Predicting Severity of Acute Pain After Cesarean Delivery: A Narrative Review

Cerebrospinal fluid proteome of patients with persistent pain and/or postpartum depression after elective cesarean delivery: An exploratory prospective cohort study

BACKGROUND

Persistent pain (>2 months) after cesarean delivery (CD) can affect up to 20 % of patients, and is associated with increased risk for postpartum depression (PPD). Preoperative identification of patients at risk for persistent pain and PPD remains a challenge due to poorly understood underlying mechanisms. To better understand these potential mechanisms, here, we examined the preoperative cerebrospinal (CSF) proteome for changes associated with persistent pain or PPD at 3 months post-CD.

METHODS

Eighty patients undergoing elective CD under neuraxial anesthesia were recruited. We collected baseline demographics, obstetric data, and Edinburgh Postnatal Depression Scale (EPDS) scores. EPDS and pain scores were also obtained at 3 months post-CD. CSF was collected before spinal anesthetic placement. Liquid chromatography coupled with tandem mass spectrometry was used to study the CSF proteome.

RESULTS

63 patients completed clinical follow-up, however only 61 of the patients had adequate preoperative CSF sample for analysis. Of these 61 patients, 21 developed pain or PPD at 3 months post-CD (14 had persistent pain alone and 7 had PPD alone). Over 1600 proteins were quantified in each CSF sample. Forty-three of these proteins were nominally differentially expressed in patients with persistent pain and/or PPD vs those with neither disorder. Pathway analysis showed a downregulation of the complement and coagulation cascades in the preoperative CSF of patients who later developed persistent pain or PPD 3 months after CD.

CONCLUSIONS

These results suggest that the CSF complement and coagulation cascades may play a role in patients who develop postpartum pain or PPD 3 months later.

Effects of esketamine-sufentanil for patient-controlled intravenous analgesia in women following cesarean section: A randomized clinical trial

Background

Postoperative pain following cesarean section can cause maternal anxiety, limited ambulation, and even postpartum depression. In this study, we aimed to investigate the effects of esketamine for postoperative patient-controlled intravenous analgesia in women following cesarean section.

Methods

One hundred women were randomly assigned to two groups. The esketamine group received 1 mg⋅kg-1⋅d-1 of esketamine +1 µg⋅kg-1⋅d-1 of sufentanil for intravenous postoperative analgesia, and the control group received 1 µg⋅kg-1⋅d-1 of sufentanil for intravenous analgesia. The primary outcome was the pain intensity during the postoperative 24 h, and it was assessed using a visual analog scale (VAS). The secondary outcomes included hemodynamic parameters, total consumption of analgesics, blood loss, and drug-related side effects (hypotension, hypertension, bradycardia, nausea, and vomiting).

Results

The VAS scores at rest were lower in the esketamine group than in the control group during the postoperative 6 h-24 h (p < 0.05), and the VAS scores at cough in the esketamine group were lower during the postoperative 4 h-24 h (p < 0.05). There were significant differences at blood loss during the postoperative 24 h (137.6 ± 33.0 vs 159.6 ± 41.3 mL, p = 0.004). Blood pressure and heart rate were greater in the esketamine group than in the control group during the postoperative 8 h-24 h (p < 0.05). The incidence of nausea and vomiting was significantly lower in the esketamine group than in the control group (4% vs 18%, p = 0.025).

Conclusion

This study indicated that esketamine not only improved postoperative pain but also reduced postpartum blood loss and the incidence of nausea and vomiting in women undergoing cesarean section (registration number: ChiCTR2400082094).

Systematic Review Registration

https://www.chictr.org.cn, Identifier ChiCTR2400082094.

Intrathecal morphine vs. Ultrasound-guided bilateral posterior quadratus lumborum block in caesarean delivery

BACKGROUND

Effective postoperative pain management is crucial in caesarean delivery (CD) to enhance recovery, minimize opioid use, and improve maternal outcomes. Intrathecal morphine (ITM) is widely used but can cause side effects, such as pruritus and nausea. Posterior quadratus lumborum block (QLB) has emerged as a potential alternative for postoperative analgesia. This study compared the analgesic efficacy and side-effect profiles of ITM and posterior QLB in patients with CD.

METHODS

This prospective observational study included parturients who underwent elective CD under spinal anesthesia. Participants were allocated to receive either ITM (100 µg) or bilateral posterior QLB with 0.25% bupivacaine (25 mL per side). The primary outcome was cumulative intravenous morphine consumption 24 h post-surgery. The secondary outcomes included NRS pain scores at rest and during activity at 0, 3, 6, 12, and 24 h, the time to first opioid request, the number of patients requiring rescue analgesia, nausea and vomiting scores, pruritus scores, and scores on the Obstetric Quality of Recovery Scale (ObsQoR-11 T) at 24 h and 48 h postoperatively.

RESULTS

Sixty patients were included in the analysis, with 30 patients in each group. The primary outcome, 24-h cumulative intravenous morphine consumption, was comparable between the ITM and posterior QLB groups (6 [10] mg vs. 8.2 [7.1] mg, p = 0.134). The secondary outcomes, including NRS pain scores at rest and during activity, time to first opioid request, number of patients requiring rescue analgesia (1 vs. 0; p = 0.313), nausea and vomiting scores, pruritus scores (0 [1] vs. 0 [0]; p = 0.234), and ObsQoR-11 T scores at 24 h (95.5 [14] vs. 87.5 [16]; p = 0.49) and 48 h (102 [13] vs. 97 [18]; p = 0.203), were not significantly different between the groups.

CONCLUSION

Both ITM and posterior QLB provide effective postoperative analgesia in patients with CD, with comparable analgesic outcomes and side-effect profiles. ITM remains a practical choice because of its ease of administration, whereas subsequent QLB serves as a viable alternative for patients intolerant to neuraxial opioids.

Postoperative Cesarean Section Pain Management Using Transversus Abdominis Plane Block Versus Intrathecal Morphine: A Systematic Review and Meta-analysis

PURPOSE

Compare and evaluate the effectiveness of transversus abdominis plane (TAP) block versus intrathecal morphine (ITM) on elective postcesarean section pain, opioid consumption, and related side effects.

DESIGN

Systematic review and meta-analysis.

METHODS

A search for evidence was conducted in PubMed, Google Scholar, CINAHL, Cochrane Collaboration Database, UpToDate, Health Source, and gray literature. Only randomized controlled trials (RCTs) were included in the study. The methodological quality of evidence assessment was conducted using the Risk of Bias and Grades of Recommendation, Assessment, Development, and Evaluation system. The meta-analysis used Review Manager (RevMan 5.4, The Cochrane Collaboration).

FINDINGS

A total of 11 RCTs involving 1,129 patients were analyzed. Compared to ITM, TAP has a similar effect on static (mean difference [MD]; 0.37; 95% confidence interval [CI], -0.04 to 0.79; P = .08) and dynamic pain scores (MD, 0.43; 95% CI, -0.06 to 0.92; P = .09) within the first 48 hours after surgery. Additionally, the TAP block had a lower incidence of postoperative nausea and vomiting (risk ratio, 0.45; 95% CI, 0.31 to 0.66; P < .0001) and increased opioid consumption (MD, 6.78; 95% CI, 3.79 to 9.77; P < .00001). Overall, TAP block and ITM did not differ in the time to first to rescue analgesia, incidence of sedation, and pruritus.

CONCLUSIONS

Evidence suggests that TAP blocks are equivalent to ITM in pain scores and more effective at lowering the incidence of postoperative nausea and vomiting, yet ITM has been shown to be more effective in reducing postoperative opioid consumption.

Effects of acupressure on pain and first mobilisation distance after caesarean section: A double-blind randomised controlled study

BACKGROUND

Postoperative pain is one of the most common problems after caesarean section (CS). Pain reduction and effective mobilisation after CS positively affect maternal and infant health.

AIM

This study aimed to determine the effects of acupressure applied to women after CS on pain intensity and first mobilisation distance.

METHODS

The sample of this prospective, two-armed (1:1), double-blind randomised controlled clinical trial consisted of 64 women undergoing CS (32 acupressure and 32 placebo acupressure group). The data were analysed using descriptive statistics, chi-square test, independent-groups t-test, Mann-Whitney U test, repeated-measures two-way analysis of variance (ANOVA) and simple main-effects analysis.

RESULTS

Findings showed statistically significant group effects (F = 19.32, p<.001), time effects (F = 27.67, p<.001), and group- and time-interaction effects (F = 26.60, p<.001) on postoperative pain after CS. In the acupressure group, the VAS scores were lower at 1 min, 2 h and 4 h after the intervention compared to before the intervention (p<.001; p<.001; p=.001, respectively). In the placebo group, the VAS score at 1 min after the application decreased, increasing at 2 h and 4 h, but these changes were not significant (p>.05). The first mobilisation distance of the acupressure group was significantly longer than that of the placebo group (p<.001).

CONCLUSION

Acupressure applied to the SP6, P6 and LI4 points was an effective nursing intervention for pain control and mobilisation after CS. Considering the significant impact of pain after CS on maternal and infant health, nurses should include acupressure, which is easy to apply, cost-effective, and efficacious, in postpartum care.

Machine learning approach to predict postoperative pain after spinal morphine administration during caesarean delivery

Background

A major barrier to optimal pain management is the difficulty in predicting and assessing patients at high risk for significant pain across multiple locations within the institution in a timely manner. This is compounded by the fragmented display of clinical information on enterprise clinical platform, which further hinders delay the reviews and hence the increased risk of untreated pain. We evaluated and compared the predictive performance of six modelling techniques in predicting significant pain, defined as the maximum pain score of 3 or more on movement at the 13th to 24th hour after spinal morphine administration during caesarean delivery.

