39
Table 6. Pacemaker Interrogation and Programming
Approach for CPP
HBP LBBAP CRT
Capture
thresholds
Determine His bundle
capture relative to RV
capture; program output
to ensure His bundle
capture (at least 1 V
above the threshold)
Determine LBB
(LV septal) capture
and anodal capture
Determine LV (CS
lead)–only capture
and anodal capture
Capture
assessment
algorithms
Avoid, unless known
that His bundle and RV
capture thresholds are
similar
Capture assessment
algorithms can be
utilized successfully
Capture assessment
algorithms can be
utilized successfully;
LV–only pacing may
be preferred in some
cases
AV delays Program 30–50 ms
shorter than
conventional
parameters
a
Program 20–30 ms
shorter than
conventional
parameters
a
Program 10–20 ms
shorter than
conventional
parameters
a
Atrial
oversensing
Atrial oversensing can
occur with proximal
lead placement and
may need appropriate
programming to also
avoid ventricular
undersensing
Ventricular
unipolar
sensing
Avoid if pacing
dependent
a
A shorter AV delay than conventional is needed to take account for the time delay
from pacing output to QRS onset with conduction system pacing.
