Pudendal nerve decompression in perineology : a case series

BMC Surgery

Table 5 Effect of PND on EMG and PNTML

	Anal Richness (range 1 to 6)	BC Richness (range 1 to 6)	Anal PNTML (msec)	Perineal PNTML (msec)
All subjects	74	74	74	74
Follow up less than 12 months or lost	39	39	39	39
Analysed cases(left and right)	70	61	70	51
Mean Before	2,70	2,23	3,38	5,63
Mean After	3,11	2,44	2,63	5,21
t-test p-value(one-tail)	0,00007	0,06989	0,00004	0,00816

Left and right values for each level (anal and perineal) were included in the same group. P-values at the bottom line correspond to one-tailed significance tests of the mean differences "before" versus "after".

ISSN: 1471-2482