Sunday, October 27, 2013

Pitocin Facts: What Every Mom Needs to Know About the Risks

Doctors these days would have their patients (who either must, or elect to be, induced) view pitocin as a magical drug that induces and/or augments labor with no adverse side effects. This could not be further from the truth. Not only is pitocin not approved by its manufacturer for elective inductions, but even in medically-indicated inductions, it carries a wide range of side effects (both minor and severe)!

There are very valid reasons to be induced. Any condition that threatens the life of mother and/or baby, such as pre-eclampsia, intrauterine growth restriction, etc., is more than enough reason, and issues such as placenta previa (where the placenta covers the cervix and baby cannot be born vaginally) call for an immediate cesarean. The benefits of pitocin and/or major surgery vastly outweigh the risks in these situations.

But what about post-dates pregnancies?  Possible big babies? Mom being tired of pregnancy? Convenience? These may seem like valid reasons, but when you weigh them against the risks to both mother and baby, it might make you re-think the situation. Pitocin is far from risk-free, and the adverse effects on both mom and baby are enough to give anyone pause. Induction of labor can raise the chances of a cesarean delivery by as much as 50% (as I have previously cited), so if you wish to avoid a surgical or interventionist/medical delivery, and your situation is not urgent, induction is likely not the best choice for you. If the benefits, such as saving the life of mother and baby, outweigh the considerable risks, then it may be the right choice. But there is a lot to consider when you might need or want to be induced, for whatever reason.

If you want to be induced because of social reasons, a feeling of being "done" with pregnancy, or simply being past your EDD (estimated date of delivery), you might want to take a look at these side effects (which are more likely than most OB's would have you believe) of pitocin, the most common labor inducing drug, before you make any decisions.

The following list of adverse effects to mother and baby is from the FDA:

"Adverse Reactions

The following adverse reactions have been reported in the mother:
Anaphylactic reaction Premature ventricular contractions
Postpartum hemorrhage Pelvic hematoma
Cardiac arrhythmia Subarachnoid hemorrhage
Fatal afibrinogenemia Hypertensive episodes
Nausea Rupture of the uterus
Vomiting
Excessive dosage or hypersensitivity to the drug may result in uterine hypertonicity, spasm, tetanic contraction, or rupture of the uterus.
The possibility of increased blood loss and afibrinogenemia should be kept in mind when administering the drug.
Severe water intoxication with convulsions and coma has occurred, associated with a slow oxytocin infusion over a 24-hour period. Maternal death due to oxytocin-induced water intoxication has been reported.
The following adverse reactions have been reported in the fetus or neonate:
Due to induced uterine motility: Due to use of oxytocin in the mother:
  Bradycardia   Low Apgar scores at five minutes
  Premature ventricular contractions and other arrhythmias   Neonatal jaundice
  Permanent CNS or brain damage   Neonatal retinal hemorrhage
  Fetal death
  Neonatal seizures have been reported with the use of Pitocin."

There are further warnings (http://evidencebasedbirth.com/crank-up-the-pit-2/):
  • Oxytocin (Pitocin) is a high-alert medication, meaning that this drug has a high risk of causing significant harm if a drug error is made. It also has a black box warning, which is the FDA’s strongest warning for drugs. In this black box warning, the FDA says that Pitocin should only be used when induction of labor is medically indicated (never for “elective” induction), or in “select cases” of stalled labor. Medical indications of induction (according to the FDA) include blood Rh problems, maternal diabetes, pre-eclampsia at or near term (when delivery is in the best interest of the mother or fetus), or premature rupture of membranes (when delivery is in the best interest of mom or baby). (UpToDate, 2012).
  •  Pitocin has many potential adverse reactions. For the mom, Pitocin can cause heart rhythm problems, high blood pressure, nausea and vomiting, post-partum hemorrhage, too frequent contractions of the uterus (called uterine tachysystole), constant contraction of the uterus (called uterine tetany), uterine rupture (more common in second-time or more moms), and severe water intoxication.
  •  For the baby, oxytocin can cause heart rhythm problems, slow heart rate, permanent brain damage, seizures, jaundice, retinal hemorraghe, fetal death, and low Apgar scores. Contractions of the uterus temporarily interrupt blood flow to the baby. The stronger, longer, and more frequent contractions caused by Pitocin can lower oxygen levels in baby. This leads to bad changes in the baby’s heart rate patterns on the monitor, and could possibly result in mom being rushed to an “emergency” C-section—an emergency that was caused by the induction drug itself.
  •  In a recent Cochrane review, researchers found that augmentation of a “slow” labor with Pitocin shortened labor by two hours. However, it did not increase or decrease the C-section rate. The early use of Pitocin increased uterine hyperactivity, which means that moms had stronger, more frequent, longer contractions. The sample sizes are not big enough to look at infant or maternal deaths. The authors of the Cochrane review conclude that although Pitocin has been used for 40 years to reduce the need for C-section, it is not at all effective in doing so. Healthcare providers may feel the need to speed up labor, but doing so exposes a woman and baby to a drug that—in this case—has no benefits and may have dangerous adverse effects (Bugg et al., 2011). My personal advice to moms out there– before agreeing to Pitocin augmentation, ask your provider, “Am I okay? Is baby okay? Then give us more time, please.”
And (http://motherwiselife.org/2013/03/20/i-did-not-consent-my-terrifying-experience-with-pitocin/):