Methods

We retrieved medical records from women who underwent caesarean delivery and received postoperative spinal morphine in a single specialist maternity hospital in Singapore between Aug 2019 and Aug 2022. We extracted 120 clinical variables from the medical records of eligible patients and further selected 23 to improve algorithm accuracies. The dataset was split randomly, with 80 % of patients (n = 5248) used for training the models, and 20 % (n = 1313) reserved for validation.

Results

The study cohort comprised 6561 patients with an incidence of significant postoperative pain of 7.9 %. Ridge regression demonstrated the best performance with both the full (AUC: 0.649) and selected (AUC: 0.719) feature sets. By reducing the number of features, Ridge regression, LASSO, Elastic net, and XGBoost showed similar in AUC (0.704-0.719), sensitivity (0.644-0.695), specificity (0.644-0.705), positive predictive value (0.155-0.179), and negative predictive value (0.949-0.955) in predicting significant postoperative pain. These were attributed to the top three variables, mainly the last recorded postoperative pain score (on movement) before the prediction point, mean and standard deviation of the hourly maximum postoperative pain score (at rest) at 0th to 12th hour.

Conclusions

Future research will aim to refine these models and explore their implementation in clinical settings to enhance real-time pain management and risk stratification for women after caesarean delivery.

Recovery quality of transversus abdominis plane block with liposomal bupivacaine after cesarean delivery: A randomized trial

STUDY OBJECTIVE

This study aimed to investigate the effect of liposomal bupivacaine in transversus abdominis plane block (TAP) on recovery quality after cesarean delivery.

DESIGN

A randomized trial.

SETTING

An operating room, a post-anesthesia care unit, and a hospital ward.

PATIENTS

A total of 147 women scheduled for cesarean delivery under spinal anesthesia were enrolled and randomized to receive a TAP block with plain bupivacaine (bupivacaine group), liposomal bupivacaine (liposomal group), or a mixture of plain bupivacaine and liposomal bupivacaine (mixture group).

INTERVENTIONS

The bupivacaine group received bilateral TAP blocks with plain bupivacaine 50 mg alone. The liposomal group received bilateral TAP blocks with liposomal bupivacaine 266 mg alone. The mixture group received bilateral TAP blocks with plain bupivacaine 50 mg followed by liposomal bupivacaine 266 mg.

MEASUREMENTS

The primary outcome was the Quality of Recovery-15 (QoR - 15) score assessed 24 h postoperatively. Secondary outcomes encompassed the QoR - 15 score at 48 h post-surgery, the VAS pain score at rest and with movement at 24, 48, and 72 h postoperatively, opioid consumption within the 0-24 h and 24-48 h periods following surgery, as well as patient's satisfaction with analgesic.

MAIN RESULTS

The QoR - 15 score at 24 h postoperatively was significantly higher in both the liposomal group and the mixture group compared to the bupivacaine group. Specifically, the QoR - 15 score for the liposomal group versus the bupivacaine group (median [IQR]: 120 [107, 128] vs. 109 [104, 120]; median difference, 7; 95 % CI, 2 to 13; P = 0.011) and for the mixture group versus the bupivacaine group (median [IQR]: 122 [112, 128] vs. 109 [104, 120]; median difference, 9; 95 % CI, 4 to 14; P = 0.001). The QoR - 15 score in both the liposomal group and the mixture group were also higher than those in the bupivacaine group at 48 h postoperatively, though the difference was not clinically meaningful. Additionally, both the liposomal and mixture groups exhibited lower pain score at 24 h and 48 h postoperatively compared to the bupivacaine group, but no significant clinical differences were achieved in either pain scores or opioid consumption. Patients in both the liposomal and mixture groups reported higher satisfaction score with analgesia than those in the bupivacaine group.

CONCLUSIONS

TAP block using either liposomal bupivacaine or a mixture of plain bupivacaine and liposomal bupivacaine provided superior quality of recovery at 24 h after cesarean delivery compared to using plain bupivacaine alone.

The effect of acupressure on postpartum pain and comfort after cesarean delivery: a randomized controlled trial

This randomized controlled study aims to investigate the effect of acupressure on pain and postpartum comfort following a cesarean section. The study was conducted with 60 women who underwent cesarean delivery. The participants were randomly assigned to either the intervention or control group. In the intervention group, acupressure was applied to the LI4, SP6, and P6 points for 15 minutes at the 2nd and 4th hours after the cesarean section. In the control group, acupressure was not applied and only routine nursing care was given. Data was collected using a personal information form, Visual Analog Scale (VAS), and Postpartum Comfort Questionnaire (PCQ). Acupressure application was applied to the intervention group at the 2nd and 4th hour after cesarean section. All data collection forms were filled out by women in the intervention group before starting acupressure application at 2 hours after cesarean section. VAS was filled out again after acupressure application at 2 hours. VAS was filled out before and after acupressure application at 4 hours after cesarean section. PSQ was filled out in both groups before discharge. In the study, the intervention group's 2nd (3.03 ± 1.24, p < .001) and 4th (4.06 ± 1.22, p < .001) hour posttest VAS scores were lower and PCQ posttest scores (140.6 ± 9.01, p < .001) were higher than the control group. The results indicate that acupressure intervention applied to points LI4, SP6, and P6 was a useful nonpharmacological treatment for postpartum pain and comfort for the study group.

Pharmacologic Analgesia for Cesarean Section: An Update in 2024

PURPOSE OF THE REVIEW

With the increasing prevalence of cesarean section globally, the importance of perioperative analgesia for cesarean section is becoming increasingly evident. This article provides an overview and update on the current status of cesarean section worldwide and associated analgesic regimens.

RECENT FINDINGS

Some recent studies unveiled potential association of neuraxial analgesia might be associated with children's autism, pharmacologic analgesia in obstetric will potentially gain some more attention. Various commonly used techniques and medications for analgesia in cesarean section are highlighted. While neuraxial administration of opioid remains the most classic method, the use of multimodal analgesia, particularly integration of nonsteroidal anti-inflammatory drugs, acetaminophen, peripheral nerve blocks has provided additional and better options for patients who are not suitable for intrathecal and neuraxial techniques and those experiencing severe pain postoperatively. Optimal pain management is crucial for achieving better clinical outcomes and optimal recovery, and with the continuous development of medications, more and better pharmacologic regimen will be available in the future.

Preoperative pain sensitivity and its correlation with postoperative acute and chronic pain: a systematic review and meta-analysis

BACKGROUND

Preoperative pain sensitivity (PPS) can be associated with postsurgical pain. However, estimates of this association are scarce. Confirming this correlation is essential to identifying patients at high risk for severe postoperative pain and for developing analgesic strategy. This systematic review and meta-analysis summarises PPS and assessed its correlation with postoperative pain.

METHODS

PubMed, Scopus, Cochrane Library, and PsycINFO were searched up to October 1, 2023, for studies reporting the association between PPS and postsurgical pain. Two authors abstracted estimates of the effect of each method independently. A random-effects model was used to combine data. Subgroup analyses were performed to investigate the effect of pain types and surgical procedures on outcomes.

RESULTS

A total of 70 prospective observational studies were included. A meta-analysis of 50 studies was performed. Postoperative pain was negatively associated with pressure pain threshold (PPT; r=-0.15, 95% confidence interval [CI] -0.23 to -0.07]) and electrical pain threshold (EPT; r=-0.28, 95% CI -0.42 to -0.14), but positively correlated with temporal summation of pain (TSP; r=0.21, 95% CI 0.12-0.30) and Pain Sensitivity Questionnaire (PSQ; r=0.25, 95% CI 0.13-0.37). Subgroup analysis showed that only TSP was associated with acute and chronic postoperative pain, whereas PPT, EPT, and PSQ were only associated with acute pain. A multilevel (three-level) meta-analysis showed that PSQ was not associated with postoperative pain.

CONCLUSIONS

Lower PPT and EPT, and higher TSP are associated with acute postoperative pain while only TSP is associated with chronic postoperative pain. Patients with abnormal preoperative pain sensitivity should be identified by clinicians to adopt early interventions for effective analgesia.

SYSTEMATIC REVIEW PROTOCOL

PROSPERO (CRD42023465727).

Exploring the Analgesic Efficacy and mechanisms of low-dose esketamine in pregnant women undergoing cesarean section: A randomized controlled trial

Background

Postoperative pain is a prevalent concern following a cesarean section. This study aimed to investigate the effect and mechanism of low-dose (0.1 mg/kg) esketamine on postoperative pain management in pregnant women undergoing cesarean sections, specifically in cases where both patient-controlled intravenous analgesia (PCIA) and patient-controlled epidural analgesia (PCEA) were employed.

Methods

Pregnant women intending to undergo elective cesarean section were divided into four subgroups based on the intravenous administration of esketamine and the specific analgesia methods employed: E1 (0.1 mg/kg esketamine + PCEA), E2 (0.1 mg/kg esketamine + PCIA), C1 (saline + PCEA), and C2 (saline + PCIA). The primary outcome was the maximum pain score within 24 h postoperatively. Secondary outcomes included the pressure pain threshold and tolerance at 30 min and 24 h postoperatively, along with the inflammation and adverse event index scores.

Results

A total of 118 pregnant women were assigned to the four groups: E1 (n = 29), E2 (n = 29), C1 (n = 30), and C2 (n = 30). Compared with those in the control groups (C1 + C2), the maximum postoperative pain scores within 24 h in the esketamine groups (E1 + E2) were significantly lower (4 [2-5] vs. 4 [4-6], P = 0.002), and the E1 group exhibited superior analgesic effects compared with other groups. No significant differences were observed in postoperative hyperalgesia or inflammation across the four groups. Notably, esketamine combined with PCIA increased the incidence of postoperative nausea and vomiting (7 [25 %] vs. 0 [0 %]; P = 0.005).

