Effect Of Epidural Analgesia Research Articles

759. P02.04 PARAVERTEBRAL VERSUS EPIDURAL ANALGESIA IN MINIMALLY INVASIVE ESOPHAGEAL RESECTION (PEPMEN): A RANDOMIZED CONTROLLED MULTICENTER TRIAL

Abstract Background Thoracic epidural analgesia has been the mainstay for pain control in esophageal cancer patients undergoing minimally invasive esophagectomy (MIE). Although effective epidural analgesia potentially contributes to achieving enhanced recovery after surgery (ERAS) goals in patients undergoing MIE, it can have counterproductive side effects such as hypotension, urinary retention and reduced mobility. Paravertebral analgesia may be a promising alternative to epidural analgesia, avoiding potential side effects and improving postoperative recovery. Methods This open randomized controlled superiority trial was conducted across four Dutch centers. A total of 192 patients with esophageal cancer, scheduled for elective transthoracic MIE with intrathoracic anastomosis, were included and randomized to receive either epidural analgesia or paravertebral analgesia. The primary outcome was Quality of Recovery (QoR-40) on the third postoperative day (POD). Secondary outcomes included the quality of life, postoperative pain, opioid consumption, need for inotropic/vasopressor medication, duration of admission, mobilization, complications, readmission, and mortality. Results From December 2019 to February 2023, 94 patients were assigned to epidural and 98 to paravertebral analgesia. QoR-40 score on POD3 did not differ between groups (mean difference 3.7; P=.268). The epidural group had higher QoR-40 scores on POD1 and 2 (mean difference 7.7; P=.018, mean difference 7.3; P=.020) and lower pain scores (1 versus 2; P=<.001, 1 versus 2; P=.033). More patients in the epidural group required vasopressor-medication on POD1 (38.3% versus 13.3%; P<.001). In the paravertebral group, the urinary catheter was removed one day earlier (P=<.001). No significant differences in complications or length of stay were observed. Conclusion This multicenter randomized controlled clinical trial did not show superiority of paravertebral analgesia over epidural analgesia in quality of recovery on the third day after minimally invasive esophagectomy. These results, however, support the safety of paravertebral analgesia as a viable alternative to epidural analgesia, enabling the provision of both techniques to patients in clinical practice.

Effective Epidural Analgesia during Labor: A Feasible Method to Decrease Unnecessary Cesarean Deliveries in Thailand

Thailand has reported a high rate of cesarean delivery (45%–55%), prompting global concern about an increase in cesarean delivery rates. Fear of labor pains is one of the most common reasons pregnant women opt for cesarean delivery. Labor pain is associated with cervix dilation and fetal descent into the birth canal, which is exacerbated by ischemic pain caused by uterine contraction. Modern medical and non-medical techniques have demonstrated efficacy in reducing pain and ensuring safety during labor and delivery. Neuraxial labor analgesia is a highly effective medical pain relief method but has no effect on the rate of cesarean or assisted vaginal delivery. Medication administration for pain relief during labor, using a combination of a local anesthetic and an opioid, was observed to be transmitted across the placenta to the fetus, but had no significant effects on fetal outcomes in mothers who chose epidural analgesia. There are several techniques for administering neuraxial labor analgesia that can be customized for each pregnant woman. To achieve the most wonderful feasible labor and delivery experience, effective epidural labor analgesia is a crucial technique for reducing anxiety and suffering about labor pain. It is safe, widely used world-wide, and effective. Implementing a policy to increase public and medical providers awareness and acceptance of labor pain relief, as well as establishing a safe obstetric anesthesia service provided by obstetric anesthesiologists, could improve maternal and neonatal safety while significantly lowering the rate of unnecessary cesarean deliveries.

Effects of epidural analgesia at 1 cm cervical dilatation on multiparae: A retrospective cohort study using propensity score-matching.

