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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