Conclusion

The administration of low-dose (0.1 mg/kg) esketamine effectively alleviates pain following cesarean section, and the analgesic effect is notably enhanced in combination with PCEA. Importantly, these effects do not appear to be mediated through anti-inflammatory mechanisms or the inhibition of hyperalgesia.

Clinical trial registration number

NCT05414006.

Lateral quadratus lumborum block vs acupuncture for postcesarean analgesia: a randomized clinical trial

BACKGROUND

Improved pain control after cesarean section remains a challenging objective. Although both the lateral quadratus lumborum block (L-QLB) and acupuncture have been reported to provide superior postoperative analgesia after cesarean section when compared to placebo, the efficacy of these techniques has never been compared head-to-head.

OBJECTIVE

This study was conducted to investigate the comparative analgesic efficacy of L-QLB and acupuncture following elective cesarean section.

STUDY DESIGN

In this prospective, randomized, controlled clinical trial, a total of 190 patients with singleton-term pregnancies scheduled for cesarean section under spinal-epidural anesthesia were enrolled. Patients were randomized 1:1 to acupuncture group or L-QLB group. L-QLB group received bilateral L-QLB with 0.33% ropivacaine and sham acupuncture, acupuncture group received transcutaneous electrical acupoint stimulation and press needle therapy, and sham L-QLB. All patients received the standard postoperative pain treatment. The primary outcome was pain scores on movement at 24 hours. Secondary endpoints included pain scores in the first 48 hours postoperatively, patient-controlled intravenous analgesia (PCIA) demands, analgesia-related adverse effects, postoperative complications, QoR-15, the time to mobilization, and gastrointestinal function.

RESULTS

Median (interquartile range [range]) pain scores at 24 hours on movement were similar in patients receiving acupuncture or L-QLB (3 [2-4] vs 3 [2-4], respectively; P=.40). PCIA consumption and pain scores within 48 hours postoperatively also showed no difference between the two groups. The acupuncture improved QoR-15 scores at 24 and 48 hours postoperatively (P<.001), as well as shortened the time to first flatus (P=.03) and first drinking (P<.001) compared to L-QLB. In addition, the median time to mobilization in the L-QLB group was markedly prolonged compare with acupuncture group (17.0 [15.0-19.0] hours vs 15.3 [13.3-17.0] hours, estimated median difference, 1.5; 95% CI, 1-2; P<.001).

CONCLUSION

As a component of multimodal analgesia regimen after cesarean section, acupuncture did not lower postoperative pain scores or reduce analgesic medication consumption compared to L-QLB.

Effect of psychological nursing intervention combined with acupressure on postoperative recovery of women after cesarean section

BACKGROUND

Psychological intervention nursing (PIN) has been considered to have a curative effect on cesarean section (CS) postoperative recovery. However, the therapeutic mechanisms remain obscure.

AIM

To explore the effects of PIN combined with acupressure massage on CS postoperative recovery.

METHODS

A retrospective study was conducted on 150 pregnant women admitted to an obstetrics department between January 2020 and January 2023. The control group (CG) received acupressure therapy (n = 73), and the intervention group (IG) received acupressure therapy and PIN therapy (n = 77). Postoperative recovery time was assessed by anal-exhausting, defecation, bed activity, breastfeeding, and hospital stay times. Adverse effects, including infection, bleeding, limb numbness, intrauterine hematoma, urinary retention, and venous thromboembolism, were recorded. the pain visual analogue scale (VAS) was used to evaluate the degree of pain. Anxiety and depression status were qualitatively assessed using the self-rating anxiety scale (SAS), self-rating depression scale (SDS), and Edinburgh postpartum depression scale (EPDS). The Pittsburgh sleep quality index (PSQI) was used to compare sleep quality between the groups.

RESULTS

The baseline data and SAS, SDS, EPDS, and PSQI scores did not significantly differ before CS (P > 0.05) and neither did complication rates between the two groups after CS (P > 0.05). However, anal-exhausting, defecation, waking up, breastfeeding, and hospitalization times were significantly shorter for participants in the IG than those for participants in the CG (P < 0.05). The VAS, SAS, SDS, EPDS, and PSQI scores of the IG were significantly lower than those of the CG (P < 0.05).

CONCLUSION

PIN, combined with acupressure massage, effectively promotes maternal recovery, reduces post-CS pain, and improves postoperative negative emotions and sleeping quality.

Enhanced recovery after caesarean section: Implementation of an ERAC protocol in a tertiary obstetric hospital

OBJECTIVE

Assess safety and efficacy of an Enhanced Recovery After Caesarean protocol.

BACKGROUND

Caesarean sections are among the most commonly performed surgeries worldwide, but have been associated with postoperative chronic pain and opioid abuse.

METHODS

ASA 2 females, over 18 years, non-primiparous, repeat elective LSCS. Primary outcomes were length of stay and opioid consumption. Secondary outcomes were pain scores, functional assessment scores, pruritus, nausea and vomiting.

RESULTS

A total of 579 women divided into standard care (389 patients) and enhanced recovery after caesarean groups (190 patients). Enhanced recovery after caesarean associated with reduced length of stay, 50.8 hours (interquartile range 48.6, 53.6) versus 72.2 hours (interquartile range 53.2, 75.7) in standard care. Enhanced recovery after caesarean associated with reduced opioid consumption, median 10 (interquartile range 0, 27.5mg) versus 120mg (interquartile range 90, 145mg) in standard care at 24 hours and 30 (interquartile range 7.7, 67.5mg) versus 177.5mg (interquartile range 132.5, 222.5 mg) at 48 hours. Pain scores reduced from moderate to mild in the enhanced recovery after caesarean. functional assessment scores trend towards improved function in the enhanced recovery after caesarean group (Functional assessment scores B 8.9% in enhanced recovery after caesarean versus 147% in standard care). Increased pruritus in the enhanced recovery after caesarean with 41.6% compared with 9.3% in standard care. Nausea and vomiting increased in enhanced recovery after caesarean group 48.9% versus 11.6% in standard care.

CONCLUSION

Enhanced recovery after caesarean associated with a reduction in length of stay, opioid consumption and improved pain scores with an increase in side effects.

Transversus Abdominis Plane Block versus Epidural Anesthesia for Pain Management Post-Caesarean Delivery: A Pilot Study

Background

Effective post-operative analgesia profoundly influences patient recovery and outcomes after caesarean delivery. The Transversus Abdominis Plane (TAP) block represents a potential alternative, potentially offering greater effectiveness than epidural analgesia while causing fewer adverse effects.

Objective

To assess if the abdominal transverse block provides superior postoperative pain relief in patients undergoing caesarean delivery compared to epidural analgesia.

Methods

Participants were divided into parallel groups: an experimental group receiving TAP block (n=25) and a control group receiving epidural analgesia (n=24). All patients received a 10 mg dose of hyoscine at the end of the surgery. Experimental Group received a total of 20 mL of 0.2% ropivacaine. In Epidural group received 0.2% ropivacaine at 4 mL/h for 24 hours. All participants were administered combined with neuroaxial block anesthesia. The patients selected for epidural analgesia received the mentioned dose, while the other group block had the epidural catheter removed after the cesarean section. The primary outcome was post-caesarean pain, evaluated using the Visual Analog Scale (VAS) at four intervals (0, 6, 12, and 24 hours). Also, surgical bleeding and residual motor were evaluated. VAS pain scores between the groups were compared using the Friedman test and Generalized Linear Model (GLM) for non-normally distributed data. The effect size was estimated with Eta Square ([Formula: see text]), considering values ≥0.38 as indicative of large effects. A two-tailed p-value < 0.05 was deemed statistically significant.

Results

Statistically significant differences in pain scores were noted at 0 and 6 hours post-surgery (p<0.01). The TAP block group reported lower pain scores at 0 hours (mean=0.04) and 6 hours (mean=1.16) compared to the epidural group, reflecting a substantial effect size.

Conclusion

The TAP block proves advantageous in mitigating postoperative pain for women post-caesarean delivery, particularly in the initial 6 postpartum hours. This relief promotes early mother-infant bonding and facilitates breastfeeding.

Brief Assessment of Patient Phenotype to Explain Variability in Postsurgical Pain and Opioid Consumption after Cesarean Delivery: Performance of a Novel Brief Questionnaire Compared to Long Questionnaires

BACKGROUND

Understanding factors that explain why some women experience greater postoperative pain and consume more opioids after cesarean delivery is crucial to building an evidence base for personalized prevention. Comprehensive psychosocial assessment with validated questionnaires in the preoperative period can be time-consuming. A three-item questionnaire has shown promise as a simpler tool to be integrated into clinical practice, but its brevity may limit the ability to explain heterogeneity in psychosocial pain modulators among individuals. This study compared the explanatory ability of three models: (1) the 3-item questionnaire, (2) a 58-item questionnaire (long) including validated questionnaires (e.g., Brief Pain Inventory, Patient Reported Outcome Measurement Information System [PROMIS]) plus the 3-item questionnaire, and (3) a novel 19-item questionnaire (brief) assessing several psychosocial factors plus the 3-item questionnaire. Additionally, this study explored the utility of adding a pragmatic quantitative sensory test to models.

METHODS

In this prospective, observational study, 545 women undergoing cesarean delivery completed questionnaires presurgery. Pain during local anesthetic skin wheal before spinal placement served as a pragmatic quantitative sensory test. Postoperatively, pain and opioid consumption were assessed. Linear regression analysis assessed model fit and the association of model items with pain and opioid consumption during the 48 h after surgery.

RESULTS

A modest amount of variability was explained by each of the three models for postoperative pain and opioid consumption. Both the brief and long questionnaire models performed better than the three-item questionnaire but were themselves statistically indistinguishable. Items that were independently associated with pain and opioid consumption included anticipated postsurgical pain medication requirement, surgical anxiety, poor sleep, pre-existing pain, and catastrophic thinking about pain. The quantitative sensory test was itself independently associated with pain across models but only modestly improved models for postoperative pain.

