advantage of AROM:
-direct FSE/IUPC monitoring
-able to assess color of fluid (making preparations if mec stained, rather than rude last-minute surprises)
-increased release of prostaglandin by the cervix now being stretched by the firm presenting part rather than the bag of waters
Disadvantage of AROM:
-increased risk of chorioamnionitis as sterile barrier is now breached
-decreased fluid 'cushion' for umbilical cord, possibly resulting in more var. decels
-if done too early when pt NOT in active labor, labor may last longer than the "24-36 hr ROM window" that most OBs/Peds are comfortable with
-early ROM may affect proper descent/rotation of fetus in the pelvis...the fluid acts as a cushion, a lubricant, etc.
(think how many OP primips you see that are SROM'd....) may be increasing risk of c/s for malpresentation/arrest of descent.
If MD asks me to AROM early in an induction, on an unripe cervix or a primip, my response is "So, you are commited to agressive labor management of this patient and delivery within the next 18-24 hours?" Often at that point they will discuss whether a cervical ripening agent like Prepidil, Cervidil or Cytotec would be appropriate!!!!
Hope that helps!
Happiness!
Haze :-)
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