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