CONCLUSIONS

The brief questionnaire may be more clinically feasible than longer validated questionnaires, while still performing better and integrating a more comprehensive psychosocial assessment than the three-item questionnaire.

EDITOR’S PERSPECTIVE

Continuous wound infusion catheter as part of a multimodal analgesia regimen for post-Caesarean delivery pain: a quality improvement impact study

Background

The role of continuous wound infusion catheters as part of a multimodal analgesia strategy after Caesarean delivery is unclear. We introduced continuous wound infusion catheters to our multimodal analgesia regimen to evaluate the impact on analgesic outcomes after Caesarean delivery.

Methods

After institutional review board (IRB) approval, a 4-month practice change was instituted as a quality improvement initiative. In addition to multimodal analgesia, continuous wound infusion catheters for up to 3 days were offered on alternate weeks for all women undergoing Caesarean deliveries. The primary outcome was postoperative in-hospital opioid consumption. Secondary outcomes were static and dynamic pain scores at 24 and 72 h, time until first analgesic request, opioid-related side-effects, length of stay, satisfaction (0-100%), and continuous wound infusion catheter-related complications.

Results

All women scheduled for Caesarean delivery (n=139) in the 4-month period were included in the analysis, with 70 women receiving continuous wound infusion catheters, and 69 in the control group. Opioid consumption (continuous wound infusion catheter group 11.3 [7.5-61.9] mg morphine equivalents vs control group 30.0 [11.3-48.8] mg morphine equivalents), pain scores (except 24 h resting pain scores which were higher in the control group 2 [1-3] vs 1.5 [0-3] in the continous wound infusion catheters group; P=0.05), side-effects, length of stay, and complications were similar between groups. Satisfaction scores at 24 h were higher with continuous wound infusion catheters (100% [91-100%] vs 90% [86-100%]; P=0.003) with no differences at 72 h. One patient demonstrated symptoms of systemic local anaesthetic toxicity which resolved without significant harm.

Conclusions

The addition of continuous wound infusion catheters to a multimodal analgesia regimen for post-Caesarean delivery pain management demonstrated minimal clinically significant analgesic benefits. Future studies are needed to explore the use of continuous wound infusion catheters in populations that may benefit most from this intervention.

Effect of Personality and Pain Catastrophizing on Postoperative Analgesia Following Cesarean Section: A Prospective Cohort Study

Purpose

This study aimed to investigate the effects of different psychological personalities and pain catastrophizing levels on postoperative analgesia in patients undergoing cesarean section.

Patients and Methods

Puerperas who underwent cesarean section at our hospital between January and August 2023 were recruited into the study and assessed using the Eysenck Personality Questionnaire-Revised Short Scale (EPQRSC) and Pain Catastrophizing Scale (PCS). Data on the numerical pain intensity at rest and during activity 24 h after surgery, number and dosage of analgesia pumps, and satisfaction with analgesia were recorded. According to the numerical pain score during activity 24 h post-operation, the patients were divided into the analgesia incomplete group (≥4) and control group (<4). Univariate analysis, Spearman correlation analysis, and binary logistic regression analysis were used to evaluate the influence of personality characteristics and PCS on postoperative analgesia.

Results

A total of 778 women were included in the study. The incidence of inadequate analgesia was 89.8%. The satisfaction rate of analgesia was 66.8%. Univariate analysis showed that extraversion; neuroticism; PCS; numbers of previous cesarean delivery; ASA; analgesic satisfaction; and 24-h analgesia pump compressions and dosage were associated with postoperative analgesia after cesarean section (P<0.05). Using binary logistic regression analysis, the first cesarean section (odds ratio [OR]=0.056, 95% confidence interval [CI]=1.913-19.174), the number of 24-h analgesic pump compressions (OR=8.464, 95% CI=0.356-0.604), extraversion (OR=0.667, 95% CI=0.513-0.866), neuroticism (OR=1.427, 95% CI=1.104-1.844), and PCS (OR=7.718, 95% CI=0.657-0.783) were factors affecting postoperative analgesia.

Conclusion

The incidence of inadequate analgesia after a cesarean section was high (89.8% on the first day after surgery). Formulating accurate analgesia programs for women undergoing cesarean section with extraversion, neuroticism personality characteristics, and pain catastrophizing behaviors is necessary for improving their postoperative analgesia effects and satisfaction and promoting postpartum comfort.

Ultrasound-Guided Bilateral Erector Spinae Plane Block vs. Ultrasound-Guided Bilateral Posterior Quadratus Lumborum Block for Postoperative Analgesia after Caesarean Section: An Observational Closed Mixed Cohort Study

ESP block (ESPB) and posterior Quadratus Lumborum Block (pQLB) have been proposed as opioid-sparing techniques for the management of pain after abdominal surgery. Between December 2021 and October 2022, we conducted a retrospective comparative study at the delivery suite of Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy, to compare the efficacy of ESPB and pQLB in preventing postoperative pain after an elective caesarean section (CS). The primary outcome was total morphine consumption in the first 24 h. Secondary outcomes were time to first opioid request; Numerical Pain Rating Scale (NPRS) at 0, 2, 6, 12 and 24 h; vital signs; adverse events. Fifty-two women were included. The total cumulative dose of morphine was not significantly different between the two groups of patients (p = 0.897). Time to first dose of morphine, NPRS values and haemodynamic parameters were not statistically different between the two groups. NPRS values significantly increased (p < 0.001) at the different time intervals considered. The need for rescue doses of morphine was lower in the ESPB group compared to the pQLB group (hazard ratio of 0.51, 95% CI (0.27 to 0.95), p = 0.030). No adverse event was reported. ESPB seems to be as effective as pQLB in providing analgesia after CS.

Effect of Using Silver Nylon Dressings on Postoperative Pain after Cesarean Delivery

OBJECTIVE

Silver dressings have been associated with a decrease in postoperative pain in selected populations, but it is unknown if the benefit can be observed after cesarean deliveries. We sought to evaluate the impact of silver nylon dressings in reducing postoperative pain after cesarean delivery.

STUDY DESIGN

A secondary analysis of data from a blinded randomized clinical trial of women undergoing cesarean delivery scheduled and unscheduled at a single site was conducted. Women were recruited for participation from a single site and randomized to a silver nylon dressing or an identical-appearing gauze wound dressing. Wounds were evaluated in the outpatient clinic at 1 and 6 weeks after delivery and patient responded to the modified patient scar assessment scale. The primary outcome of this analysis was inpatient opioid and nonopioid analgesic dispensed. The secondary outcome was patient-reported pain at the 1- and 6-week postpartum visits. Data were analyzed using chi-square test, Student's t-test, Fisher's exact test, Wilcoxon-Mann-Whitney's test, and logistic regression where appropriate. A p-value of < 0.05 was considered significant.

RESULTS

Among the 649 participants, women allocated to the silver nylon dressing group, when compared with the gauze group, were similar in the amount of dispensed opioid and nonopioid analgesic medications (morphine equivalent milligrams of opioids dispensed [82.5 vs. 90 mg, p = 0.74], intravenous nonsteroidal anti-inflammatory drugs (NSAIDs) [120 vs. 120 mg, p = 0.55], and oral NSAIDs [4,800 vs. 5,600 mg in the gauze group, p = 0.65]). After adjusting for confounding variables, postoperative wound infection (adjusted odds ratio [aOR]: 11.70; 95% confidence interval [CI]: 4.51-30.31) at 1-week postoperative and again at 6-week postoperative (aOR: 5.59; 95% CI: 1.03-30.31) but not gauze dressing was associated with patient-reported postoperative pain.

CONCLUSION

Among women undergoing cesarean delivery, silver nylon dressing was not associated with a reduction in postoperative pain.

KEY POINTS

· Silver dressings showed no decrease in pain medications.. · Wound infection is associated with pain postoperatively.. · Silver dressings did not reduce postoperative pain..

Inflammatory changes in the plasma and cerebrospinal fluid of patients with persistent pain and postpartum depression after elective Cesarean delivery: an exploratory prospective cohort study

PURPOSE

Severe acute pain after Cesarean delivery increases the risk of developing persistent pain (~20% incidence) and postpartum depression (PPD) (~15% incidence). Both conditions contribute to maternal morbidity and mortality, yet early risk stratification remains challenging. Neuroinflammation has emerged as a key mechanism of persistent pain and depression in nonobstetric populations. Nevertheless, most studies focus on plasma cytokines, and the relationship between plasma and cerebrospinal fluid (CSF) cytokine levels is unclear. Our primary aim was to compare inflammatory marker levels between patients who developed the composite outcome of persistent pain and/or PPD vs those who did not.

METHODS

We recruited term patients with singleton pregnancies undergoing elective Cesarean delivery under neuraxial anesthesia into an exploratory prospective cohort study. We collected baseline demographic, obstetric, and Edinburgh Postnatal Depression Scale information, and performed quantitative sensory tests. Plasma was collected preoperatively and 48 hr postoperatively. In the operating room, 10 mL of CSF was collected, followed by a standardized anesthetic. Intra- and postoperative management were according to standard practice. We obtained Edinburgh Postnatal Depression Scale and pain scores at six weeks and three months after delivery. The primary outcome was persistent pain and/or PPD at three months. We analyzed the difference in inflammatory marker levels between the groups (primary aim) using two-sided Mann-Whitney tests.

RESULTS

Eighty participants were enrolled, and 63 patients completed the study; 23 (37%) experienced the primary outcome at three months. Preoperative plasma transforming growth factor beta 1 (TGF-β1) concentration was higher in patients who developed the primary outcome compared with those who did not (median [interquartile range (IQR)], 2,879 [2,241-5,494] vs 2,292 [1,676-2,960] pg·mL-1; P = 0.04), while CSF IL-1β concentration was higher in patients who developed the primary outcome than in those who did not (median [IQR], 0.36 [0.29-0.39] vs 0.30 [0.25-0.35] pg·mL-1; P = 0.03).

