Erector Spinae Plane (ESP) Block: a New Paradigm in Regional Anesthesia and Analgesia

Efficacy of an erector spinae plane block for renal colic: a systematic review and meta-analysis

BACKGROUND AND AIM

The passage of kidney stones through the ureter creates renal colic, a severe visceral abdominal pain. Renal colic is typically managed with non-steroidal anti-inflammatory drugs and opioids. Yet, these treatments often fail to provide adequate pain relief. The erector spinae plane block (ESPB) has emerged as a potential alternative treatment. This systematic review summarises the current body of evidence on the efficacy and safety of ESPB for renal colic in the ED.

METHODS

A systematic review and meta-analysis of randomised controlled trials (RCTs) and case series of ESPB in ED patients were conducted. PubMed, EMBASE, Web of Science and ClinicalTrial.gov databases were electronically searched up to 10 June 2024, for studies that compared ESPB with standard care or placebo. The Cochrane risk of bias-2 tool was used to assess the risk of bias of included studies. Meta-analysis using a random effects model was performed if two or more studies reported the same outcome. The Grading of Recommendations Assessment, Development, and Evaluation tool was used to assess the certainty of the evidence.

RESULTS

Four studies were included, including two RCTs and two case series. A total of 53 patients received an ESPB, compared with 40 patients who received standard care. All studies were rated as having a high overall risk of bias. Meta-analysis showed a large and significant effect of ESPB on pain reduction after 30 min (standardised mean difference (SMD) -1.41 95% CI -1.90 to -0.91) and after 60 min (SMD -1.94 95% CI -3.36 to -0.52), however the level of evidence was downgraded to very low certainty due to substantial heterogeneity (I2=85%), serious concerns of bias and large imprecision. Heterogeneity in other outcome measurements precluded meta-analysis.

CONCLUSIONS

Although statistically significant, there is a low certainty regarding the positive effect of ESPB on pain reduction for renal colic in the ED. High-quality RCTs focusing on patient-reported outcomes are needed to establish the merit of ESPB for this indication.

PROSPERO REGISTRATION NUMBER

CRD42024554077.

Erector spinae plane block as an alternative to caudal block in concurrent pediatric urologic and inguinal surgery: A double-blinded randomized controlled trial

BACKGROUND

The objective of this study is to evaluate and compare the analgesic effect of ultrasound (US)-guided a high-volume bilateral erector spinae plane (ESP) block with that of US-guided caudal block (CB) in these surgeries.

METHODS

This prospective, randomized, double-blind study was conducted with 60 male patients, aged 1 to 7 years, who underwent lower abdominal surgery and circumcision concurrently. The patients were randomized into 2 groups: ESP and CB. US-guided ESP block at the L4 vertebral level was performed preoperatively using 1 mL/kg 0.125% bupivacaine (maximum of 20 mL), which was applied to patients in the ESP group. US-guided CB was performed preoperatively using 1 mL/kg 0.125% bupivacaine (max 20 mL), which was applied to patients in the CB group. Face, legs, activity, cry, and consolability scores for pain were recorded at 30 minutes and 1, 2, 4, 6, 12, and 24 hours postoperatively. Analgesic requirements, time to first analgesic requirement, and postoperative complications were also documented.

RESULTS

The 6- and 12-hours postoperative face, legs, activity, cry, and consolability scores were lower in the ESP group (P = .011, P = .021, respectively). The number of analgesic requirements in the first 24 hours postoperatively was significantly lower in the ESP group (P = .002). No postoperative complications were observed in either of the groups.

CONCLUSION

This study shows that the ESP block provides effective and safe postoperative analgesia compared to the CB in pediatric patients undergoing circumcision and lower abdominal surgeries. Clinicians may consider the ESP block as another option for CB in such surgeries based on their clinical experience.

