Accuracy of variation of epidural labor analgesia in predicting cesarean section

• DOI: 10.3760/cma.j.issn.0254-1416.2018.06.011
• Publication Date: 2018-06-20
• Authors: Chuanbao Han; Dongxi Yuan; Xia Wu; Li Yu; Xiuhong Jiang; Xin Zhou; Xiaolin Wu
• Keywords: Ropivacaine; Youden's J statistic; Bolus (digestion)

Objective To evaluate the accuracy of variation epidural labor analgesia in predicting cesarean section.

Methods A total 1 200 parturients with a single baby who were at full term singleton fetus, aged 22-34 yr, weighing 60-85 kg, American Society Anesthesiologists physical status Ⅰ or Ⅱ, volunteered for pain relief, enrolled study.Epidural (patient-controlled analgesia)was performed when uterine contraction was regular and cervical dilatation 2-3 cm.Patient-controlled solution contained mixture 0.1% ropivacaine fentanyl 2 μg/ml background infusion 9 ml/h, bolus dose 4 ml, lockout interval 15 min.The defined as difference between highest visual analog scale score during 30 min after injection initial local anesthetic.The receiver operating characteristic curve used to section.The optimal cut-off value determined according maximum Youden index.

Results The area under section 0.795, index 53.6%, sensitivity 87.5% specificity 66.1% 3.

Conclusion Variation produces better section.

Key words: Analgesia, obstetrical; Cesarean