CONCLUSIONS

We observed differential levels of plasma and CSF inflammatory biomarkers in patients who developed persistent pain and PPD compared with those who did not. We showed the feasibility of collecting plasma and CSF samples at Cesarean delivery, which may prove useful for future risk-stratification.

STUDY REGISTRATION

ClinicalTrials.gov (NCT04271072); registered 17 February 2020.

The effectiveness of erector spina plane, quadratus lumborum blocks, and intrathecal morphine for analgesia after cesarean: a randomized study

OBJECTIVE

This prospective randomized study was conducted at Ataturk University Medical Faculty Hospital, Department of Anesthesia and Reanimation, from June 2022 to May 2023. The aim of this study was to compare the effectiveness of ultrasound-guided erector spinae plane block, quadratus lumborum block, and intrathecal morphine to decrease postoperative pain after cesarean section.

METHODS

Sixty-term pregnant women who were scheduled for elective cesarean sections with spinal anesthesia were included. Patients were randomly divided into three groups (n=20 for each group): Group 1: Patients were administered intrathecal morphine during spinal anesthesia; Group 2: Patients performed bilateral erector spinae plane block postoperatively; and Group 3: Patients performed bilateral quadratus lumborum block postoperatively. In the postpartum care unit, patients received intravenous Patient-Controlled Analgesia. The Patient-Controlled Analgesia devices were set to administer an intravenous bolus of 25 μg fentanyl, with a lockout interval of 10 min. Opioid consumption and maximum pain score in the 24 postoperative hours were recorded.

RESULTS

Patients in Group 1 had a longer time to first analgesic requirement compared to Group 2 (p=0.017). Opioid consumption and resting and moving visual analog score scores in the first 24 h postoperatively were similar between groups.

CONCLUSION

All three methods, including intrathecal morphine, erector spinae plane block, and quadratus lumborum block, are efficacious and comparable in providing postoperative analgesia after cesarean under spinal anesthesia.

Peripheral Nerve Blocks for Cesarean Delivery Analgesia: A Narrative Review

Effective postoperative analgesia using multimodal approach improves maternal and neonatal outcomes after cesarean delivery. The use of neuraxial approach (local anesthetic and opioids) and intravenous adjunctive drugs, such as nonsteroidal anti-inflammatory drugs and acetaminophen, currently represents the standard regimen for post-cesarean delivery analgesia. Peripheral nerve blocks may be considered in patients who are unable to receive neuraxial techniques; these blocks may also be used as a rescue technique in selected patients. This review discusses the relevant anatomy, current evidence, and advantages and disadvantages of the various peripheral nerve block techniques. Further research is warranted to compare the analgesic efficacy of these techniques, especially newer blocks (e.g., quadratus lumborum blocks and erector spinae plane blocks). Moreover, future studies should determine the safety profile of these blocks (e.g., fascial plane blocks) in the obstetric population because of its increased susceptibility to local anesthetic toxicity.

Bilateral transversus abdominis plane (TAP) block reduces pain and the need for additional analgesics after elective cesarean section under opioid-free spinal anesthesia: findings from a randomized clinical trial

Background

Cesarean section (CS) is the most frequently performed obstetric procedure globally, and postoperative pain remains a prominent concern. This study aimed to evaluate the effectiveness of the bilateral transversus abdominis plane (TAP) block in addressing this issue.

Methods

We performed a randomized trial in women with term pregnancies who underwent elective CS with spinal anesthesia. The women were randomized (1:1) to receive bilateral TAP or postoperative systemic analgesics (control group). The primary outcome was the effect on postoperative pain assessed using the numeric rating score (NRS) at 2, 6, 12, and 24 h in the postoperative period.

Results

At 2 and 6 h after the surgical procedure, there was a significant reduction in both resting (rNRS p  = 0.004) and movement-related pain (dNRS p  = 0.0001, p  = 0.001 respectively). However, at 12 h, a reduction of dNRS was demonstrated (p  = 0.0001), while no benefit was observed at rest. The percentage of women with NRS ≤ 4 was higher after the block at 2 h for both resting and movement-related pain (rNRS p  = 0.010; dNRS p  = 0.0001); at 6 and 12 h, it was only significant for dNRS (p  = 0.002). Rescue doses of analgesics were significantly higher in the control group at 2, 6, and 12 h (p  = 0.01, p  = 0.0383, p  = 0.0003 respectively). No complications with the procedure were recorded.

Conclusion

Bilateral TAP block has the potential to alleviate postoperative pain and reduce the need for additional analgesics after CS.

Trial registration

This study is registered with ClinicalTrials.gov, number (NCT02801968), registered 28 May 2016, https://clinicaltrials.gov/ct2/show/NCT02801968?term=NCT02801968&draw=2&rank=1

Maternal psychosocial factors associated with postpartum pain

BACKGROUND

The experience of pain is shaped by a host of psychological, cultural, and social factors. Although pain is the most common postpartum complaint, data on its relationship with psychosocial factors and postpartum pain are limited.

OBJECTIVE

This study aimed to examine the relationship between self-reported postpartum pain scores and patient-level psychosocial factors, including relationship status, pregnancy intendedness, employment, education, and psychiatric diagnosis.

STUDY DESIGN

This was a secondary analysis of data from a prospective observational study of postpartum patients at 1 institution (May 2017 to July 2019) who used an oral opioid at least once during their postpartum hospitalization. Enrolled participants completed a survey, which included questions regarding their social situation (including relationship status), psychiatric diagnoses, and perceptions of their pain control during their postpartum hospitalization. The primary outcome was self-reported overall pain during the postpartum hospitalization (score of 0-100). Multivariable analyses accounted for age, body mass index, nulliparity, and mode of delivery.

RESULTS

In this cohort of 494 postpartum patients, most patients (84.0%) underwent cesarean delivery, and 41.3% of patients were nulliparous. In a pain score of 0 to 100, participants reported a median pain score of 47. On bivariable analyses, there was no significant difference in pain score between patients with and without an unplanned pregnancy or a psychiatric diagnosis. Patients who were unpartnered, those without a college education, and those who were unemployed reported significantly higher pain scores (57.5 vs 44.8 [P<.01], 52.6 vs 44.6 [P<.01], and 53.6 vs 44.6 [P<.01], respectively). In multivariable analyses, patients who were unpartnered and unemployed reported significantly higher adjusted pain scores than patients who were partnered and employed (adjusted beta coefficients: 7.93 [95% confidence interval, 2.29-13.57] vs 6.67 [95% confidence interval, 2.28-11.05]).

CONCLUSION

Psychosocial factors, such as relationship and employment statuses, which are indicators of social support, are associated with the experience of pain postpartum. These findings suggest that addressing social support, such as via enhanced support from the health care team, warrants exploration as a nonpharmacologic means of improving the postpartum pain experience.

Women's experiences of breastfeeding after a cesarean section: A meta-synthesis

AIM

The World Health Organization and United Nations Children's Fund recommend the early initiation of breastfeeding within the first hour postpartum for successful exclusive breastfeeding. However, cesarean section is a risk factor for unsuccessful early initiation of breastfeeding. Herein, we aim to explore women's experiences of breastfeeding after a cesarean section.

METHODS

We used the Joanna Briggs Institute framework in this meta-synthesis. We searched articles published from 1990 to 2022 on PubMed, CINAHL, Cochrane library, PsycInfo, and EMBASE to identify qualitative studies on women's experiences of breastfeeding after a cesarean section. We used the Critical Appraisal Skills Programme checklist for qualitative studies to assess the quality of the included studies.

RESULTS

Seven qualitative studies from five countries met the inclusion criteria, representing the views of 194 women who underwent cesarean sections. Six new categories were integrated into the women's experiences of breastfeeding after a cesarean section as follows: (i) Perceived values of breastfeeding, (ii) Emotional vulnerability in breastfeeding, (iii) Physical difficulties in breastfeeding, (iv) Inconvenient conditions in breastfeeding, (v) Inadequate resources for breastfeeding, and (vi) Support systems to enable breastfeeding.

CONCLUSIONS

We provide evidence showing that knowledge of the specific breastfeeding mechanism and provision of the most appropriate postsurgical care by healthcare providers just after a cesarean section can reduce the barriers to post-cesarean breastfeeding. Moreover, effective hospital policies and family support can result in the initiation of positive breastfeeding outcomes. Future studies that consider the cultural aspects of breastfeeding practice may generate additional insights into providing optimal postpartum care.

Clinical evaluation of preoperative three -item questionnaire and pain experienced on infiltration of local anesthetics to predict severity of acute pain after caesarean section

Background and Aims

Several studies have attempted to identify patients at risk of developing severe pain after caesarean section (CS) by utilizing preoperative experimental pain application and clinical tests. The three-item questionnaire and reported pain intensity on infiltration of local anesthetic (LA) on the back of patient just before administration of spinal anesthesia, are two simple tests previously shown to be promising. We aimed to study utility of these two tools in Indian patients undergoing CS and find their correlation with postoperative pain and analgesic consumption.

Material and Methods

A total of 150 parturients undergoing elective CS were enrolled. Preoperatively patients were asked to rate their level of anxiety, anticipated postoperative pain and analgesic need after surgery (three-item questionnaire). The pain intensity reported by patient upon LA injection for spinal anesthesia were recorded. In the postoperative period, pain intensity at rest, evoked pain and need for rescue analgesics were recorded. The correlation between three item questionnaire and pain on LA infiltration to postoperative pain were evaluated. To see relationship between the predictor variables to outcome, a multiple regression analysis was performed.

Results

The predictors variables and postoperative pain were found to have mild correlation (r = 0.124 to 0.239). The predictor variables were significantly correlated with postoperative pain at rest but their association was not significant to evoked pain intensity. Multiple regression analysis showed that change in the predictors explains only 7-8% variance in postoperative pain outcomes.