The aim of the present study was to investigate the effects of epidural analgesia (EA) administered at cervical dilatation of 1 cm on multiparae who underwent vaginal delivery. This propensity score-matched retrospective cohort research was conducted between 2021 and 2022. All the singleton multiparae who had previous successful vaginal deliveries and epidural analgesia during this delivery were screened for eligibility. The primary outcome was the effect of EA on the duration of labor. The main secondary outcomes included the incidence of cesarean delivery and umbilical arterial pH. This study incorporated 686 multiparae who were divided into two cohorts: EA 1 (cervical dilatation = 1 cm, n = 166) and EA 2 (cervical dilatation >1 cm, n = 520). In the propensity score-matched cohort (including 164 women in each group), there were no statistically significant differences in the incidence of cesarean delivery (4 [2.4%] vs 4 [2.4%], P = 1.000), umbilical arterial pH (7.28 ± 0.06 vs 7.28 ± 0.07, P = 0.550) and other secondary outcomes between the two groups. Based on a comparative assessment of the women who delivered vaginally to the Kaplan-Meier curves and propensity score-matching (including 160 women in each group), there was no statistical significance in the duration of the first, second and third stages of labor (log rank P, P = 0.811; P = 0.413; P = 0.773, respectively). Initiation of epidural analgesia at cervical dilatation of 1 cm in multiparae did not cause adverse effects with regard to the duration of labor, increased cesarean deliveries, and bad neonatal outcomes.

Impact of Epidural Catheter-Incision Congruency on Postoperative Analgesia after Major Abdominal Surgery: An Observational Study in a Teaching Hospital.

To determine the frequency of appropriate epidural catheter-incision congruency in adult patients undergoing major abdominal surgeries, as well as the frequency of ineffective postoperative analgesia with continuous epidural infusion, side effects, and complications of epidural insertion and epidural catheter infusion. Observational study. Place and Duration of the Study: Department of Anaesthesiology, The Aga Khan University Hospital, Karachi, Pakistan, from September to November 2022. All adult patients who underwent elective major abdominal surgery under general anaesthesia with epidural analgesia were included in this study. Data were collected by chart review of the patients enrolled in Acute Pain Service for the study period. Intraoperative anaesthesia form, epidural infusion form and all records of acute pain service for the postoperative period were reviewed and recorded. One hundred and eighty-two patients were included in this study. The epidural catheter was inserted congruent to the surgical incision i.e. T10-T11 level or above in 43 (23.6%) patients only. In the postoperative period, overall effective epidural analgesia was observed in 79 (43.4%) of the patients. Motor block in lower limbs was observed in 66 (36.26%) of patients in the immediate postoperative period. The present study shows appropriate epidural catheter-incision congruency in only 23.6% of the patients. This could be one of the common reasons for ineffective postoperative pain relief via epidural analgesia in 56.6% of patients. Epidural catheter insertion site, Major abdominal surgeries, Postoperative analgesia.

Optimum programmed intermittent epidural bolus interval time of ropivacaine 0.0625% with dexmedetomidine 0.4μg/ml at a fixed volume of 10mL: a randomized controlled trial.

The aim of our study was to administer adequate local anesthetic in programmed intermittent epidural bolus (PIEB) to avoid breakthrough pain and decrease the use of manual and PCEA boluses. We, therefore, conducted this study to determine the effective PIEB interval time between boluses of ropivacaine 0.0625% with dexmedetomidine 0.4μg/ml at a fixed volume of 10mL in 90% of subjects (EI90), without the use of patient-controlled epidural analgesia (PCEA). A total of 80 subjects were included in the final statistical analysis from 23 August 2022 to 22 November 2022. The subjects were randomly assigned to one of four different PIEB time intervals: 40, 50, 60, and 70min (groups 40, 50, 60, and 70), respectively. The primary outcome was the effective epidural labor analgesia, defined as no use of PCEA bolus or a manual bolus until the end of the first stage of labor or within 6hours after loading dose administration. The PIEB EI90 (95% CI) between boluses of ropivacaine 0.0625% with dexmedetomidine 0.4μg/ml at a fixed volume of 10mL was estimated using probit regression. The effective PIEB interval time between boluses of ropivacaine 0.0625% with dexmedetomidine 0.4μg/ml at a fixed volume of 10mL in 90% of subjects without the use of PCEA was 45.4 (35.5-50.5) minutes using probit regression. No statistical differences were found in the proportion of subjects with Bromage score > 0, hypotension, pruritus, nausea, and vomiting between groups. However, the highest sensory block (pinprick) in the 40-min group was significantly higher than that in the other groups. The estimated value for EI90 for PIEB between boluses of ropivacaine 0.0625% with dexmedetomidine 0.4μg/ml at a fixed volume of 10mL using probit regression was 45.4 (35.5-50.5) minutes. Furthermore, future studies are warranted to be established to determine the optimal parameters for different regimens in clinical practice.

