Neuraxial analgesia is the gold standard method for pain relief in labor. Several techniques can optimize both the initiation and maintenance of neuraxial labor analgesia. Initiation techniques such as combined spinal-epidural or dural puncture epidural may offer some advantages over standard epidural insertion. The use of ultrasound to assist with landmarking and optimizing block placement improves neuraxial success, and is particularly useful in certain patient populations. Maintaining labor analgesia with a regimen that includes background programmed intermittent boluses with a patient-controlled epidural analgesia component affords the best combination of pain relief and avoidance of undesired effects. These techniques are most effective when dilute local anesthetics with lipophilic opioids are utilized.
Analgesia* ; Analgesia, Epidural ; Analgesia, Obstetrical ; Analgesia, Patient-Controlled ; Analgesics, Opioid ; Anesthetics, Local ; Humans ; Methods ; Pain Management ; Punctures ; Ultrasonography

Analgesia, Patient-Controlled* ; Anesthesia, Obstetrical*

OBJECTIVE: To explore if acupoint injection can improve analgesic effects or delivery outcomes in parturients who received combined spinal-epidural analgesia (CSEA) and patient-controlled epidural analgesia (PCEA) for labor analgesia. METHODS: A total of 307 participants were prospectively collected from July 2017 to December 2019. The participants were randomized into the combined acupoint injection with CSEA plus PCEA group (AICP group, n=168) and CSEA plus PCEA group (CP group, n=139) for labor analgesia using a random number table. Both groups received CSEA plus PCEA at cervical dilation 3 cm during labor process, and parturients of the AICP group were implemented acupoint injection for which bilateral acupoint of Zusanli (ST 36) and Sanyinjiao (SP 6) were selected in addition. The primary outcome was Visual Analogue Scale (VAS) score, and the secondary outcomes were obstetric outcomes and requirement of anesthetics doses. Safety evaluations were performed after intervention. RESULTS: The VAS scores were significantly lower in the AICP group than in the CP group at 10, 30, 60, and 120 min after labor analgesia (all P<0.05). The latent phase of the AICP group was shorter than that of the CP group (P<0.05). There were less additional anesthetics consumption, lower incidences of uterine atony, fever, pruritus and urinary retention in the AICP group than those in the CP group (all P<0.05). CONCLUSION Acupoint injection combined CSEA plus PCEA for labor analgesia can decrease the anesthetic consumption, improve analgesic quality, and reduce adverse reactions in the parturients. (Registration No. ChiMCTR-2000003120).
Acupuncture Points ; Analgesia, Obstetrical/adverse effects* ; Analgesia, Patient-Controlled/adverse effects* ; Anesthetics/pharmacology* ; Female ; Humans ; Labor, Obstetric ; Pregnancy

No abstract available.
Analgesia, Obstetrical*

BACKGROUNDRopivacaine and levobupivacaine have been introduced into obstetric analgesic practice with the proposed advantages of causing less motor block and toxicity compared with bupivacaine. However, it is still controversial whether both anesthetics are associated with any clinical benefit relative to bupivacaine for labor analgesia. This study aimed to compare the analgesic efficacy, motor block and side effects of bupivacaine, ropivacaine and levobupivacaine at lower concentrations for patient-controlled epidural labor analgesia.

METHODSFour hundred and fifty nulliparous parturients were enrolled in this randomized clinical trial. A concentration of 0.05%, 0.075%, 0.1%, 0.125% or 0.15% of either bupivacaine (Group B), ropivacaine (Group R) or levobupivacaine (Group L) with sufentanil 0.5 microg/ml was epidurally administered by patient-controlled analgesia mode. Effective analgesia was defined as a visual analogue scale score was

RESULTSThere were no significant differences among groups in the numbers of effective analgesia, pain scores, hourly local anesthetic amount used, sensory and motor blockade, labor duration and mode of delivery, side effects and maternal satisfaction (P>0.05). The relative median potency was bupivacaine/ropivacaine: 0.828 (0.602-1.091), bupivacaine/levobupivacaine: 0.845 (0.617-1.12), ropivacaine/levobupivacaine: 1.021 (0.774-1.354), respectively. However, a significantly less number of effective analgesia and higher hourly local anesthetic use were observed in the concentration of 0.05% than those of >or=0.1% within each group (P<0.05).

CONCLUSIONSUsing patient-controlled epidural analgesia, lower concentrations of bupivacaine, ropivacaine and levobupivacaine with sufentanil produce similar analgesia and motor block and safety for labor analgesia. The analgesic efficacy mainly depends on the concentration rather than the type of anesthetics.