Conclusion

The three -item questionnaire and pain intensity reported upon LA infiltration for spinal anesthesia have mild correlation to postoperative pain in Indian parturients undergoing CS. As these variables predicts only 8% variance in pain experienced after CS, further studies are required for accurate prediction and targeted treatment of post CS pain.

Efficacy of intravenous dexamethasone on postoperative pain after caesarean delivery under spinal anaesthesia with an intrathecal long-acting opioid: a systematic review and meta-analysis

PURPOSE

Intravenous dexamethasone is recommended in elective caesarean delivery to decrease postoperative pain. However, the efficacy of spinal anaesthesia with an intrathecal long-acting opioid such as morphine or diamorphine for caesarean delivery has not been systematically investigated.

METHODS

We searched all randomized controlled trials (RCTs) of pregnant women undergoing caesarean delivery under spinal anaesthesia with an intrathecal morphine or diamorphine via MEDLINE, CENTRAL, EMBASE, ICTRP, and ClinicalTrials.gov on May 18, 2022. Primary outcomes were time to first rescue analgesia, consumption of oral morphine equivalents, and incidence of drug-related adverse reactions. We evaluated the risk of bias for each outcome using the Risk of Bias 2. We conducted a meta-analysis using a random effects model. We evaluated the certainty of evidence with the GRADE approach.

RESULTS

Five RCTs (455 patients) were included. The results of intravenous dexamethasone were as follows: time to first rescue analgesia (mean difference [MD] 0.99 h, 95% confidence interval [CI] - 0.86 to 2.84; very low certainty) and consumption of oral morphine equivalents (MD - 6.55 mg, 95% CI - 17.13 to 4.02; moderate certainty). No incidence of drug-related adverse reactions was reported (very low certainty).

CONCLUSION

The evidence was very uncertain about the efficacy of intravenous dexamethasone on time to first rescue analgesia and the incidence of drug-related adverse reactions. Intravenous dexamethasone probably reduces the consumption of oral morphine equivalents. Anaesthesiologists might want to consider intravenous dexamethasone for postoperative pain after caesarean delivery under spinal anaesthesia with an intrathecal long-acting opioid.

Efficacy of electroacupuncture combined with intravenous patient-controlled analgesia after cesarean delivery: a randomized clinical trial

BACKGROUND

Electroacupuncture is a nonpharmacologic intervention for analgesia that is widely recognized as therapy for pain. However, the clinical efficacy of electroacupuncture combined with patient-controlled intravenous analgesia for postoperative analgesia after cesarean delivery remains unclear.

OBJECTIVE

This study aimed to assess the efficacy of electroacupuncture + patient-controlled intravenous analgesia for postoperative analgesia after cesarean delivery, determine the optimal frequency for the best analgesic effect, and explore the underlying mechanism of action.

STUDY DESIGN

This single-center, randomized, single-blinded, sham acupuncture controlled clinical trial was conducted at a tertiary university hospital in China. Female patients who underwent cesarean delivery and received fentanyl as patient-controlled intravenous analgesia for postoperative analgesia were enrolled. Patients were after surgery randomized to receive 2 Hz electroacupuncture treatment (n=53), 20/100 Hz electroacupuncture treatment (n=53), or sham electroacupuncture treatment (n=52) (controls). The 2 electroacupuncture groups received electroacupuncture treatment at 2 or 20/100 Hz at the ST36 and SP6 points, whereas, in the sham electroacupuncture group, sham electroacupuncture was performed at nonmeridian points with nonenergized electroacupuncture instruments. Of note, 4 electroacupuncture treatments were performed in all groups at 6, 12, 24, and 48 hours after surgery. The primary outcome was the number of analgesic pump compressions at 48 hours after surgery. The secondary outcomes included number of analgesic pump compressions at 6, 12, and 24 hours after surgery; pain scores at 6, 12, 24, and 48 hours after surgery; fentanyl consumption at 48 hours after surgery; interleukin 6 and procalcitonin levels at 12 and 48 hours after surgery; and time to first exhaust.

RESULTS

Overall, 174 primigravida women were included in the intention-to-treat analysis. The number of analgesic pump compressions and pain scores at all 4 time points and fentanyl consumption at 48 hours after surgery were significantly lower in the electroacupuncture treatment groups than in the sham electroacupuncture group (P<.001).

CONCLUSION

Electroacupuncture + patient-controlled intravenous analgesia had a significantly better analgesic effect than sham electroacupuncture + patient-controlled intravenous analgesia within 48 hours after surgery. Thus, electroacupuncture can be considered safe and effective and may improve the efficacy of patient-controlled intravenous analgesia for pain management after cesarean delivery. Electroacupuncture can be recommended as a routine complementary therapy for pain control after cesarean delivery.

Does the pain sensitivity questionnaire correlate with tourniquet pain in patients undergoing ankle surgery?

Background

Tourniquet pain is the most prominent problem in ankle surgery, and there is no proper method to predict it. It was reported that pain sensitivity questionnaires could evaluate the pain sensitivity of subjects. Its potential to predict tourniquet pain in ankle surgery is constructive and meaningful.

Methods

One hundred and twenty patients undergoing ankle surgery were included in this study. The pain sensitivity questionnaire (PSQ) and self-rating anxiety scale (SAS) were completed before the operation. The methods included an ultrasound-guided popliteal sciatic, a femoral nerve block, and a proximal thigh tourniquet. The pressure of the tourniquet was set according to the systolic blood pressure (SBP + 100 mmHg). A visual analogue scale (VAS) was used to assess the tourniquet pain. Also, the onset time of tourniquet pain ≥4 VAS units was recorded.

Results

The PSQ-total and PSQ-minor scores were significantly correlated with the onset time when the tourniquet pain ≥4 VAS units (r = -0.763, r = -0.731, P < 0.001). The PSQ-total score <6.5 group gave significantly lower ratings for items 3, 4, 14, and 16 in the PSQ survey compared to the PSQ-total score ≥6.5 group (P < 0.05). Patients with high pain sensitivity have a higher need for analgesic drugs (P < 0.001). PSQ-total score ≥6.5 (OR = 185.8, 95% CI = 39.8-1,437.6, P < 0.001), sex (male, OR = 0.11, 95% CI = 0.018-0.488, P < 0.05), and age (OR = 0.92, 95% CI = 0.842-0.995, P < 0.05) were risk factors for reporting a tourniquet pain ≥4 VAS units within 30 min.

Conclusion

The PSQ score is found to be correlated with intraoperative tourniquet pain. In addition, sex and age also affect the time of having intraoperative tourniquet pain.

Anxiety and Psychological Flexibility in Women After Childbirth in the Rooming-in Unit during the COVID-19 Pandemic

INTRODUCTION

The coronavirus disease 2019 (COVID-19) pandemic has intensified perinatal anxiety disorders. Psychological flexibility (PF), considered a specific mental toughness, has not been examined with regard to its relationship with anxiety in women after childbirth. We aimed to compare levels of anxiety, PF, and pain in women depending on the mode of birth, parity, and the magnitude of risk of developing an anxiety disorder. We also investigated the association of anxiety with PF and pain.

METHODS

A total of 187 women after childbirth completed validated questionnaires for anxiety (State-Trait Anxiety Inventory, Hospital Anxiety and Depression Scale-Anxiety, Numerical Rating Scale for anxiety [NRS-A]), PF, and pain (Numerical Rating Scale for pain). Specific postpartum anxieties were assessed with a numerical scale from 0 to 10. The relationship of anxiety with PF and pain was examined. Women at low and high risk of developing anxiety disorder were compared in terms of PF, anxiety, and pain.

RESULTS

On the second postpartum day, women after cesarean birth demonstrated significantly greater anxiety on NRS-A and pain than those after vaginal birth. Primiparous women experienced significantly greater anxieties and pain compared to multiparous women. The higher the PF patients demonstrated, the less anxiety and pain they had. Patients at high risk of developing an anxiety disorder had a lower level of PF (P < .001) and higher levels of anxiety (P < .001) and pain (P < .01) than patients at low risk of developing an anxiety disorder. No difference in the anxiety of getting COVID-19 was observed between the groups (P > .05).

CONCLUSIONS

PF is an important psychological construct related to the mental and physical condition of women after childbirth. Increasing PF in women after childbirth may be considered as an important goal of preventive and intervention measures.

Comparison of Post-Cesarean Pain Perception of General Versus Regional Anesthesia, a Single-Center Study

Background and Objectives: Pain during and after the procedure remains the leading concern among women undergoing cesarean section. Numerous studies have concluded that the type of anesthesia used during a cesarean section undoubtedly affects the intensity and experience of pain after the operation. Materials and Methods: This prospective cohort study was conducted at the Clinic for Gynecology and Obstetrics, Clinical Center "Dragisa Misovic-Dedinje", Belgrade, Serbia. Patients at term pregnancy (37-42 weeks of gestation) with an ASA I score who delivered under general (GEA) or regional anesthesia (RA) by cesarean section were included in the study. Following the procedure, we assessed pain using the Serbian McGill questionnaire (SF-MPQ), Visual Analogue Scale (VAS) and the pain attributes questionnaire at pre-established time intervals of 2, 12, and 24 h after the procedure. Additionally, time to patient's functional recovery was noted. We also recorded the time to the first independent mobilization, first oral intake, and lactation establishment. Results: GEA was performed for 284 deliveries while RA was performed for 249. GEA had significantly higher postoperative sensory and affective pain levels within intervals of 2, 12, and 24 h after cesarean section. GEA had significantly higher postoperative VAS pain levels. On pain attribute scale intensity, GEA had significantly higher postoperative pain levels within all intervals. Patients who received RA had a shorter time to first oral food intake, first independent mobilization, and faster lactation onset in contrast to GEA. Conclusions: The application of RA presented superior postoperative pain relief, resulting in earlier mobilization, shorter time to first oral food intake, and faster lactation onset in contrast to GEA.