Surgeon-Guided Fluoroscopic Erector Spinae Plane Block (ESPB) versus Anesthetist-Guided Ultrasonic ESPB for Perioperative Analgesia in Lumbar Fusion Surgery- a Prospective Randomized Control Study

Study designProspective, randomized control study.ObjectiveTo assess the safety and efficacy of fluoroscopy-guided vs ultrasound-guided Erector Spinae Plane Block (ESPB) for perioperative analgesia in lumbar fusion surgery.Materials and Methods66 patients requiring single-level lumbar fusion were randomized into 2 groups. One group had fluoroscopy-guided ESPB by the surgeon (Fluoro-ESPB group) and the other group had Ultrasound-guided ESPB by the anesthetist (USG-ESPB). Demographic details, intraoperative parameters (perioperative total opioid consumption, muscle relaxants used, heart rate, blood pressure), and postoperative parameters (VAS score, alertness, satisfaction score) were recorded and analyzed.ResultsDuring the initial 48 hours following the surgery, both groups provided good perioperative analgesia, and reported very low and comparable postoperative pain scores (VAS scale). The mean VAS score was 2.7 ± 0.5 in the Fluoro-ESPB group and 2.7 ± 0.5 in the USG-ESPB group (P = 0.91). The average time taken to deliver the block in the Fluoro-ESPB group (3.01 ± 0.97 mins) was significantly less than in the USG-ESPB group (4.74 ± 1.49 mins) (P = 0.00). The total perioperative opioid consumption (TOC), total intraoperative muscle relaxant consumption, and intraoperative blood loss were similar in both groups (Fluoro- ESPB, USG ESPB) (P > 0.05). The postoperative MOASS score was consistently high across both groups. The satisfaction scores were high and comparable (P = 0.403).ConclusionThe fluoroscopy-guided ESPB is a safe and effective alternative to the traditional ultrasound-guided technique. It can be performed by the surgeon, reducing overall procedure time, and improving workflow.

Comparison Between Relative Efficacy of Erector Spinae Plane Block and Caudal Epidural Block for Postoperative Analgesia in Lumbar Fusion Surgery- A Prospective Randomized Controlled Study

STUDY DESIGN

Prospective, randomized controlled double-blinded study.

OBJECTIVE

To compare the relative efficacy of ultrasound-guided ESPB and CEB for postoperative analgesia after a single-level lumbar fusion surgery and compared it with conventional multimodal analgesia.

METHODS

81 patients requiring single-level lumbar fusion surgery were randomly allocated into 3 groups (ESPB group, CEB group, and the control group). Demographic and surgical data (blood loss, duration of surgery, perioperative total opioid consumption, muscle relaxants used) were assessed. Postoperatively, the surgical site pain, alertness scale, satisfaction score, time to mobilization, and complications were recorded.

RESULTS

The total opioid consumption in the first 24 hours was significantly lower in both the block groups than in the control group (103.70 ± 13.34 vs 105 ± 16.01 vs 142.59 ± 40.91mcg; P < .001). The total muscle relaxant consumption was also significantly less in block groups compared to controls (50.93 ± 1.98 vs 52.04 ± 3.47 vs 55.00 ± 5.29 mg; P < .001). The intraoperative blood loss was significantly less in both the block group (327.78 ± 40.03 mL, 380.74 ± 77.80 mL) than the control group (498.89 ± 71.22 mL) (P < .001). Among the block groups, the immediate postoperative pain relief was better in the CEB group, however, the ESPB group had a longer duration of postoperative pain relief.

CONCLUSION

Both ESPB and CEB produce adequate postoperative analgesia after lumbar fusion however the duration of action was significantly longer in the ESPB group with relatively shorter surgical time and lesser blood loss compared to the CEB group.

Continuous Bilateral Serratus Anterior Plane Block: An Effective Analgesic Strategy for Managing Extensive Bilateral Rib Fractures

Patients with multiple bilateral rib fractures frequently experience intense pain and limited thoracic mobility, leading to complications such as reduced coughing efficiency, pulmonary infection, and respiratory failure. While thoracic epidural analgesia is often considered the gold standard for pain management in these cases, its use is limited by contraindications and the need for patient positioning that exposes the back. The serratus anterior plane block, guided by ultrasound, offers a promising alternative for managing thoracic pain, particularly for polytrauma patients who cannot sit up or assume lateral positions required for traditional regional blocks. This case report describes a patient admitted to the intensive care unit following a fall that caused multiple bilateral rib fractures. Due to contraindications for epidural analgesia related to coagulopathy, bilateral serratus anterior plane blocks were performed with catheter placement on each side, providing effective pain relief and improving respiratory function.

