Characteristics | Sporadic pHPT, n= 467 | MEN1-pHPT, n= 52 | MEN2A-pHPT, n= 16 |
---|---|---|---|
Initial operation, n | Â | Â | Â |
 Minimally invasive parathyroidectomy | 328 (70%) | 5 (10%) | 6 (38%) |
 Minimally invasive parathyroidectomy converted to conventional neck exploration | 39 (8%) | 3 (6%) | 0 |
 Conventional neck exploration | 100 (21%) | 44 (84%) | 10 (62%) |
Subtotal parathyroidectomy, n | - | 38 (73%) | - |
Total parathyroidectomy, n | - | 6 (12%) | - |
Number of operations, n | Â | Â | Â |
 One procedure | 435 (93%) | 26 (50%) | 13 (81%) |
 Two procedures | 31 (7%) | 17 (33%) | 1 (6%) |
 Three or more procedures | 1 (<1%) | 9 (17%) | 2 (13%) |
Mean number of operations | 1.07 | 1.85 | 1.29 |
Cumulative operative findings, n | Â | Â | Â |
 No adenoma found | 6 (1%) | - | 1 (6%) |
 1 enlarged gland | 426 (91%) | 17 (33%) | 13 (81%) |
  Solitary (adenoma, hyperplasia) | 422 (90%) | 17 (33%) | 13 (81%) |
  Carcinoma | 4 (1%) | - | - |
 > 1 enlarged glands | 35 (7%) | 35 (56%) | 2 (13%) |
  2 enlarged glands | 26 (6%) | 12 (23%) | 2 (13%) |
  3 enlarged glands | 8 (2%) | 17 (33%) | - |
  > 3 enlarged glands or hyperplasia | 1 (<1%) | 6 (12%) | - |