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Repeated Cesarean Delivery Predicted a Higher Risk of Inadequate Analgesia Than Primary Cesarean Delivery: A Retrospective Study with Propensity Score Match Analysis

Authors Yang G, Bao X, Peng J, Li J, Yan G, Jing S, Li H, Duan G

Received 2 September 2019

Accepted for publication 7 March 2020

Published 18 March 2020 Volume 2020:13 Pages 555—563

DOI https://doi.org/10.2147/JPR.S229566

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr E Alfonso Romero-Sandoval


Guiying Yang, Xiaohang Bao, Jing Peng, Jie Li, Guangming Yan, Sheng Jing, Hong Li, Guangyou Duan

Department of Anesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing 400037, People’s Republic of China

Correspondence: Hong Li; Guangyou Duan
Department of Anesthesiology, Second Affiliated Hospital of Army Medical University, Chongqing, People’s Republic of China
Tel +8618323376014
Fax +862368774997
Email lh78553@163.com; dgy1986anesthesia@126.com

Purpose: This study aimed to compare the analgesic outcomes between primary and repeated cesarean delivery.
Patients and Methods: We performed a retrospective analysis based on the medical records of a teaching hospital in China from January 2018 to March 2019. We collected data on demographic characteristics, perioperative complications, anesthesia, and surgical factors for cesarean delivery patients. We also recorded the postoperative analgesic strategy, pain intensity (assessed by the number rating scale) during the first 48 hrs after surgery, hospital cost, and hospital stay. Postoperative inadequate analgesia was defined by a score of ≥ 4 in the number rating scale. Analgesic outcomes after cesarean delivery between primiparas and multiparas were compared using propensity score matching analysis. Moreover, subgroup logistic analysis for different age groups (≥ 35 and < 35 years) was performed to investigate the effect of the maternal category on postoperative inadequate analgesia.
Results: A total of 1543 patients were included in the analysis and 571 pairs (1142 patients) were matched in the primiparas and multiparaparas group according to their propensity score. In both the non-matched and matched cohort, the incidence of inadequate analgesia in the primiparas group was lower than that in the multiparas group (16.7% vs. 24.0%, P < 0.001 and 16.1% vs. 23.5%, P = 0.002; respectively). The multiparas group was identified as being at risk of inadequate analgesia after cesarean delivery in both age groups (age ≥ 35 years, odds ratio: 2.18, 95% confidence interval: 1.20– 3.95; age < 35 years, odds ratio: 1.43, 95% confidence interval 1.08– 1.89).
Conclusion: Multiparas that undergo a repeat cesarean delivery had a significantly higher risk of inadequate postoperative pain treatment than primiparas. The maternal category should be considered when formulating the postoperative analgesia strategy after cesarean delivery.

Keywords: cesarean delivery, analgesia, primipara, multipara


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