Table 1.
VF activation patterns before and after plunge needles insertion
| Pig (n=3) | Dog (n=3) | |||||
|---|---|---|---|---|---|---|
| Before Needles Inserted | After First Needle Row Inserted | After Second Needle Row Inserted | Before Needles Inserted | After First Needle Row Inserted | After Second Needle Row Inserted | |
| Number of wavefronts | 64±22 | 60±17 | 66±22 | 98±31 | 92±26 | 94±22 |
| Block incidence | 25±9 | 27±13 | 26±12 | 23±7 | 27±11 | 24±8 |
| Breakthrough or focal incidence | 39±12 | 35±18 | 38±12 | 22±10 | 24±11 | 19±6 |
| Multiplicity | 9.3±2.2 | 8.8±1.3 | 9.4±2.2 | 14±6.3 | 12±2.0 | 10±2.4 |
| Area swept by wavefronts, mm2 | 199±33 | 182±46 | 209±33 | 237±42 | 227±52 | 219±43 |
| Reentry incidence | 1.3±0.2 | 1.1±0.04 | 1.0±0.2 | 3.5±1.2 | 3.6±0.3 | 3.2±0.6 |
P>0.05 for pig and dog before, after the first needle row and after the second needle row insertion.