  •   Using pitocin reduces the body’s production of Oxytocin. This can create difficulties with the bonding and breastfeeding process after birth. 
  • Pitocin, on the other hand is a super scary thing. The insert in the Pitocin package is very clear about the risks of using this drug during labor and delivery. 
  • Risks include (per Pitocin package insert):
    • -fetal heart abnormalities (slow hear beat, PVSs and arrhythmias)
    • -low APGAR score
    • -neonatal jaundice
    • -neonatal retinal hemorrhage
    • -permanent central nervous system or brain damage
    • -fetal death
    • -fetal asphyxia and neonatal hypoxia
    • -blood supply to uterus is greatly reduced
    • -contractions are closer together and stronger-reducing the rate at which baby receives oxygen (which can have life long effects on baby’s brain)
  • Risks for birthing women:
    • Postpartum hemorrhage (due to prolonged exposure to non-pulsed Oxytocin)
    • -reduce natural hormones that assist in lactation and bonding with baby
    • -hormonal disruption can lead to reduced rates of breastfeeding
    • -increased risk of epidura
    • -higher intensity contractions
    • -higher rate of complications in labor and delivery
    • -higher rate of placental rupture and separation

Monday, October 7, 2013

AROM (Artificial Rupture of Membranes): Why is it Done, and What Does it Really Do?

An OB or midwife may recommend to their patient that they should perform an amniotomy (break the bag of waters) for any these reasons:
  • in a stalled or prolonged (spontaneous) labor to "speed things up"
  • to induce labor (either alone, or in conjunction with labor-inducing drugs) 
  • to place an internal fetal monitor
  • to check for meconium in the amniotic fluid in the case of fetal distress

Are these reasons evidence-based? Some are, yes. Others are not.

  • As far as breaking the water to speed up labor goes, this is not based in any scientific fact. The evidence is actually against it. AROM has been debunked as a method of speeding up labor, with most studies saying that it does not significantly speed up labor, and if it does, it only shortens labor by maybe an hour, at most. The Cochrane Review on this subject states that "Evidence does not support routinely breaking the waters for women in normally progressing spontaneous labor or where labors have become prolonged."
  • When it comes to breaking the water as the sole means to induce labor, ACOG states that "Used alone for inducing labor, amniotomy can be associated with unpredictable and sometimes long intervals before the onset of contractions. There is insufficient evidence on the efficacy and safety of amniotomy alone for labor induction." Essentially, it's not reliable, may not be safe, and doesn't do what we've been told it's supposed to do (which is jump-start contractions and get labor going).
  • If there is legitimate concern about fetal well-being, such as irregular heartbeat and signs of distress, it may become necessary to break the waters (if they have not broken already) in order to place an internal fetal monitor. In this case, the benefits (keeping a closer eye on baby and maybe saving baby's life) may outweigh the risks.
  • This is the same as above. If there are real signs of distress, breaking the water to check for meconium can help you and your doctor to make the best decision, with all the facts in hand, about how to continue in your labor. If baby is truly distressed, has passed meconium, and there are other problems as well, you might need to have an emergency cesarean. This is not to say that it is impossible to vaginally have a healthy baby who has passed meconium in the womb (because it absolutely is, and about 20% of babies after 40 weeks gestation will pass meconium as their bowels reach maturity and begin to work), but it can be a red flag for complications. 