Surgical vs ultrasound-guided lumbar erector spinae plane block for pain management following lumbar spinal fusion surgery

PURPOSE

Spinal surgery is associated with severe diffuse pain in the postoperative period. Effective pain management plays an essential role in reducing morbidity and mortality. This study is designed to compare the ultrasound-guided erector spinae plane (ESP) block and surgical infiltrative ESP block for postoperative analgesia management after lumbar spinal fusion surgery.

METHODS

The patients who underwent two or three levels of posterior lumbar spinal fusion surgery were randomly allocated into one of three groups with 30 patients each (Group SE = Surgical ESP block; Group UE = ultrasound-guided ESP block; Group C = Controls). The primary aim was to compare postoperative opioid consumption, and the secondary aim was to evaluate postoperative dynamic and static pain scores and the incidence of opioid-related adverse effects.

RESULTS

There was a significant difference in terms of opioid consumption, rescue analgesia on demand, and both static and dynamic pain scores between groups at all time periods (p < 0.05). Group SE and Group UE had lower pain scores and consumed fewer opioids than the controls (p < 0.05). However, the Group UE had lower pain scores and opioid consumption than the Group SE. The sedation level of patients was significantly higher in the control group than in the other two groups. Also, nausea was more common in controls than in the other groups.

CONCLUSION

While both surgical and ultrasound-guided ESP blocks reduced opioid consumption compared to the controls, the patients who received ultrasound-guided ESP blocks experienced better postsurgical pain relief than those in the other groups (surgical ESP and controls).

Large Hematoma Following Erector Spinae Plane Block: A Case Report

The ultrasound-guided erector spinae plane (ESP) block is an emerging fascial plane block, first described in 2016 for treating thoracic neuropathic pain. Since its introduction, it has been incorporated into multiple surgical procedures and has demonstrated proven benefits such as postoperative analgesia and reduction in opioid consumption. Being a superficial plane block, it avoids complications such as pneumothorax and hematoma, making it a safe mode of analgesia. We report a rare case of hematoma formation following ESP block in a patient who underwent mitral valve repair under cardiopulmonary bypass.

Year in Review 2023: Noteworthy Literature in Cardiac Anesthesiology

Notable clinical research published in 2023 related to cardiac anesthesia included studies focused on resuscitation and pharmacology, regional anesthesia, technological advances, and novel gene therapies. We reviewed 241 articles to identify 25 noteworthy studies that represent the most significant research related to cardiac anesthesia from the past year. Overall, improvements in clinical practice have enabled decreased morbidity and mortality with a renewed focus on mechanical circulatory support and transplantation.

Cadaveric study of the ultrasound-guided erector spinae plane block over the transverse process of the twelfth thoracic vertebra in dogs: Transversal vs longitudinal approach

This study describes a transversal (TV) ultrasound-guided erector spinae plane (ESP) block technique over the transverse process of T12. And evaluates the distribution of the dye and affected nerves branches compared to a longitudinal (LNG) approach over the transverse process of T12 in canine cadavers. Secondly, it also compares de anatomy and dimensions of the transverse processes of T12 with T9 and T5. For this double-masked, cadaveric experimental study, 12 adult Beagle cadavers were injected with 0.6 mL/kg of dye/contrast. Spread was evaluated by computed tomography (CT) and dissection. Mean bodyweight was 9.76 (±0.59) kg. The TV and LNG approaches stained a median (range) of four (2-6) and three (1-6) medial branches of the dorsal rami of the spinal nerves, three (2-6) and three (2-5) lateral branches, and one (0-3) and one (0-4) ventral branches, respectively. Dye was detected in the epidural space in 55.6% and 66.7% of cases for the TV and LNG approaches, respectively (P=0.63). And in the ventral paravertebral compartment in 22.2% and lymphatics in 88.8% in both approaches. There were no statistical differences for the spread. The dorsolateral edge of the transverse process (TP) was not visible with CT at T12. The mean (±SD) length of the TP was significantly shorter at T12 [3.34 (±0.22)] mm, compared to T9 [6.08 (±0.47)] mm and T5 [5.93 (±0.62)] mm (P <0.001). This study showed similar distribution whether using a TV or LNG approach and differences in the anatomy and length of the T12 TP.

Comparison of spinal anaesthesia and erector spinae plane block in unilateral inguinal hernia: Randomised clinical trial

INTRODUCTION

The objective of our study was to compare erector spinae plane block (ESP) with spinal anaesthesia (SA) for inguinal hernia repair with respect to anaesthetic efficacy, post-operative analgesia, mobilisation, discharge, complication and side effects.