Incidence and associated factors of acute postoperative pain within the first 24 h in women undergoing cesarean delivery at a resource-limited setting in Addis Ababa, Ethiopia: A prospective observational study

Objective:

This study aimed to assess the incidence and associated factors of acute postoperative pain after cesarean section within the first 24 h of postoperative period.

Methods:

An institutional-based prospective observational study was conducted on parturients who had undergone cesarean section in Gandhi Memorial Hospital from 1 December 2019 to 28 February 2020. A numerical rating scale was used to evaluate the incidence of acute postoperative pain. Patients having a pain score of >4 were considered having moderate-to-severe pain on numerical rating scale. Data were analyzed using SPSS version 20. Bivariable and multivariable logistic regression were used to assess the association of variables. A p value of less than 0.05 was taken as significant association with dependent variables.

Result:

In total, 290 parturients participated in the study with a response rate of 98%. Moderate-to-severe acute postoperative pain after cesarean section was 76.2% (95% confidence interval: 71%, 81%) in the first 24 h postoperatively. On multivariable analysis, previous cesarean section history (adjusted odds ratio: 2.80, 95% confidence interval: 1.40, 5.55; p = 0.003), preoperative anxiety (adjusted odds ratio: 2.70, 95% confidence interval: 1.45, 5.05; p = 0.003), transverse incision type (adjusted odds ratio: 3.35, 95% confidence interval: 1.67, 6.72; p = 0.002), and incision length (adjusted odds ratio: 2.46, 95% confidence interval: 1.24, 4.85; p = 0.009) were identified as risk factors for postoperative moderate-to-severe acute pain.

Conclusion:

The incidence of moderate-to-severe postoperative pain was high in the first 24-h postoperative period; this indicates that pain management after cesarean section was treated inadequately. History of previous cesarean section, preoperative anxiety, transverse incision, and incision length >10 cm were the factors of postoperative acute pain after cesarean section. Therefore, we suggest the study institution develop a protocol for pain management.

Risk factors for postpartum depression in women undergoing elective cesarean section: A prospective cohort study

Background

Postpartum depression (PPD) has adverse effects on maternal and child health. Cesarean section (CS) is suggested to be associated with PPD, but no study has examined the risk factors for PPD in women who underwent CS. Therefore, this study aimed to investigate this association.

Methods

A prospective observational study was conducted between December 2020 and September 2021. In total, 590 women who underwent elective CS participated in this study. Data were collected using a questionnaire through a face-to-face interview at three time points: 32nd week of gestation, 2 days postpartum, and 6 weeks postpartum. PPD was defined by an Edinburgh Postnatal Depression Scale (EPDS) score of ≥ 11 at 6 weeks postpartum. Multivariate logistic regression analysis was performed to identify the risk factors for PPD.

Results

Among the 590 women, 25.4% had PPD (142/590). After adjustment for the confounding factors, high antenatal self-rating anxiety scale score (OR = 1.10, 95% CI = 1.04–1.16), PPD symptoms (EPDS ≥ 11) at 2 days postpartum (OR = 6.17, 95% CI = 1.35–28.31), and pain at 6 weeks postpartum (OR = 2.14, 95% CI = 1.24–3.69) were independently associated with PPD.

Conclusion

Prenatal anxiety, PPD symptoms occurring at an early postoperative stage, and pain at 6 weeks postpartum may be associated with an increased risk of PPD among women who undergo CS.

Traditional Chinese Acupressure Massage of the Quadriceps Femoris Can Relieve Flexion Pain after Undergoing Total Knee Arthroplasty

Objective

To reduce the pain of quadriceps during knee flexion after total knee arthroplasty and increase range motion of knee flexion.

Design

Three-month prospective before/after quality improvement project. Setting. Department of Bone and Joint Surgery. Participants. A total of 80 patients who met the surgical indications were admitted to the outpatient department for surgery. They were randomly grouped by computer in advance, and the patients were divided into two groups according to the time of admission, each with 40 cases. Intervention. The intervention group performed routine rehabilitation exercises and received quadriceps acupoint massages for 20 minutes twice a day for two consecutive weeks. The control group performed routine rehabilitation exercises, such as gentle quadriceps massage for 20 minutes twice a day for two consecutive weeks. Main Outcome Measures. PPT (pressure pain threshold) of quadriceps femoris/VAS (visual analog scale) of knee flexion and motion of knee flexion.

Results

The VAS score, range of motion, and tenderness threshold during flexion were significantly better in the intervention group than in the control group at 1, 2, and 4 weeks after surgery. But the VAS score, range of motion, and tenderness threshold did not significantly differ between groups at 12 weeks after surgery.

Conclusion

Acupoint massage of the quadriceps femoris can relieve early flexion pain in patients after total knee arthroplasty. The trial was registered at clinical trials.gov.

Predicting pain after Cesarean delivery: pressure algometry, temporal summation, three-item questionnaire

PURPOSE

Approximately one in five women will experience severe postoperative pain after Cesarean delivery (CD). Previously, a bedside three-item questionnaire (3-IQ) has shown to predict women experiencing higher evoked pain intensity after CD, with an area under the receiver operator characteristics (ROC) curve of 0.72. We hypothesized that the addition of psychophysical pain tests to the existing 3-IQ would improve the ability to predict severe pain in women undergoing elective CD under spinal anesthesia METHODS: This was a prospective cohort study on women undergoing elective CD under spinal anesthesia. Women were assessed preoperatively using the 3-IQ, pressure algometry (PA) and mechanical temporal summation (TS) response. All women received standard perioperative care, including a multimodal analgesia regimen that included intrathecal fentanyl and morphine. A 0-100 mm visual analogue scale (VAS) was used to assess the severity of pain at rest (VASr) and on movement (VASm) at 24 and 48 hr after surgery. Patient satisfaction and opioid consumption were also recorded. We performed ROC curve analyses to assess whether we could improve the ability to predict our primary outcome of severe pain on movement at 24 hr (VASm24 ≥ 70).

RESULTS

We studied 195 women. Median [interquartile range] VASm24 was 53 [32-72] and 28% of patients experienced a VASm24 ≥ 70. The ability to predict a VASm24 ≥ 70 assessed by the area under the ROC curve was 0.64 using the 3-IQ and 0.67 using the 3-IQ combined with TS and PA.

CONCLUSION

The addition of PA and TS to the 3-IQ model resulted in a predictive model that performed similarly to the 3-IQ model alone. Further research is warranted in this area to better predict women at risk of severe pain post CD.

The effects of acupressure on post-cesarean pain and analgesic consumption: a randomized single-blinded placebo-controlled study

OBJECTIVES

To assess the effects of P6 and LI4 acupressure on post-caesarean pain and analgesic consumption.

DESIGN

This was a randomized, single-blinded, placebo-controlled study conducted in a university-affiliated obstetrics clinic between July 2017 and July 2018.

PARTICIPANTS

Women (n = 132) were randomly assigned to acupressure (n = 44), placebo (n = 44) and control (n = 44) groups.

SETTING

All groups received routine nursing care and analgesia protocol for post-cesarean pain. Acupressure was performed in two sessions, the postpartum second and fourth hours, with the following protocol: bilaterally to P6 (point on wrist) and LI4 (point on hand) points (for 3 minutes on each point). In the placebo group, it was just touched without the pressure on acupressure points, but the main difference was that touching was too superficial to have a therapeutic effect. The control group received only routine nursing care and analgesia protocol for post-cesarean pain.

MAIN OUTCOME MEASURES

The post-caesarean pain was evaluated four times before and after each session using Visual Analog Scale for pain. Also, the analgesia protocol for post-cesarean pain was recorded for all women.

RESULTS

The acupressure group experienced the lowest level of post-cesarean pain compared with the placebo and control groups (P = 0.000). The consumption of pethidine hydrochloride and paracetamol was statistically lower in the acupressure group compared with the placebo and control groups (respectively, P = 0.002 and P = 0.040).

CONCLUSION

Acupressure is an effective method for reducing post-cesarean pain and analgesic consumption. Clinical trial registration: ClinicalTrials.gov: NCT04337801.

A Quality Improvement Project to Reduce Postcesarean Opioid Consumption

BACKGROUND

The opioid epidemic is a public health emergency in the United States, stemming in part from widespread misuse and overprescribing of opioids following surgery. Approximately 1 in 300 women with no prior exposure to opioids develops an opioid use disorder following cesarean birth. Effective management of postcesarean pain requires individualized treatment and a balance of the woman's goals for optimal recovery and ability to safely care for her newborn. The American College of Obstetricians and Gynecologists recommends a multimodal approach to pain management after cesarean birth.

METHODS

In April 2019, a multidisciplinary team was formed at New York University Langone Health to study opioid use postcesarean. The team used the Plan, Do, Study, Act process model for continuous quality improvement to launch a postcesarean pathway called "Your Plan After Cesarean," a standardized visual tool with quantifiable milestones. It facilitates integration of women's preferences in their postcesarean care, and emphasizes providers' routine use of nonpharmacological interventions to manage pain.

RESULTS

During the pilot period of the project, postcesarean high consumption of 55 to 120 mg of opioids was reduced from 25% to 8%. By January 2020, 75% of women postoperative cesarean took little-to-no opioids during their hospital stay. By February 2021, the total number of opioids consumed by women after cesarean birth in-hospital was reduced by 79%. Satisfaction among women with pain management after cesarean continued to be high.

CLINICAL IMPLICATIONS

Reduction in postcesarean opioid administration and the number of opioids prescribed at hospital discharge can be accomplished without having a negative effect on women's perceptions of post-op pain relief. These changes can potentially be a factor in helping to avoid an opioid-naive woman who has a cesarean birth from developing an opioid use disorder.