Adult ; Amides ; therapeutic use ; Analgesia, Epidural ; methods ; Analgesia, Obstetrical ; methods ; Analgesia, Patient-Controlled ; methods ; Anesthetics, Local ; therapeutic use ; Bupivacaine ; analogs & derivatives ; therapeutic use ; Female ; Humans ; Labor Pain ; drug therapy ; Labor, Obstetric ; Pregnancy ; Sufentanil ; therapeutic use ; Young Adult

OBJECTIVE: To observe effect of magnetic beads auricular point sticking therapy on intrapartum fever in primipara with epidural labor analgesia and explore its possible mechanism. METHODS: A total of 160 primipara were randomly divided into an observation group (80 cases, 12 cases dropped off ) and a control group (80 cases, 15 cases dropped off ). The primipara in the control group received epidural labor analgesia. In the observation group, 15 min after epidural labor analgesia was performed, magnetic beads auricular point sticking therapy was given at shenmen (TF RESULTS: There was no significant difference in tympanic temperature in the observation group at each time point ( CONCLUSION Magnetic beads auricular point sticking therapy can reduce the amount of anesthetics, decrease the effect of epidural analgesia on primipara's body temperature regulation and labor progress, and lower the incidence of fever during labor analgesia by regulating the level of inflammatory response in the primipara.
Analgesia, Epidural ; Analgesia, Obstetrical ; Analgesics ; Cesarean Section ; Female ; Humans ; Labor, Obstetric ; Magnetic Phenomena ; Pregnancy

OBJECTIVE: To explore the effect of epidural labor analgesia duration on the outcomes of different anesthetic approaches for conversion to cesarean section. METHODS: We retrospectively collected the clinical data of pregnant women undergoing conversion from epidural labor analgesia to cesarean section at Sichuan Maternal and Child Health Hospital and Jinjiang District Maternal and Child Health Care Hospital between July, 2019 and June, 2020. For cesarean section, the women received epidural anesthesia when the epidural catheter was maintained in correct position with effective analgesia, spinal anesthesia at the discretion of the anesthesiologists, or general anesthesia in cases requiring immediate cesarean section or following failure of epidural anesthesia or spinal anesthesia. Receiver-operating characteristic curve analysis was performed to determine the cutoff value of the analgesia duration using Youden index. The women were divided into two groups according to the cut off value for analyzing the relative risk using cross tabulations. RESULTS: A total of 820 pregnant women undergoing conversion to cesarean section were enrolled in this analysis, including 615 (75.0%) in epidural anesthesia group, 186 (22.7%) in spinal anesthesia group, and 19 (2.3%) in general anesthesia group; none of the women experienced failure of epidural or spinal anesthesia. The mean anesthesia duration was 8.2±4.7 h in epidural anesthesia, 10.6±5.1 h in spinal anesthesia group, and 6.7 ± 5.2 h in general anesthesia group. Multivariate logistic regression analysis showed that prolongation of analgesia duration by 1 h (OR=1.094, 95% CI: 1.057-1.132, P < 0.001) and an increase of cervical orifice by 1 cm (OR=1.066, 95% CI: 1.011-1.124, P=0.017) were independent risk factors for epidural analgesia failure. The cutoff value of analgesia duration was 9.5 h, and beyond that duration the relative risk of receiving spinal anesthesia was 1.204 (95% CI: 1.103-2.341, P < 0.001). CONCLUSION Prolonged epidural labor analgesia increases the risk of failure of epidural analgesia for conversion to epidural anesthesia. In cases with an analgesia duration over 9.5 h, spinal anesthesia is recommended if immediate cesarean section is not required.
Analgesia, Epidural/adverse effects* ; Analgesia, Obstetrical/adverse effects* ; Anesthesia, Obstetrical ; Cesarean Section ; Child ; Female ; Humans ; Pregnancy ; Retrospective Studies

OBJECTIVETo observe analgesic effect of scalp acupuncture on labor.

METHODSSeventy primiparae with term pregnancy and monocyesis were randomly divided into scalp acupuncture group treated by acupuncture at the Shengzhi area of scalp, and control group by no treatment. Pain grades before and after scalp acupuncture were evaluated with the pain 4-grade rating criteria stipulated by WHO, and the active stage and the second birth process, the Apgar scores of new-born and postpartum hemorrage amount were compared between the two groups.

RESULTSThe labor pain with 1 to approximately 2 grades was found in 33 cases in the scalp acupuncture group, and 2 cases in the control group with very significant difference between the two groups (P < 0.01); the active stage was (130.70 +/- 74.16 ) min and the second birth process was (40.70 +/- 21.65) min in the scalp acupuncture group, and (166.15 +/- 62.65) min and (53.30 +/- 26.93) min in the control group, respectively, with significant differences between the two groups (all P < 0.05); and there were no significant differences in Apgar score of new-born and postpartum hemorrhage amount.

CONCLUSIONScalp acupuncture has a better analgesic effect in vaginal delivery with no adverse effect on the mother and infant.

