2.3. Secondary outcomes
nausea, fever, paresthesia, vomiting, hypotension, Fever, postoperative headache, Hypotension, NRS
ANESTHESIA COMPLICATIONS, PARESTHESIA, CONTRACTION, STERILE, COMPLICATIONS
The NRS scores of the parturient during uterine contraction before bolus injection of the experimental dose (T0) and the second time (T1), the fifth time (T2), and the tenth time (T3) after bolus injection of experimental dose; the NRS scores at the second stage of labor (T4) and during perineal suture (T5) were recorded. The anesthesia operation time of each parturient was also recorded. The anesthesia operation time was defined as the time from putting on sterile gloves to taking off sterile gloves after puncture. The puncture complications, anesthesia complications, delivery outcome, use of local anesthesia during vaginal suture, and Apgar score of the neonate were recorded for each parturient. The puncture complications included paresthesia, displacement of epidural catheter into the subarachnoid space, and displacement of epidural catheter into the blood vessel. The anesthesia complications included fever, hypotension, nausea and vomiting, lower limb limitation of motion, lower limb paresthesia, postoperative headache, and decreased fetal heart rate. Fever was defined as an increase in maternal body temperature (axillary body temperature >37.3°C) after anesthesia. Limitation of motion in the lower limbs was defined as a Bromage scale score ≥1. Hypotension was defined as a decrease in systolic blood pressure by ≥15% of baseline blood pressure.