Does Early Initiation of Labor Epidural Analgesia Affect Labor Outcomes? A Randomized Clinical Trial

Background: Although epidural analgesia (EA) is a popular and effective method for pain relief during labor, significant controversy exists in terms of the impact of EA on labor outcomes and the best time for initiation of EA. Here, we aim to explore the effects of early initiation EA on the labor process in nulliparous at-term pregnant women.
 Methods: A total of 240 nulliparous women enrolled in this study. The early epidural (EE) group (n=120) consisted of women in the latent phase of labor and the late epidural (LE) group (n=120) were in the active phase of labor. Each group received 16 ml of 0.125% preservative-free isobaric bupivacaine with 50 µg fentanyl (total: 17 ml) as a primary bolus dose in the epidural space for labor analgesia and an intermittent bolus of 5-10 ml of the primary solution was administered via a catheter. The length of labor, rate of cesarean section (CS), neonatal well-being, and infant Apgar scores were recorded.
 Results: There were no statistically significant differences between the two groups regarding the duration of the first (p=.43) and second (p=.54) phases of labor. No statistically significant differences were observed between the two groups in terms of the rate of CS (p=.21), causes for CS (p=.24), and neonatal Apgar scores (p=0.84).
 Conclusion: Initiation of EA during early labor did not result in increased CS or instrumental vaginal deliveries, and did not prolong labor duration.

The Effect of Epidural Analgesia on Quality of Recovery (QoR) after Open Radical Nephrectomy: Randomized, Prospective, and Controlled Trial.

No studies are currently evaluating the quality of recovery (QoR) after open radical nephrectomy (ORN) and epidural morphine analgesia. This was a randomized, prospective, and controlled study that explored the QoR on the first postoperative day after ORN. Eighty subjects were randomized into two groups. The first group received general anesthesia combined with epidural anesthesia and postoperative epidural analgesia with morphine and ropivacaine. The second group received general anesthesia and continuous postoperative intravenous analgesia with tramadol. Both groups received multimodal analgesia with metamizole. The primary outcome measure was the total QoR-40 score. The secondary outcome measures were QoR-15, QoR-VAS, and the visual analog scale (VAS) for pain, anxiety, and nausea. The median difference in the QoR-40 score after 24 postoperative hours between the two groups of patients was 10 (95% CI: 15 to 5), p < 0.0001. The median score and IQR of QoR-40 during the first 24 postoperative hours in the epidural group was 180 (9.5), and in the control group, it was 170 (13). The general independence test for secondary outcomes between groups was significant (p < 0.01). QoR-VAS was correlated with QoR-40 (r = 0.63, p ≤ 0.001) and with QoR-15 (r = 0.54, p ≤ 0.001). The total QoR-40 and QoR-15 alpha coefficients with a 95% CI were 0.88 (0.85-0.92) and 0.73 (0.64-0.81), respectively. There was a significant difference in the QoR between the epidural and the control groups after ORN. The QoR-40 and QoR-15 showed good convergent validity and reliability.

Effect of epidural analgesia on cervical ripening using dinoprostone vaginal inserts.

To clarify whether the duration from cervical ripening induction to labor onset is prolonged when epidural analgesia is administered following application of dinoprostone vaginal inserts vs. cervical ripening balloon. This retrospective study included mothers with singleton deliveries at a single center between 2020-2021. Nulliparous women who underwent labor induction and requested epidural analgesia during labor after 37weeks of gestation were included. The duration from cervical ripening induction to labor onset was compared between women using a dinoprostone vaginal insert and those using a cervical ripening balloon and between women who received epidural analgesia before and after labor onset. In the dinoprostone vaginal insert group, the duration was significantly shorter in the subgroup that received epidural analgesia after labor onset (estimated median, 545 [95% confidence interval: 229-861min]) than the subgroup that received it before labor onset (estimated median, 1,570 [95% confidence interval: 1,226-1,914] min, p = 0.004). However, in the cervical ripening balloon group, the difference between subgroups was not significant. The length of labor among the groups was also not significantly different. Epidural analgesia as labor relaxant adversely affected the progression of uterine cervical ripening when dinoprostone vaginal inserts were used, whereas it did not affect cervical ripening when a mechanical cervical dilatation balloon was used. The present results are significant for choosing the appropriate ripening method.

