User's Manual
WARNING: For leads that require the use of a Connector Tool, use caution handling the lead terminal when
the C onnector Tool is not present on the lead. Do not directly contact the lead terminal with any surgical
instruments or electrical connections such as PSA (alligator) clips, ECG connections, forceps, hemostats, and
clamps. This could damage the lead terminal, possibly compromising the sealing integrity and result in loss
of therapy or inappropriate therapy, such as a short within the header.
• Pace/sense lead measurements, measured approximately 10 minutes after initial placement (acute) or
during a replacement procedure (chronic), are listed below. Values other than what are suggested in
the table may be clinically acceptable if appropriate sensing can be documented with the currently
programmed values. Consider reprogramming the sensitivity parameter if inappropriate sensing
is observed. Note that the pulse generator measurements may not exactly correlate to the PSA
measurements due to signal filtering.
Table 9. Lead measurements
Pace/ sense lead (acute) Pace/ sense lead (chronic)
R-Wave Amplitude
ab
>5mV >5mV
P-Wave Amplitude
ab
>1.5mV >1.5mV
R-Wave Duration
bcd
< 100 ms < 100 ms
Pacing Threshold (right ventricle)
< 1.5 V endocardial
< 2.0 V epicardial
< 3.0 V endocardial
< 3.5 V epicardial
Pacing Threshold (left ventricle)
< 2.5 V coronary venous
< 2.0 V epicardial
< 3.5 V coronary v enous
< 3.5 V epicardial
Pacing Threshold (atrium)
< 1.5 V endocardial < 3.0 V endocardial
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