The rate of accidental dural puncture after epidural approach has been estimated and varying from 0.19% to 3.6% in several studies .
Se estima que la tasa de punción accidental de la duramadre durante la punción epidural varía de 0,19% a 3,6% .
Estima-se que a taxa de punção acidental da dura-máter durante a punção peridural varie de 0,19% a 3,6% .