Use of the narcotic analgesic fentanyl to correct violations of the autonomic regulation of childbirth

Background. The problem of effective prolonged epidural analgesia (PEA) in case of hypotonic labor, which allows minimal intervention in the process of labor activity while providing adequate analgesia, remains unresolved. A study was conducted to increase the effectiveness of PEA use during the first state of childbirth in women with hypotonic labor. The purpose: to increase the effectiveness of prolonged epidural analgesia in case of hypotonic labor during vaginal childbirth. Materials and methods. We performed analgesia to 60 women with a diagnosis of stage 1 hypotonic labor who were divided in 2 groups: the main one (n = 35) and the controls (n = 25). ASA status in both groups was I–II. In both groups, the epidural space was punctured at L1-L2. A test 4-ml dose of 2% lidocaine solution was administered and 5 minutes after, the epidural catheter was inserted. Then, in the main group, 1 ml of fentanyl solution and 6 ml of 0.9% NaCl were injected into the epidural space; in the control group, 6–8 ml of 0.125% bupivacaine solution. The effectiveness was evaluated according to the visual analogue scale, hemodynamic changes and the outcome of childbirth (conservative or operative). The condition of the fetus was assessed according to cardiotocography data. Statistical processing of the material was carried out using Excel. Results. The use of fentanyl in 69 % of cases allowed finishing the birth conservatively, the condition of the fetus and newborn was considered satisfactory. In the control group, 72 % of births resulted in cesarean section. Indications for surgery were hypotonic labor and fetal distress. Conclusions. The use of the narcotic analgesic fentanyl for prolonged epidural analgesia in hypotonic labor effectively relieves pain and increases the likelihood of conservative childbirth. It is safe for mother, fetus and newborn.

Epidural analgesia: effect on labor duration and delivery mode - a single-center cohort study.

Parturients in labor experiencing severe pain may develop several complications, which could be avoided using various forms of labor analgesia. Researchers hold divergent opinions about the effect of epidural analgesia (EA) on labor duration and delivery mode. This paper aims to establish if EA affects the duration of the 1st and the 2nd phase of labor and the percentage of emergency Cesarean sections (CS) and instrumental delivery. The patients in this cohort study were recruited at St. Sophia's Specialist Hospital in Warsaw, between 1/1/2020 and 6/1/2020. We used following inclusion criteria: patients aged 18-40 with singleton pregnancies and cephalic presentation of the fetus who gave live birth at a gestational age of 37-42 weeks to neonates with birthweight 2500-4250 g and received EA at the cervical dilation between three and six centimeters. The control group didn't receive anesthesia. We excluded planned CS and vaginal births after CS. Data analysis was performed for all parturients and separately for multiparas and nulliparas. Results Out of 2550 deliveries, we included 1052 patients - 443 participants with EA and 609 in the control group. Patients with epidural analgesia experienced longer labor 415 vs 255 min (p < 0.01), longer 1st and 2nd stage (p < 0.01). They had a lower risk of emergency CS (OR = 0.56) (p < 0.01) but were more likely to have instrumental delivery. EA prolongs the first and the second stage of labor yet doesn't affect neonatal outcomes. Moreover, the risk of emergency CS in nulliparas with EA is three times lower.

WOMEN’S SOURCES OF INFORMATION AND KNOWLEDGE ABOUT EPIDURAL ANALGESIA

Labor pain is one of the greatest pains experienced by women throughout their life. Relief of this pain is an important issue for women in labor [1]. Epidural analgesia is the most effective pain relief method and is considered the gold standard of labor analgesia [2]. Nevertheless, scientific studies reveal limited parturient knowledge about epidural anesthesia [3,4]. This study has been conducted to assess the knowledge, sources of information, and attitudes regarding epidural analgesia among young mothers. The study was conducted at the Hospital of Lithuanian University of Health Sciences Kaunas Clinics. The study took place in November 2022 by using a pre-designed questionnaire. A total of 102 questionnaires were distributed to parturient and 100 were returned, the response rate was 98%. The study shows that more than two-thirds of women agree that epidural analgesia is the most effective method for labor pain management. The internet remains the main source of information for women. The demographic variables were not associated with the desire to request epidural analgesia in the future. Women who know about the effectiveness of epidural analgesia are more likely to choose an epidural in the future. Therefore, it is important to provide more information about the methods of labor pain relief to women during pregnancy.

