A longitudinal case-control analysis of pain symptoms, fear of childbirth, and psychological well-being during pregnancy and postpartum among individuals with vulvodynia.

Objective: Little research has examined changes in chronic vulvar pain (vulvodynia) symptoms with pregnancy and childbirth, nor fear as it relates to pregnancy/delivery amongst individuals with vulvodynia. The purpose of this study was to examine change in pain symptoms from pregnancy to postpartum amongst women with vulvodynia, as well as pain anxiety, fear of childbirth, and anxiety and depressive symptoms.

Design: Prospective Case-Control Study.

Setting: Online survey.

Participants: Fifty-Seven pregnant individuals with a diagnosis of vulvodynia, and 41 pregnant control participants who reported being free of vulvar pain. Participants were recruited from the community and from hospital-based clinics for this study.

Measurements And Findings: Online surveys were administered to women diagnosed with vulvodynia and pain-free control participants during pregnancy and at three and six months postpartum. The survey contained both investigator-developed items and validated questionnaires, including the Pain Anxiety Symptoms Scale (PASS-20), the Wijma Delivery Expectancy/Experience Questionnaire (W-DEQ) to assess fear of childbirth, the Generalized Anxiety Disorder-7 (GAD-7) measure to assess symptoms of anxiety, and the Patient Health Questionnaire (PHQ-9) to assess symptoms of depression. Linear mixed models with random intercepts for longitudinal analyses indicated statistical improvements for most of the vulvar pain outcomes in the postpartum period amongst women with vulvodynia, including reduced pain intensity at three (p = 0.005) and six months (p = 0.013) postpartum for those women who delivered vaginally. The mean change in pain intensity corresponded though to only a minimal clinical change. Compared to controls, women with vulvodynia reported higher levels of fear of childbirth on the W-DEQ (p = 0.024). In both groups, increases in general anxiety on the GAD-7 were found from pregnancy to three (p = 0.005) and six months (p = 0.033) postpartum. Mode of birth moderated the findings for pain-related anxiety as measured by the PASS-20: only individuals who delivered via caesarean section reported increases in pain anxiety between pregnancy and six months postpartum (p < 0.001).

Key Conclusions: Pregnant women with vulvodynia experienced postpartum improvements in vulvar pain symptoms. Mode of birth may play a role in symptom trajectory.

Implications For Practice: Individuals with vulvodynia often have concerns about how pregnancy and childbirth will impact their symptoms. The current findings can be used to help such individuals make reproductive decisions knowing there may be improvements in vulvar pain and increases in anxiety that can occur postpartum. The statistical versus clinical significance of the pain intensity results also highlight the importance of asking each individual what changes in pain symptoms they experience and the meaning of such changes for that person.