimination after Atrial Sensed Events...80
2.3.11 Sense Compensation..........................................80
2.3.12 Ventricular Blanking Period.................................81
2.3.13 Safety AV Delay ..................................................81
2.4 Pacing and Sensing Functions....................................82
2.4.1 Pulse Amplitude and Pulse Width .......................82
2.4.2 Sensitivity ............................................................83
2.4.3 Lead Polarity........................................................83
2.5 Automatic Lead Check................................................84
2.6 Antitachycardia Functions:..........................................86
2.6.1 Upper Rate and UTR Response .........................86
2.7 Wenckebach 2:1..........................................................86
2.8 Mode Switching...........................................................88
2.9 PMT Management.......................................................89
2.9.1 Protection ............................................................89
2.9.2 PMT Detection.....................................................90
2.10 Adjustment of the PMT Protection Window.................91
2.11 Atrial Upper Rate.........................................................92
2.12 Preventive Overdrive Pacing (Overdrive Mode) .........92
2.13 AES Detection and Pacing..........................................94
2.13.1 AES Detection .....................................................94
2.13.2 Post AES Stimulation ..........................................95
2.14 Parameters for Rate-Adaptive Pacing ........................95
2.14.1 Rate-Adaptation...................................................95
2.14.2 Sensor Gain.........................................................96
2.14.3 Automatic Sensor Gain .......................................96
2.14.4 Sensor Threshold ................................................97
2.14.5 Rate Increase ......................................................97