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How Induction Impacts Labor

From October, 2007 Newsletter

Written by Carol Peterson, ICCE, CD(DONA)

Before beginning a discussion of induction, it is important to know that there are times when the benefits of an induction outweigh the risks of allowing a pregnancy to continue.  In this case, the induction becomes medically necessary.  According to the American College of Obstetricians and Gynecologists, medical reasons for induction include[1]:  

bulletA post-term pregnancy, greater than 42 weeks.
bulletA mom with a medical condition, such as high blood pressure or preeclampsia.
bulletPremature rupture of membranes.  (Water breaks and labor does not start within a set amount of time.)
bulletAn infection within the uterus.
bulletAn abrupted placenta, where the placenta begins to separate from the uterine wall.

Be aware that a large baby is not a medical reason for induction.  According to experts, including the American College of Obstetricians and Gynecologists, induction for suspected large babies does not improve outcomes for babies and almost doubles the risk of a cesarean for mothers.

Now, on to How Induction Impacts Labor….

After her 39-week appointment, Mary hurries home to tell her husband the great news.  She will be induced at 40 weeks if she hasn’t had her baby.  She is fine and the baby is fine.  The induction is really not needed for a medical reason, but she doesn’t care.  She can't wait to see her baby, and she is growing more and more uncomfortable with each passing day.

So, what's the big deal?

For those of you who have had an induction, you know that it can be a big deal.  If Mary was fully informed, she may not have agreed to the elective induction.  However, at 6:00 am Mary arrived at the hospital 40 weeks pregnant, ready for her induction.  In her childbirth class she learned that labor usually starts with mild contractions, and the strength of the contractions increase over time.  During her induction, Mary was shocked to find that strong contractions happened very early in labor, that she was on the monitor the whole time, and that her plans of using the shower and walking the halls weren't to be. 

What makes an induced labor so different from a spontaneous labor?

While some health care providers feel that there is little difference between a spontaneous labor and using Pitocin, a drug used to stimulate labor contractions, most research, as well as women who have experienced induction, contradict this.  An induced labor may result in: 

bullet

A labor that is more intense.  Stronger contractions occur sooner in labor, without the benefits of allowing mom time to adjust to the power of labor.  In a spontaneous labor, the ramping up of contractions gives mom a chance to learn to cope with contractions, and her body will slowly increase its production of endorphins to help her handle labor.

bullet

A different contraction pattern.  With an induction, and use of Pitocin, the “goal” is to create contractions that are 3 to 5 minutes apart.  To do so, the rate of Pitocin is increased every 20-30 minutes until the contraction pattern is reached.  In a spontaneous labor, most women experience early labor where contractions are farther apart, and eventually gather momentum, reaching 3 to 5 minutes in frequency.  Some women experience a cluster of contractions, and then a bit of a break, and then another cluster.  These little breaks give mom a chance to rest.  

bullet

Increased use of other medical technologies.  In order to keep mom and baby safe during an induction, continuous fetal monitoring is a must.  Continuous monitoring makes it harder for mom to use other tried and true comfort measures.  Unless mom is able to labor at a hospital with wireless monitors, she will be confined to a limited space, unable to use hydrotherapy (shower or tub) as a relaxation tool, and will be unable to walk, which is a proven technique to improve progress.

Some caregivers use internal fetal monitoring and intra-uterine pressure catheters with an induction.  Internal monitors, inserted directly into the baby’s scalp, and pressure catheters require mom’s water be ruptured, which creates a commitment to delivery, increasing the chance of cesarean birth.   

bullet

Increased use of pain medications.  More powerful contractions, combined with the inability to use other comfort measures, can cause many moms to choose pain medications.  

bullet

Increased risk of cesarean delivery.  A recent study (2) showed that reducing the induction rate by 22% corresponded to a reduction in unplanned cesareans by 21%... with NO change in outcome for mom or baby.  Often, women go into an induction without knowing that an induction will double a first-time mom's risk of cesarean.(3)   

In conclusion, I’ve seen beautiful inductions that went smoothly and moms that coped amazingly well, but I’ve also seen the flip-side of this picture.  If you are facing an induction, then I encourage you to become informed so that you can make a sound decision, especially if the induction is elective.  It is possible to avoid an induction, and in next month’s newsletter, we’ll look at ways to do just that.  

(1) ACOG Education Pamphlet 154: Labor Induction www.acog.org

(2) ICAN White Paper "Induced Labor and Informed Consent in Canada" by Gail J. Dahl.  www.ican-online.org

(3)ICAN White Paper "Position Statement: Induction of Labor" www.ican-online.org


The material in this site is provided for personal, non-commercial, educational and informational purposes only and does not constitute a recommendation or endorsement with respect to any company or product. You should seek the advice of a professional regarding your particular situation.
 
Copyright 2007, Carol Peterson, ICCE, CD(DONA)

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Contact Information

Carol Peterson, ICCE, CD(DONA)

Erie, PA 16510

814-899-7722

cbecarol@yahoo.com
 

 
Copyright © 2007 Childbirth Education by Carol Peterson, ICCE, CD(DONA)                                                                       
Last modified: 04/10/08