LP implantations
The operative characteristics of LP implantations are summarized in
Table 3. Temporary pacing with an active fixation lead was instituted in
5 patients as a bridge to the Micra implant. The median interval from
the TLE procedure to the LP implantation procedure was 14.5 days. One
patient with severe dementia (patient No.4) underwent a simultaneous TLE
procedure and LP implantation. One patient (patient No.2) underwent a
Micra implantation 132 days after the TLE procedure, since she had an
intractable severe inflammatory sign even after a complete device system
removal. All 8 patients achieved successful LP implantation with no
major or minor procedural complications including no access site
complications. The mean LP implant time was 33.8 ± 20.4 minutes. The
mean electrical measurements of the LP were 8.3 ± 4.6 mV for the R-wave
with an impedance of 580.0 ± 62.6 ohm and pacing threshold of 0.8 ± 0.24
V after an average of 1 or 2 device deployment attempts per patient.