Postoperative effects and complications of intrathecal morphine compared to epidural analgesia in patients undergoing intracorporeal robot-assisted radical cystectomy: a retrospective study

BackgroundAnalgesia after robot assisted radical cystectomy aims to reduce postoperative pain and opioid consumption, while facilitating early mobilization and enteral nutrition and minimizing complications. Epidural analgesia is currently recommended for an open radical cystectomy, but it is unclear if intrathecal morphine is a suiting, less-invasive alternative for a robot-assisted radical cystectomy.MethodsThe analgesic method of choice changed from epidural anesthesia to intrathecal anesthesia for patients undergoing a robot-assisted radical cystectomy. This single-center retrospective study aims to investigate if there is a difference between epidural and intrathecal analgesia in postoperative pain scores, opioid consumption, length of hospital stays and postoperative complications. An Propensity Matched Analysis was added to conventional analysis to consolidate the findings.ResultsThe study population consisted of 153 patients of whom 114 received an epidural catheter with bupivacaine/sufentanil and 39 received a single shot of intrathecal bupivacaine/morphine. Mean pain scores on the first two postoperative days (POD) were slightly higher in the intrathecal analgesia group (epidural versus intrathecal analgesia, NRS POD0: 0(0–2)[0–8] versus 1(0–3)[0–5], p = 0.050; POD1: 2(1–3)[0–8] versus 3(1–4)[0–7], p = 0.058; POD2: 2(0–3)[0–8] versus 3(2–4)[0–7], p = 0.010). Total postoperative morphine consumption was similar over the first seven days: 15 mg (5–35)[0–148] in the epidural group versus 11 mg (0–35)[0–148] in the intrathecal morphine group, p = 0.167. Length of hospital stay and time until fit for discharge where slightly higher in the epidural group (respectively 7 days (5–9)[4–42] versus 6 days (5–7)[4–38], p = 0.006, and 5 days (4–8)[3–30]) versus 5 days (4–6)[3–34], p = 0.018). There was no further difference in postoperative course.ConclusionsThis study showed that the effects of epidural analgesia and intrathecal morphine are comparable and that intrathecal morphine may be a suiting alternative for epidural analgesia.

The Effect of Epidural Analgesia on Maternal and Early Neonatal Outcomes: A Retrospective Cohort Study in Qatar

Introduction: One of the most effective methods to reduce labor pain at the present time is Epidural analgesia. We aim to describe the maternal and neonatal morbidities associated with labour epidural analgesia.

The Effect of Epidural Analgesia on Quality of Recovery (QoR) after Radical Prostatectomy.

No studies are currently regarding the quality of recovery (QoR) after open radical prostatectomy (ORP) and epidural morphine analgesia. This was a randomized, prospective, and controlled study that explored QoR on the first postoperative day after ORP. Sixty-one men were randomized into two groups. The first (epidural) group received general anesthesia combined with epidural anesthesia and postoperative epidural analgesia with morphine and ropivacaine. The second (control) group received general anesthesia and continuous postoperative intravenous analgesia with tramadol. Both groups received multimodal analgesia with metamizole. The primary outcome measure was the total QoR-40 score. Secondary outcome measures were: QoR-15, QoR-VAS and the visual analogue scale (VAS) for pain, anxiety and nausea. The median difference in the total QoR-40 score after 24 postoperative hours between the two groups of patients was 2 (95% CI: -3 to 8), p = 0.35. The global multivariate inference test for secondary outcomes between groups was not significant p &gt; 0.05). QoR-VAS was correlated with QoR-40 (r = 0.69, p ≤ 0.001) and with QoR-15 (r = 0.65, p ≤ 0.001). The total QoR-40 and QoR-15 alpha coefficient with 95% CI was 0.88 (0.83-0.92) and 0.83 (0.77-0.89), respectively. There was no difference in the QoR between the epidural and the control group after ORP. The QoR-40 and QoR-15 showed good convergent validity and adequate reliability.

The Effect of Epidural Analgesia on Labour and Neonatal and Maternal Outcomes in 1, 2a, 3, and 4a Robson's Classes: A Propensity Score-Matched Analysis.

