In laboring pregnant women, when should first- and second-stage arrest be diagnosed?
In laboring pregnant women, when should first- and second-stage arrest be diagnosed? “Active phase arrest” is defined as lack of cervical dilation once at or beyond 6 cm with ruptured membranes despite 4 hours of adequate contractions or 6 hours of inadequate contractions. “Second-stage arrest” is defined as no descent or rotation despite pushing ≥3 hours for nulliparous women and ≥2 hours for multiparous women; this interval may be longer in women with an epidural.
Evidence Based Practice 17(10): 6