Peripartal pain perception and pain therapy: introduction and validation of a questionnaire as a quality instrument

• Published in: Archives of gynecology and obstetrics 2022-06, Vol.305 (6), p.1409-1419
• Main Authors: Linzbach, A., Nitschke, D., Rothaug, J., Komann, M., Weinmann, C., Schleußner, E., Meißner, W., Jimenez Cruz, J., Schneider, U.
• Format: Article
• Language: English
• Subjects: Childbirth & labor; Endocrinology; Gynecology; Human Genetics; Maternal-Fetal Medicine; Medicine; Medicine & Public Health; Obstetrics/Perinatology/Midwifery; Pain; Questionnaires; Vagina
• ISSN: 1432-0711; 0932-0067; 1432-0711
• DOI: 10.1007/s00404-021-06246-w

Background Labor pain is difficult to measure. The aim of this proof-of-concept study is to implement and test a questionnaire assessing pain sensation during and after vaginal deliveries. Its key aspect is a highly standardized survey of patient-reported outcome (PRO) by staff not involved in routine care. Methods Between January and November 2015 339 women were assessed 24–48 h after spontaneous or operative-vaginal delivery of a singleton. German language skills were a prerequisite to participate. The test–retest reliability was calculated in 38 women 24–36 and 48–72 h postpartum between July and October 2017. Primiparae after spontaneous delivery and multiparae with no history of operative deliveries were compared in a subgroup analysis. Results Maximum labor pain and post-partum pain were reported a median of 9 [8–10] and 4 [3–6]. Higher ratings were associated with younger age, higher gestational ages, infant’s biometrics, and the duration of laboring. Only regional analgesia tended to reduce pain perception (NRS 8 vs. 9). Higher-degree injuries were associated with less pain postpartum. The questionnaire proved to be reliable in most aspects (Cronbach's α > 0.6 for 19/21 questions) and showed an acceptable content and criterion validity (Cohen correlation >  ± 0.3, interrelation between items). Conclusion Labor is a very painful experience, irrespective of previous obstetric history. Ratings indicate inadequateness of treatment except for patients receiving preventive postoperative pain management. Systematic postpartum pain assessment, hence, is still a pending issue. Adjustments will be made concerning language skills and specific questions on effectiveness of analgesia otherwise good reliability and validity of the questionnaire were proven.