Acupuncture Analgesia ; Adult ; Analgesia, Obstetrical ; Apgar Score ; Female ; Humans ; Infant, Newborn ; Pregnancy ; Scalp

OBJECTIVE: To observe and evaluate the effects of transcutaneous electrical acupoint stimulation (TEAS) at different time points on postoperative analgesia in perioperative period in patients undergoing shoulder arthroscopic surgery, and to explore the optimal time to use TEAS for shoulder arthroscopic surgery. METHODS: A total of 120 patients undergoing unilateral shoulder arthroscopy under general anesthesia, graded withⅠtoⅡaccording to ASA criteria were randomly divided into 3 groups, 40 patients in each one. The patients in the group A were treated with preoperative TEAS at sham acupoints combined with postoperative TEAS at Hegu (LI 4) and Neiguan (PC 6); the patients in the group B were treated with preoperative TEAS at Hegu (LI 4) and Neiguan (PC 6) combined with postoperative TEAS at sham acupoints; the patients in the group C were treated with TEAS at sham acupoints before and after operation. The parameters of TEAS were dilatational wave, 2 Hz/100 Hz in frequency, 30 min. When the resting-state visual analogue scale (VAS) of incision was more than 3 points, the patient-controlled intravenous analgesia (PCIA) pump of sufentanil was administered to maintain the VAS no more than 3 points. The time point when PCIA pump was firstly used, the used dose of sufentanil and effective pressing number of PCIA pump within 24 hours after surgery were recorded. Intraoperative anesthetic doses were recorded in the three groups. The resting-state and task-state VAS were evaluated at 0, 6, 12, 24 hours after surgery; the patient's satisfaction rate and adverse effects were recorded. RESULTS: The time when PCIA pump was firstly used in the group A and the group B was significantly longer than that in the group C, and the used dose of sufentanil and effective pressing number of PCIA pump within 24 hours after surgery in the group A and group B were significantly less than those in the group C (all <0.05); the incidence of postoperative nausea-vomiting and sore throat was reduced (all <0.05). The time when PCIA pump was firstly used in the group A was significantly longer than that in the group B, and the used dose of sufentanil and effective pressing number of PCIA pump within 24 hours after surgery in the group A were significantly less than those in the group B (all <0.05); no significant difference of the incidence of postoperative nausea-vomiting and sore throat was observed between the group A and group B (both >0.05). There were no statistically significant difference in VAS score at different postoperative time points and postoperative analgesia satisfaction rate between the two groups (all >0.05). CONCLUSION Perioperative TEAS could improve the postoperative analgesia in patients undergoing arthroscopic shoulder surgery, delay the time when PCIA pump is firstly used, reduce the dosage of postoperative analgesics and adverse events. Compared before surgery, postoperative TEAS has better analgesia.
Acupuncture ; Acupuncture Points ; Acupuncture Therapy ; Analgesia, Patient-Controlled ; Arthroscopy ; Humans ; Shoulder ; Transcutaneous Electric Nerve Stimulation

OBJECTIVETo explore the efficacy of electric acupoint stimulation on shivering in cesarean section.

METHODSEighty cases of parturients, under the America Society of Anesthesiologists (ASA) physical status II , were randomized into a transcutaneous electrical acupoint stimulation (TEAS) assisted anesthesia group (group A) and an anesthesia group (group B). Spinal-epidural anesthesia(CSEA) puncture was applied to both groups and 8 mg of 0. 75% bubivacaine was given by spinal injection, the block level was T4 T8. In group A, TEAS was applied before CSEA at paired acupoints-ipsilateral Hegu (LI 4)-Laogong (PC 8) and Sanyinjiao (SP 6)-Zusanli (ST 36) till ending the surgery. The 4 pair of bilateral acupoints were fixed with self-adhesive electrodes and connected with Han's acupoint and nerve stimulator (HANS, LH402H), the frequency was 2 Hz/ 15 Hz, the intensity was 10- 30 mA and the form was densedisperse wave within the patients' tolarance. The heart rate (HR), mean arterial pressure (MAP), oxyhemoglobin saturation (SPO) and shivering degree were recorded before anesthesia (To), 1 min after anesthesia puncture (Ti), 1 min after the delivery (Tz), during abdomen closure (T3) and at the end of surgery (T4).

RESULTSThe occurrence rate of shivering was 35. 0% (14/40) in group A, which was lower to 67. 5% (27/40, P<0. 05) in group B; the degree of shivering was lighter in group A than that in group B at T2, T3 and T4 (all P<0. 01). In group A, HR was faster at T1 and T2 compared to that at To (all P<0. 05), while at T3 and T4, the HR was the same with that before anesthesia (all P>0. 05). In group B, the HR was faster at T1, T2, T3 and T4 compared to that at T0 (P<0. 05, P<0. 01). In both groups, the MAP was lower at T1, T2 (P<0.05,P<0.01) and resumed to that before anesthesia at T3 and T4 (all P>0.05); there was no statistical significance of SPO2 in both groups (all P>0.05).

CONCLUSIONTEAS can reduce the occurrence rate of shivering and steady the heart rate in cesarean section.

Acupuncture Analgesia ; Acupuncture Points ; Adult ; Anesthesia, Obstetrical ; adverse effects ; Cesarean Section ; Female ; Humans ; Pregnancy ; Shivering ; Transcutaneous Electric Nerve Stimulation ; Young Adult