Background: Lumbar epidural analgesia (EA) is the most commonly used method for reducing labour pain, but its impact on the duration of the second stage of labour and on neonatal and maternal outcomes remains a matter of debate. Our aim was to examine whether EA affected the course and the outcomes of labour among patients divided according to the Robson-10 group classification system. Methods: Patients of Robson’s classes 1, 2a, 3, and 4a were divided into either the EA group or the non-epidural analgesia (NEA) group. A propensity score-matching analysis was performed to balance the intergroup differences. The primary goal was to analyse the duration of the second stage of labour. The secondary goals were to evaluate neonatal and maternal outcomes. Results: In total, 21,808 cases were analysed. The second stage of labour for all groups was prolonged using EA (p < 0.05) without statistically significant differences in neonatal outcomes. EA resulted in a lower rate of episiotomies in nulliparous patients, with a higher rate of operative vaginal deliveries (OVD) (p < 0.05) and Caesarean sections (CS) (p < 0.05) in some classes. Conclusions: EA prolonged the duration of labour without affecting neonatal outcomes and reduced the rate of episiotomies, but also increased the rate of OVDs.

Influence of anesthetic technique on survival after tumor debulking surgery of elderly patients with ovarian cancer: Results of a retrospective cohort study.

Epidural analgesia could influence the postoperative oncologic outcomes in patients with specific types of non-metastatic solid neoplasms. The present study aimed to investigate the impact of anesthetic technique on survival in elderly patients with ovarian cancer (OC). The records of all women with OC older than 60 years of age undergoing tumor debulking surgery at the University Medical Center of the Johannes Gutenberg University Mainz (Mainz, Germany) between January 2008 and December 2019 were obtained. The study cohort was divided into two groups based on the use of perioperative epidural anesthesia or not. First, Kaplan-Meier analysis was performed to analyze the prognostic influence of anesthetic technique on survival. Second, multivariate Cox proportional hazards model was adjusted for multiple conventional prognostic factors concerning three main categories: i) Current clinical-pathological tumor characteristics; ii) anesthesiologic parameters, including mean age, American Society of Anesthesiologists Performance Status and preexisting comorbidities summarized in the Charlson Comorbidity Index; and iii) oncological and surgical parameters such as oncological radicality and Surgical complexity Score. A total of 110 patients were included in the study and 71 (64.5%) of them received epidural analgesia. The median survival time was 26.0 months from primary debulking surgery and no significant differences in progression-free (PFS) and overall survival (OS) were noted between the ‘Epidural’ and ‘non-Epidural’ cohorts. After adjustment for the selected risk factors from the three categories, the effects of epidural analgesia on PFS and OS remained non-significant [PFS: hazard ratio (HR), 1.26; 95% CI, 0.66–2.39; and OS: HR, 0.79; 95% CI, 0.45–1.40]. The present results did not support the independent association between epidural-supplemented anesthesia and improved PFS or OS in elderly patients with standardized ovarian cancer debulking surgery.

Epidural analgesia associations with depression, PTSD, and bonding at 2 months postpartum

The research aim was to study the possible effect of epidural analgesia, as well as other possible demographic/obstetric variables and subjective birth experience on postpartum depression, PTSD, and impaired bonding. This was a longitudinal study of 254 women who gave birth at the maternity wards of a large tertiary health center and responded to questionnaires at T1 (Childbirth Experience Questionnaire and level of fatigue question; in person, 1–4 days postpartum) and at T2 (Postnatal Depression Scale, Postpartum Bonding Questionnaire, and the City Birth Trauma Scale; online-two months postpartum). Obstetric and demographic data were taken from medical files. Having a previous psychiatric diagnosis and higher levels of fatigue significantly predicted worse outcomes in all measures (level of fatigue was not associated with the City Birth Trauma birth-related symptoms factor). Having higher education, being primiparous, worse birth experience, and longer second stage of birth predicted worse outcomes in some measures. Although epidural administration had no effect on any of the outcome variables, special attention should be devoted to women who had long second-stage births and/or suffering from postpartum fatigue to prevent postpartum psychopathology. In addition, demographic variables, such as primiparity, education, and prior psychopathology diagnosis should be considered to treat women and prevent postpartum psychopathology.