PATIENTS AND METHODS

The study included 52 patients over 50 years of age, with the American Society of Anaesthesia physical status Class I-III. Group ESP ( n = 26) was applied 30 ml of mixed local anaesthetic mixture applied at the L1 level to the plane of the erector spinae and 10 ml of tumescent when necessary, while Group SA ( n = 26) was applied 3 ml of 0.5% bupivacaine at the L3-L4/L2-L3 level.

RESULTS

Intraoperative Visual Analogue Scale (VAS) value was lower in Group S, whereas the 6 th -h VAS value was lower in Group ESP ( P < 0.05). There was no significant difference between the VAS values at hour 12 and 24 ( P > 0.05). Reaching post-anaesthesia discharge criteria 9 and time to mobilisation and oral feeding was shorter in Group ESP, whereas post-procedure waiting time was shorter in Group S ( P < 0.05). While the need for post-operative analgesics was higher in Group S ( P < 0.05), there was a high level of patient satisfaction in Group ESP ( P = 0.05). Intraoperative midazolam requirement was lower in Group S, post-operative diclofenac requirement was lower in Group ESP ( P < 0.05), post-operative urinary retention and tremor were higher in Group S ( P = 0.05).

CONCLUSION

ESP block provides adequate surgical anaesthesia compared to SA (non-inferiority) for inguinal hernia repair. It is associated with less analgesic requirement, low post-operative pain, less complication rate and high patient satisfaction in the post-operative period.

Efficacy of Erector Spinae Plane (ESP) Block for Non-cardiac Thoracic and Upper Abdominal Surgery: A Single Institute Comparative Retrospective Case Series

Introduction Erector spinae plane (ESP) block was first introduced for the management of thoracic pain but has become increasingly popular for the treatment of abdominal surgical pain. Previous studies have shown the ESP block can be easily adapted to abdominal procedures at the corresponding dermatome level and provide postoperative analgesia. Though the versatility, simplicity, and safety of the ESP block have been demonstrated, there is a gap in the literature regarding its comparison between thoracic and abdominal surgeries. This study aims to evaluate the efficacy of the ESP block in treating acute postoperative pain in patients undergoing thoracic and abdominal surgeries. Methods This retrospective study included 50 patients in the non-cardiac thoracic surgery group (bilateral breast mastectomy with reconstruction) and 50 patients in the abdominal surgery group (robotic or laparoscopic sleeve gastrectomy). Data was obtained via the acute pain service records at a tertiary care center from 2018 to 2022. All patients received bilateral ESP blocks, performed under ultrasound guidance. Various parameters were evaluated including oral morphine equivalents (OMEs) and visual analog scale (VAS) scores during post-anesthesia care unit (PACU), 6, 12, and 24 hours postop. The use of abortive antiemetic medications within 24 hours was also measured to evaluate the incidence of nausea and vomiting. The results were analyzed and compared. No control group is included, as all patients at our institution receive a peripheral nerve block as a part of the institution's enhanced recovery pathway (ERP). Results This retrospective study included 50 patients in the non-cardiac thoracic surgery group (bilateral breast mastectomy with reconstruction) and 50 patients in the abdominal surgery group (robotic or laparoscopic sleeve gastrectomy). Compared to the thoracic group, the abdominal group had a statistically higher VAS score in PACU with mean difference (MD) 1.3 VAS, 95% confidence interval (CI) 0.03-2.56, p-value 0.0443, statistically higher OME consumption in the PACU (difference 13.35 OME, 95% CI 4.97-21.73, p-value 0.0003), and required significantly more antiemetic pharmacotherapy (mean 1.4 antiemetics administered, 95% CI 0.84-2.04, p-value <0.0001). Despite the abdominal group having more OME utilization in the PACU, there was no difference in cumulative OME use in the first 24 hours (95% CI -9.745-24.10, p-value 0.4021). Conclusion In this study, we demonstrated that ESP blocks are an effective regional anesthesia technique to reduce postoperative pain and opioid consumption. The ESP block can serve as a useful and safe alternative to either thoracic epidural or paravertebral block techniques in thoracic and upper abdominal surgeries for perioperative pain management.

