Table 3.
Frequency of presumed early recanalization following the consensus process, according to vasectomy occlusion technique and outcome in the fascial interposition trial and the cautery study.
| Vasectomy technique | Early recanalization | Vasectomy outcome | Total | ||
| Failurea n (%) | Successb n (%) | Indeterminatec n (%) | |||
| FI trial | |||||
| LE | |||||
| Yes | 46 (87) | 49 (15) | 10 (31) | 105 (25) | |
| No | 7 (13) | 282 (85) | 22 (69) | 311 (75) | |
| Total | 53 (100) | 331 (100) | 32 (100) | 416 (100) | |
| LE and FI | |||||
| Yes | 20 (83) | 20 (6) | 1 (2) | 41 (10) | |
| No | 4 (17) | 323 (94) | 42 (98) | 369 (90) | |
| Total | 24 (100) | 343 (100) | 43 (100) | 410 (100) | |
| Cautery study | |||||
| EC | |||||
| Yes | 2 (100) | 13 (7) | 2 (40) | 17 (9) | |
| No | 0 (0) | 177 (93) | 3 (60) | 180 (91) | |
| Total | 2 (100) | 190 (100) | 5 (100) | 197 (100) | |
| TC and FI | |||||
| Yes | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |
| No | 1 (100) | 188 (100) | 3 (100) | 192 (100) | |
| Total | 1 (100) | 188 (100) | 3 (100) | 192 (100) | |
FI = fascial interposition, LE = ligation and excision, EC = electrocautery, TC = thermal cautery
a FI trial definition: 5 million or more motile sperm/mL at 14+ weeks or 100,000 sperm or more/mL with any motility at 26+ weeks. Cautery study definition: Not meeting success definition by 24 weeks or having more than 10 million sperm/mL at 12+ weeks
b FI trial definition: Two consecutive azoospermic specimens taken at least two weeks apart. Cautery study definition: Less than 100,000 sperm/mL in two consecutive specimens taken at least two weeks apart.
c Neither a success nor a failure.