Opioid-use Disorder, Pregnancy Related
Conditions
Brief summary
This is a prospective observational case-control study comparing quantitative sensory testing data preformed during the third trimester of pregnancy and within 24 hours postpartum in women on medication-assisted treatment for opioid use disorder (OUD) to a gestational age-controlled cohort of women who do not have OUD. The primary goal is to measure elements of quantitative sensory testing including temperature pain threshold, temperature pain tolerance, and thermal and mechanical temporal summation for patients with opioid use disorder on medication-assisted treatment (MAT), and compare these results to gestational age matched controlled pregnant patients not on MAT.
Detailed description
The objective of this study is to measure elements of quantitative sensory testing including temperature pain threshold, temperature pain tolerance, and thermal and mechanical temporal summation for patients with opioid use disorder on medication-assisted treatment (MAT), and compare these results to gestational age matched controlled pregnant patients not on MAT. The hypothesis is that women requiring maintenance opioids during pregnancy will have a significant difference in pain sensitivity in the third trimester and immediately postpartum as compared to women who did not require maintenance opioids during pregnancy.
Interventions
OTHEROUD
History of opioid use disorder.
Sponsors
University of Pittsburgh
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
Subjects that will be included in the prospective cohort group: * individuals at least 18 years of age * at least 28 weeks gestation (third trimester) * on medication-assisted treatment for opioid use disorder, including methadone or suboxone. Patients who will be included in the control group: * individuals at least 18 years of age * at least 28 weeks gestation (third trimester) * have not been on been on opioids in the past 12 months.
Exclusion criteria
* Those who are unable to participate in informed consent discussions, * Unable to give informed consent for any reason, * Not fluent in English (surveys are validated in English language) * Unable to participate fully in all study procedures for any reason including sensory deficits, scar tissue, or infection at any QST sites.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| QST Pain threshold | Completed at a time point antepartum/ before delivery | Quantitative sensory testing is a pain sensitivity test in which the patient will tell the investigator the moment they first feel pain |
| QST Pain Tolerance | Completed at a time point antepartum/ before delivery | Quantitative sensory testing is a pain sensitivity test in which the patient will tell the investigator the moment the sensation becomes uncomfortable. |
| QST Pain Threshold | Completed within 24 hours postpartum/ after delivery | Quantitative sensory testing is a pain sensitivity test in which the patient will tell the investigator the moment they first feel pain |
Countries
United States
Outcome results
None listed