Comparison of Effect of Meperidine Versus Fentanyl as an Adjuvant to Epidural Bupivacaine on Duration of Labor: A Randomized Controlled Study

Epidural analgesia (EA) is one of the best pain relief for many pregnant women in labor. This study was conducted to evaluate the effect of epidural analgesia provided by a combination of bupivacaine plus meperidine or fentanyl on the mother, fetus, and labor process in term nulliparous women. A total of 558 nulliparous women were randomized into two groups of 279 subjects. The BF (Bupivacaine-Fentanyl) group received 16 ml bupivacaine 0.125% plus 50 mg fentanyl as a loading dose; then, an intermittent bolus of the same solution was administered once the patient requested analgesia. The BM (Bupivacaine-Meperidine) group received a loading dose of 16 ml bupivacaine 0.125% plus 20 mg meperidine followed by an intermittent bolus of the same solution if the patient requested analgesia. The time of labor phases 1 and 2 and the incidence of side effects were recorded. After the intervention, the pain score was significantly lower in the meperidine group compared to the fentanyl group during labor (P=0.006). The duration of the active phase of labor (P=0.04) and the rate of cesarean section (P=0.01) were significantly higher in the fentanyl group compared to the meperidine group. The duration of the second stage of labor was not significantly different between the two groups (P=0.24). Apgar score was significantly higher in the meperidine group. This study found that epidural meperidine could be a suitable alternative to fentanyl for improving pain relief and shortening the active phase of delivery without increasing the risk of the neonatal low Apgar score.

Effects of Using Epidural Analgesia during Delivery on Maternal and Infant Outcomes

Objectives: The aim of the study was to estimate the impact of epidural analgesia (EA) during delivery on maternal and infant outcomes. Design: This was a prospective cohort study. Participants: In total, 159 pregnant multiparas in Women and Children’s Hospital, School of Medicine, Xiamen University from November 2019 to May 2020 were enrolled. Patients were divided into the EA group (n = 80) and no analgesia group (n = 79) based on the choice of the parturients. Methods: The duration of labor, levels of umbilical arterial blood gas (pH and partial pressure oxygen), visual analog score (VAS), and adverse events were evaluated to compare differences between the EA group and no analgesia group, respectively. Results: The duration of labor was prolonged in the entire labor (p = 0.002), and the first stage (p = 0.001) in the EA group compared with the no analgesia group. The second stage of labor and third stage of labor, levels of umbilical arterial blood gas, and 1-min Apgar score in neonates were similar in EA and no analgesia groups (All p > 0.05). After adjusting age, prepregnancy body mass index, and past and present medical history, the VAS was low in the EA group compared with the no analgesia group when the uterine orifice was completely open (odds ratio [OR] = 0.001, 95% confidence interval [CI]: 0.001–0.002), 8 h postdelivery (OR = 0.508, 95% CI: 0.264–0.977), and 24 h postdelivery (OR = 0.321, 95% CI: 0.167–0.617). EA increased the proportion of adverse events occurring 5 min postdelivery (χ2 = 10.137, p = 0.001), while decreased the proportion of adverse events occurring 24 h postdelivery (χ2 = 4.750, p = 0.029). Limitations: In terms of the effects of EA on neonates, we only measured the 1-min Apgar score of neonates. Conclusions: EA might be a reliable pain relief method for pregnant women. The results of our study might give a reference for the use of EA during delivery in clinic.

Anesthesia and breastfeeding

The importance of breastfeeding with its positive impact on the wellbeing of the mother-infant pair is well established. Anesthesiologists should encourage the promotion of lactation by being willing to give reassurance during the preoperative period and preparing a plan that does not interfere with safe breastfeeding. There is concern regarding the transfer of drugs into breast milk, which may lead to inconsistent advice from many health professionals and to early discontinuation. However, evidence shows that most anesthetic drugs are safe in terms of transfer into breast milk, and hence, compatible with breastfeeding, which should be resumed after anesthesia as soon as the mother is alert and feels well enough to hold her infant, without the need to “pump and dump”. This review provides pharmacokinetic information on commonly used anesthesia drugs and their passage into breast milk, to help practitioners discuss risks and benefits with the mother, emphasizing that anesthesia should not interfere with the benefits of breastfeeding. Four practical clinical scenarios are presented: pregnant women concerned about the effect of epidural analgesia on subsequent breastfeeding, spinal anesthesia for c-section and lactation, patients who will receive general anesthesia during cesarean section, and finally women who are breastfeeding and require anesthesia for elective or urgent surgery. Neuraxial anesthesia allows for better pain control and immediate skin-to-skin contact at the time of childbirth. Also, it interferes the least with the woman’s ability to care for her infant. Regional techniques, opioid-sparing techniques and outpatient surgery are preferred. Drugs such as opioids and longer-acting benzodiazepines should be administered cautiously, particularly in repeat doses.