Effect of epidural labor analgesia on hyperalgesia in early postpartum period
10.3760/cma.j.cn131073.20190805.00317
- VernacularTitle:硬膜外分娩镇痛对产妇产后早期痛觉过敏的影响
- Author:
Xin YE
1
;
Yu CHEN
;
Yanqing CHEN
Author Information
1. 福建省立医院麻醉科，福州 350001
- From:
Chinese Journal of Anesthesiology
2020;40(3):323-325
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effect of epidural labor analgesia on hyperalgesia in the early postpartum period.Methods:Ninety nulliparas of primigravid, of American Society of Anesthesiologists physical statusⅠor Ⅱ, aged 20-35 yr, who were at full term with a singleton fetus, at 38-41 weeks of gestation, were assigned to labor analgesia group (group LA, n=38) and labor group (group L, n=52) according to whether the patient requested epidural labor analgesia or not.Epidural labor analgesia was performed when the cervical dilatation was 3-4 cm in LA group.The mechanical pain threshold was measured on admission to the delivery room and at days 1, 2 and 3 after delivery.Visual analog scale scores were assessed and recorded when cervical dilatation was 3 cm (T 1), at complete cervical dilatation (T 2), and at 12, 24 and 48 h after delivery (T 3-5). The duration of the first and second stage of labor and amount of intrauterine bleeding 2 h after delivery were recorded.Apger scores at 1, 5 and 10 min after birth were recorded. Results:Fifty-one cases completed surgery in group L and 37 cases in group LA.Compared with group L, the mechanical pain threshold was significantly increased, and visual analog scale score at T 2-4 was decreased, the first and second stages of labor were prolonged( P<0.05), and no statistically significant change was found in intrauterine bleeding volume or Apgar score at 2 h after delivery in group LA( P >0.05). Conclusion:Epidural labor analgesia can reduce hyperalgesia in the early postpartum period.
