4.4 Article

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

Journal

ARCHIVES OF GYNECOLOGY AND OBSTETRICS
Volume 305, Issue 6, Pages 1409-1419

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s00404-021-06246-w

Keywords

Labor pain; Questionnaire; Pain measurement; Pain therapy; Vaginal birth; NRS-numeric rating scale

Funding

  1. Projekt DEAL

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Labor pain is a highly significant experience for women, with factors such as younger age, longer gestational age, and longer labor duration contributing to higher pain perception. Regional analgesia shows some potential in reducing pain perception. The questionnaire used in this study demonstrated good reliability and validity.
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 alpha > 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.

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