We observed that the simple and potentialized
pressure curves of the anal canal in Group 1 normalized
after BFB, and the number of contractions in 3 of 4 patients
increased. In Groups 2, 3 and 4, however, no changes in
the aspect or leveI of the curves were observed, but the
number of contractions in these groups also increased.
Fibrosis results in a curve with high pressure values
and short duration caused by the tissue fibrosis, sometimes
with local stenosis and few contractions in the potentialized
curve.