The Efficacy and Safety of Local Anesthetic Techniques for Postoperative Analgesia After Cesarean Section: A Bayesian Network Meta-Analysis of Randomized Controlled Trials

Objective

Cesarean section (CS) is one of the most frequently performed major surgical interventions. Local anesthetic techniques, a universal component of perioperative multimodal analgesia, are reportedly effective in reducing pain scores and opioid requirements. However, the optimal local anesthetic technique for postoperative CS pain remains unclear.

Methods

Six databases were searched, and a Bayesian network meta-analysis was performed. The outcomes included cumulative morphine consumption and pain scores at four time points, time to first analgesic request, postoperative nausea and vomiting, pruritus, and sedation.

Results

Sixty-eight studies with 5039 pregnant women were included. Six local anesthetic techniques were involved, including transversus abdominis plane block (TAPB), ilioinguinal and iliohypogastric nerve block, quadratus lumborum blocks, transversalis fascia plane block, erector spinae block, and wound infiltration. Compared to inactive controls, TAPB reduced cumulative morphine consumption at 6, 12, 24, and 48 h, pain scores at 6, 12, and 24 h (with the exception of 24 h at rest), the risk of postoperative nausea and vomiting, and sedation. Compared with inactive controls, ilioinguinal and iliohypogastric nerve block reduced cumulative morphine consumption at 6 and 24 h and pain scores at 6, 12, and 24 h during movement. Compared with inactive controls, quadratus lumborum blocks reduced cumulative morphine consumption at 24 and 48 h and pain scores at 6 and 12 h and lengthened the time to first analgesic request. Compared with inactive controls, wound infiltration reduced cumulative morphine consumption at 12 and 24 h, pain scores at 12 and 24 h during movement, and risk of sedation. Compared with inactive controls, erector spinae block reduced pain scores at 6 and 12 h. Transversalis fascia plane block was found to have similar outcomes to inactive controls.

Conclusion

TAPB is the most comprehensive local anesthetic technique for postoperative CS analgesia in the absence of intrathecal morphine.

The effectiveness of the abdominal binder in relieving pain after cesarean delivery: A systematic review and meta-analysis of randomized controlled trials

BACKGROUND

Abdominal binder is a non-pharmacological method of relieving pain after surgical procedures.

OBJECTIVES

To evaluate the effectiveness of the abdominal binder in relieving pain and distress scores after cesarean delivery (CD).

SEARCH STRATEGY

The following terms were searched: cesarean section, cesarean, caesarean, abdominal deliveries, C-section, abdominal delivery, abdominal binding, binder, and abdominal binder.

SELECTION CRITERIA

Randomized controlled trials (RCTs) with patients undergoing CD receiving an abdominal binder compared with non-users of the abdominal binder.

DATA COLLECTION AND ANALYSIS

Five electronic databases were searched until November 2019. Records were screened for eligibility. Data were extracted independently and analyzed. The main outcomes were pain and distress scores.

RESULTS

The final analysis included six RCTs. Overall effect estimate favored the abdominal binder group over the control group in the following outcomes: VAS pain scores after 24 h (mean difference [MD] -1.76; 95% confidence interval [CI] -3.14 to -0.39; P = 0.01), VAS scores after 48 h (MD -1.21; 95% CI -1.51 to -0.90; P < 0.001), distress score after 24 h (MD -1.87; 95% CI -3.01 to -0.73; P = 0.001), and distress score after 48 h (MD -1.87; 95% CI -3.07 to -0.67; P = 0.002).

CONCLUSION

The abdominal binder could be an effective, simple, non-pharmacological option of relieving pain and distress after CD.

Predicted Versus Non-Predicted Opioid Administration Using Preoperative Pain Sensitivity in Patients Undergoing Gynecological Surgery: A Randomized-Controlled Trial

Individualized administration of opioids based on preoperative pain sensitivity may improve postoperative pain profiles. This study aimed to examine whether a predicted administration of opioids could reduce opioid-related adverse effects after gynecological surgery. Patients were randomized to the predicted group or control group. Participants received a preoperative sensory test to measure pressure pain thresholds. Patients were treated with a higher or lower (15 or 10 μg/mL) dose of fentanyl via intravenous patient-controlled analgesia. The opioid dose was determined according to pain sensitivity in the predicted group, while it was determined regardless of pain sensitivity in the control group. The primary outcome was the incidence of nausea over the first 48 h postoperative period. Secondary outcomes included postoperative pain scores and opioid requirements. There was no difference in the incidence of nausea (40.0% vs. 52.5% in predicted and control groups, respectively; p = 0.191) and postoperative pain scores (3.3 vs. 3.5 in predicted and control groups, respectively; p = 0.691). However, opioid consumptions were lower in the predicted group compared to the control group (median 406.0 vs. 526.5 μg; p = 0.042). This study showed that offering a predicted dose of opioids according to pain sensitivity did not affect the incidence of nausea and pain scores.

PROSPECT guideline for elective caesarean section: updated systematic review and procedure-specific postoperative pain management recommendations

Caesarean section is associated with moderate‐to‐severe postoperative pain, which can influence postoperative recovery and patient satisfaction as well as breastfeeding success and mother‐child bonding. The aim of this systematic review was to update the available literature and develop recommendations for optimal pain management after elective caesarean section under neuraxial anaesthesia. A systematic review utilising procedure‐specific postoperative pain management (PROSPECT) methodology was undertaken. Randomised controlled trials published in the English language between 1 May 2014 and 22 October 2020 evaluating the effects of analgesic, anaesthetic and surgical interventions were retrieved from MEDLINE, Embase and Cochrane databases. Studies evaluating pain management for emergency or unplanned operative deliveries or caesarean section performed under general anaesthesia were excluded. A total of 145 studies met the inclusion criteria. For patients undergoing elective caesarean section performed under neuraxial anaesthesia, recommendations include intrathecal morphine 50–100 µg or diamorphine 300 µg administered pre‐operatively; paracetamol; non‐steroidal anti‐inflammatory drugs; and intravenous dexamethasone administered after delivery. If intrathecal opioid was not administered, single‐injection local anaesthetic wound infiltration; continuous wound local anaesthetic infusion; and/or fascial plane blocks such as transversus abdominis plane or quadratus lumborum blocks are recommended. The postoperative regimen should include regular paracetamol and non‐steroidal anti‐inflammatory drugs with opioids used for rescue. The surgical technique should include a Joel‐Cohen incision; non‐closure of the peritoneum; and abdominal binders. Transcutaneous electrical nerve stimulation could be used as analgesic adjunct. Some of the interventions, although effective, carry risks, and consequentially were omitted from the recommendations. Some interventions were not recommended due to insufficient, inconsistent or lack of evidence. Of note, these recommendations may not be applicable to unplanned deliveries or caesarean section performed under general anaesthesia.

Women Construct Their Birth Narratives and Process Unplanned Cesarean Births Through Storytelling

OBJECTIVE

To examine birth narratives of primiparous women who experienced unplanned cesarean births to improve nursing care.

DESIGN

Descriptive, qualitative.

SETTING

The family/newborn units of a large teaching hospital in the Northeast United States.

PARTICIPANTS

Fourteen women who experienced unplanned cesarean births of singleton infants at term.

METHODS

We used semistructured interviews to analyze the participants' birth narratives. Within 48 hours of birth, participants answered the prompt: "Tell us your birth story." Four perinatal nurse experts in consultation with a qualitative research expert ordered, analyzed, and coded data into themes and subthemes.

RESULTS

We identified the following four themes: Changing Reality: Transition to Labor, Expectations Meeting Reality: Navigating the Unknown, Transition to Motherhood: The Cesarean Birth Experience, and Accepting the New Reality.

CONCLUSION

Childbearing women need time immediately after birth to process their experiences. Our findings highlight avenues for changes in clinical care to optimize women's experiences of unplanned cesarean births. Participants wanted clearer communication with the maternity care team, voices in the decision-making process, and inclusion of support persons to optimize their birth experiences. Because negative birth experiences affect maternal and child well-being, it is important to understand women's perceptions and develop strategies to assist them in the construction of their birth narratives.

A prospective observational study to investigate the relationship between local anesthetic infiltration pain before spinal anesthesia and acute and chronic postsurgical pain in women undergoing elective cesarean delivery

BACKGROUND

Cesarean delivery is one of the most common procedures performed worldwide. We conducted this prospective cohort study to evaluate the association between local anesthetic infiltration (LAI) pain prior to spinal anesthesia and pain and morphine consumption within 24 h after cesarean delivery (primary outcomes). A secondary objective was to assess the association between LAI pain and pain at one month postoperatively.

METHODS

Recruitment of 216 eligible women scheduled for elective cesarean delivery. Local infiltration before spinal anesthesia was performed using a 24-gauge needle and 3 mL 2% plain lidocaine. All subjects received 2.2 mL 0.5% hyperbaric bupivacaine with 200 µg morphine for spinal anesthesia. A 0-10 verbal numerical rating scale was used to assess LAI pain severity, and subsequent pain at 24 h, 1, 3 and 12 months.

RESULTS

We found a moderate correlation between LAI pain intensity and severity of acute pain at rest (rho=0.56, P <0.001) and with movement (rho=0.58, P <0.001) and a weak correlation with morphine consumption (rho=0.17, P=0.01) within 24 h postoperatively. We also found a positive correlation between LAI pain and the severity of persistent wound pain at rest (rho=0.30, P <0.001) and with movement (rho=0.52, P <0.001) at 1 month. The incidence of wound pain at 1, 3 and 12 months postoperatively was 37.1%, 7.0% and 1.4%, respectively.

CONCLUSIONS

Pain from LAI prior to spinal anesthesia is significantly associated with subsequent postoperative pain both acutely and at one month in women scheduled for elective cesarean delivery under spinal anesthesia.