So what are the risks of amniotomy/AROM/breaking the water? Why would you not want it performed?
  • It may increase the strength and intensity (and pain level) of contractions, because it essentially removes the cushion of fluid from around the baby, and causes baby's head to come into more direct contact with mom's cervix (ouch!). This can lead to mom asking for pain medications, such as an epidural, which leads to less physiological labor and pushing positions, which leads to other interventions...well, you see where this is going. The old "cascade/slippery slope."
  • The baby may go into distress due to compression of the cord, the placenta, or the baby him/her self.
  • Studies have found that amniotomy can alter fetal vascular blood flow, which suggests that there may be a fetal distress response to AROM.
  • AROM may cause what is called "cord prolapse," which happens when baby's head is not engaged when the waters are broken, and the cord is swept out of the cervix by the fluid and baby's head then comes down, compressing the cord and cutting off baby's blood/oxygen supply. This is a severe emergency situation, and the baby must immediately be born by cesarean. This is a life-or-death complication that can be directly caused by medical intervention (AROM).
  • There may be a blood vessel running through the membranes, and if that vessel is is ruptured by the amni-hook during AROM, the baby could lose a lot of blood, fast. This is another emergency situation that requires a cesarean, caused directly by an intervention.
  • There is a (very slight) increase in the risk of infection after AROM, but this is more of a risk to mom than baby, and the risk is greatly reduced if nothing is introduced into the vagina during labor (as with cervical checks, etc.).
  • Early amniotomy, on its own, increases your risk of having a cesarean delivery.
To sum up, AROM increases your risk of fetal distress, infection, cord prolapse, cesarean section, maternal and fetal blood loss, and opens the door for further interventions, which themselves carry risks. AROM does not, as some will tell you, significantly speed up a stalled labor, and it is not effective/reliable as a method of labor induction, either. So unless there is a life-threatening or possible emergent situation, it is best to leave the waters intact and not artificially break them. There are too many risks, and not enough evidence of any benefits, to justify AROM without a medical necessity.
  1. Evidence does not support routinely breaking the waters for women in normally progressing spontaneous labour or where labours have become prolonged. - See more at: http://summaries.cochrane.org/CD006167/amniotomy-for-shortening-spontaneous-labour#sthash.tyjUw2Pr.dpuf
    Evidence does not support routinely breaking the waters for women in normally progressing spontaneous labour or where labours have become prolonged. - See more at: http://summaries.cochrane.org/CD006167/amniotomy-for-shortening-spontaneous-labour#sthash.tyjUw2Pr.dpuf
    Evidence does not support routinely breaking the waters for women in normally progressing spontaneous labour or where labours have become prolonged. - See more at: http://summaries.cochrane.org/CD006167/amniotomy-for-shortening-spontaneous-labour#sthash.tyjUw2Pr.dpuf
    Evidence does not support routinely breaking the waters for women in normally progressing spontaneous labour or where labours have become prolonged. - See more at: http://summaries.cochrane.org/CD006167/amniotomy-for-shortening-spontaneous-labour#sthash.tyjUw2Pr.dpuf
    Evidence does not support routinely breaking the waters for women in normally progressing spontaneous labour or where labours have become prolonged. - See more at: http://summaries.cochrane.org/CD006167/amniotomy-for-shortening-spontaneous-labour#sthash.tyjUw2Pr.dpu

It's Official!

As of October 5th, 2013, I am signed up for my birth doula training through Childbirth International! It feels surreal to have finally taken that first, big step. I'm ready to get this thing going! As soon as I hear from my trainer, I'll be getting started on the coursework. I've already done some reading on the student website, and I'm loving everything I've seen so far. This organization has such an unbiased, realistic philosophy and approach to pregnancy, childbirth, and the postpartum period, and I've already learned so much just from reading the section on the importance of communication. I'm going to grow so much as a person through the course of this.

I also have more news! I have a client! She is due Nov. 2nd of this year, and we have already had our preliminary meeting to discuss her wishes and form a birth plan! We seem to be very much on the same page philosophy-wise, and I cannot wait to support her in her labor and birth.

So many exciting things are happening in my life right now, and I could not be happier! Now, on to the next blog post! :-)