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Pregnancy and Opiate Use Disorders
Opioid use disorder in pregnancy has increased by 300% between 1994 and 2014 and is up to over
six and a half cases per 1000 pregnant women in the United States (O’Rourke-Suchoff et al., 2020). As
there has been extra interest in opioid use disorder treatment with the growing epidemic there has also
been increased interest and research into the best and most effective treatment for pregnant individuals
who also have an opioid use disorder. Clinical guidelines indicate that the pregnant patient should either
continue or be placed on opioid maintenance medications methadone or buprenorphine to mitigate
withdrawal or illicit use (Ecker et al., 2019). Both medications are FDA approved for opioid use, and are
considered the gold standard for treatment of women who are pregnant and also struggling with an
opioid addiction (Ecker et al., 2019). The downside to going on opioid maintenance during pregnancy is
there is still the risk of overdose/overuse connected to opiate addiction, and there is also an increased
likelihood of neonatal opioid withdrawal syndrome (NOWS), occurring in 47-57% of cases in patients on
medication-assisted treatment (MAT) (Lappen et al., 2020). There is evidence that patients who choose
MAT have increased retention in substance use programs, experience a reduction in the severity and
frequency of NOWS (specifically for buprenorphine), there are also higher birth weights, decreased fetal,
obstetric, and newborn morbidity and mortality, fewer pregnancy complications, decreased HIV risk
behaviors as well as improved adherence to prenatal care (Ecker et al., 2019).
When transitioning a patient from an illicit opiate to MAT s, the Clinical Opiate Withdrawal Scale
(COWS) is used to determine if the patient is in withdrawal and will need additional medication for
cravings and stabilization (Gordon & Uquillas, 2021). This evidence-based scale is important to make
sure that the patient is on the smallest effective dose, but also very important for buprenorphine
induction as the patient must be in moderate withdrawal before receiving buprenorphine or risk
precipitated withdrawal if not yet in moderate withdrawal(Ecker et al., 2019)
A medication which is FDA-approved to help individuals who struggle with opioids but is not
indicated for pregnant women who are struggling with opiate use disorder in the United States is
naltrexone. As naltrexone is sometimes used in the treatment of opioid use disorder, there is increasing
data on how women and children are faring throughout and after pregnancy. Thus far there appears to
be similar maternal and infant mortality numbers to the MAT exemplars above, normal birth weights,
and with no incidence of NOWS (Wachman et al., 2019). The risk associated with naltrexone use in
pregnant patients is that pain management may become complicated during labor and delivery, also if
the patient is not already on naltrexone at the time of pregnancy then there is also the risk of
precipitated withdrawal, spontaneous abortion, or preterm birth, and risk of relapse during the period
of abstinence before starting the medication (Ecker et al., 2019). While more research is needed to
clarify the safest way to transition a pregnant woman to naltrexone, keeping a pregnant woman already
stabilized on naltrexone seems to be an option that could provide some success vs the recommended
methadone or buprenorphine treatment.
While social support, psychotherapy, and resource support are recommended in all cases of the
pregnant woman struggling with opioid addiction, a third option that relies less on consistent
medication-assisted treatment is to undergo a detox process and rely solely on psycho-behavioral
interventions to remain sober. This is not typically recommended as it is more associated with a higher
rate of relapse, HIV risk behavior, infant and mother mortality, and morbidity (Ecker et al., 2019). If the
detox method is chosen, then one study found that the most effective variant is to have a woman
undergo inpatient detoxification and then spend the rest of their pregnancy in a residential treatment
facility, leading to the highest maternal QALYS, lowest rate of relapse and best neonatal outcomes
versus only one week of inpatient detox or a longer 16-week outpatient detox(Willey et al., 2018).
Patients who are struggling with opiate use addiction and are pregnant report that while they continue
to feel stigma from some providers, they also enjoy increased social connectivity found in support
programs, and that pscyho-behavioral programs decrease substance use and increase maternal and
baby healthy outcomes (O’Rourke-Suchoff et al., 2020).
As the incidence of opiate use disorder and other substance use disorders increase in our
population, the psychiatric nurse practitioner will be asked to consult or assist in special cases such as
pregnant women. The psychiatric nurse practitioner must counsel other providers to put away any
judgment, bias, or negative feelings and work with the patient to find a treatment program that will set
them up for the greatest success. Psycho-social intervention, psychotherapy, and social support are
critical in supporting the substance use addicted pregnant woman and should be a focus of care. The
golden standard for opioid use treatment in this special population is medication assistant treatment
with either buprenorphine or methadone, and continued MAT post-pregnancy (Ecker et al., 2019). A
supportive practitioner should listen to the patient’s goals, and review their past treatment, if the
patient is already stabilized and substance-free with naltrexone, then that should be considered in the
continued treatment of an opioid use disorder. If the patient is against MAT, then the patient should be
counseled towards inpatient detoxification and an increase in support through a residential treatment
program, with outpatient follow-up and potential MAT initiation post-pregnancy.
References
Ecker, J., Abuhamad, A., Hill, W., Bailit, J., Bateman, B. T., Berghella, V., Blake-Lamb, T., Guille, C.,
Landau, R., Minkoff, H., Prabhu, M., Rosenthal, E., Terplan, M., Wright, T. E., & Yonkers, K. A. (2019).
Substance use disorders in pregnancy: Clinical, ethical, and research imperatives of the opioid epidemic:
A report of a joint workshop of the society for maternal-fetal medicine, american college of obstetricians
and gynecologists, and American society of addiction medicine. American Journal of Obstetrics and
Gynecology, 221(1), B5–B28. https://doi.org/10.1016/j.ajog.2019.03.022
Gordon, B., & Uquillas, K. (2021). 877 inpatient buprenorphine induction for opioid use disorder in
pregnancy. American Journal of Obstetrics and Gynecology, 224(2), S544–S545.
https://doi.org/10.1016/j.ajog.2020.12.900
Lappen, J. R., Stark, S., Bailit, J. L., & Gibson, K. S. (2020). Delivery dose of methadone, but not
buprenorphine, is associated with the risk and severity of neonatal opiate withdrawal syndrome.
American Journal of Obstetrics & Gynecology MFM, 2(1), 100075.
https://doi.org/10.1016/j.ajogmf.2019.100075
O’Rourke-Suchoff, D., Sobel, L., Holland, E., Perkins, R., Saia, K., & Bell, S. (2020). The labor and birth
experience of women with opioid use disorder: A qualitative study. Women and Birth, 33(6), 592–597.
https://doi.org/10.1016/j.wombi.2020.01.006
Wachman, E. M., Saia, K., Miller, M., Valle, E., Shrestha, H., Carter, G., Werler, M., & Jones, H. (2019).
Naltrexone treatment for pregnant women with opioid use disorder compared with matched
buprenorphine control subjects. Clinical Therapeutics, 41(9), 1681–1689.
https://doi.org/10.1016/j.clinthera.2019.07.003
Willey, A. S., Pilliod, R. A., Skeith, A. E., & Caughey, A. B. (2018). 217: Opiate detoxification in pregnancy:
A cost-effectiveness analysis. American Journal of Obstetrics and Gynecology, 218(1), S143.
https://doi.org/10.1016/j.ajog.2017.10.145
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