Comparison of Erector Spinae Plane Block and Pectointercostal Facial Plane Block for Enhanced Recovery After Sternotomy in Adult Cardiac Surgery

OBJECTIVES

This study aimed to investigate and compare the effects of the pectointercostal fascial plane block (PIFPB) and the erector spinae plane block (ESPB) on enhancing the recovery of patients who undergo cardiac surgery.

DESIGN

A randomized, controlled, double-blinded study.

SETTING

The operating rooms and intensive care units of university hospitals.

PARTICIPANTS

One hundred patients who were American Society of Anesthesiologists class II to III aged 18-to-70 years scheduled for elective cardiac surgery.

INTERVENTIONS

Patients were randomly assigned to undergo either ultrasound-guided bilateral PIFPB or ESPB.

MEASUREMENTS AND MAIN RESULTS

Patients shared comparable baseline characteristics. Time to extubation, the primary outcome, did not demonstrate a statistically significant difference between the groups, with median (95% confidence interval) values of 115 (90-120) minutes and 110 (100-120) minutes, respectively (p = 0.875). The ESPB group had a statistically significant reduced pain score postoperatively. The median (IQR) values of postoperative fentanyl consumption were statistically significantly lower in the ESPB group than in the PIFPB group (p < 0.001): 4 (4-5) versus 9 (9-11) µg/kg, respectively. In the ESPB group, the first analgesia request was given 4 hours later than in the PIFPB group (p < 0.001). Additionally, 12 (24%) patients in the PIFPB group reported nonsternal wound chest pain, compared with none in the ESPB group. The median intensive care unit length of stay for both groups was 3 days (p = 0.428).

CONCLUSIONS

Erector spinae plane block and PIFPB were found to equally affect recovery after cardiac surgery, with comparable extubation times and intensive care unit length of stay.

Effects of erector spinae plane block on opioid consumption in patients undergoing hand-assisted laparoscopic donor nephrectomy: a randomized controlled trial

BACKGROUND

The erector spinae plane block is a relatively new regional anesthesia technique that is expected to provide some benefits for postoperative analgesia. This study investigated the effects of erector spinae plane block on postoperative opioid consumption in kidney donors undergoing hand-assisted laparoscopic donor nephrectomy for renal transplantation.

METHODS

Fifty-two donors scheduled for elective hand-assisted laparoscopic donor nephrectomy were randomly divided into the block (25 donors) and control (27 donors) groups. Donors in the block group received 30 mL of 0.25% bupivacaine under ultrasound guidance, whereas the control group received no block treatment. The primary outcome measure was the amount of fentanyl administered via patient-controlled analgesia at 24 h. Secondary outcomes included the duration of stay, opioid consumption in the post-anesthesia care unit, and pain scores during the recording hours.

RESULTS

No significant differences were observed between the groups regarding total opioid consumption converted to intravenous morphine equivalent administered via patient-controlled analgesia (33.3±21.4 mg vs. 37.5±18.5 mg; P=0.27) and in the postanesthesia care unit (1.5±0.9 mg vs. 1.4±0.8 mg; P=0.55). The duration of stay in the postanesthesia care unit (86.3±32.6 min vs. 85.7±33.6 min; P=0.87) was similar between the groups. There was no significant difference between the groups in the postoperative donor-reported NRS pain scores (P>0.05 for all the time points).

CONCLUSIONS

Preoperative erector spinae plane block is not an effective strategy for reducing postoperative pain or opioid consumption in patients undergoing hand-assisted laparoscopic donor nephrectomy. Different block combinations are needed for optimal pain management in hand-assisted laparoscopic donor nephrectomy.

Erector spinae plane block as an anesthesia technique for an emergent thoracotomy; a case report

BACKGROUND

The erector spinae plane block (ESPB) is a novel regional block technique for pain management following thoracic surgeries. However, there are minimal cases in which the technique was used as the main anesthesia technique during surgery.

CASE PRESENTATION

Here, we report the successful use of ESBP for applying anesthesia in a case during an emergent thoracotomy for performing pericardiotomy and loculated tamponade evacuation.

CONCLUSIONS

Using ESPB with a higher concentration of local anesthetics, in this case, prepared appropriate anesthesia for performing an emergent thoracotomy while avoiding multiple needle insertions and the risk of further hemodynamic instability.

The Efficacy of Continuous Serratus Anterior and Erector Spinae Plane Blocks vs Intercostal Nerve Block in Uniportal-Vats Surgery: A Propensity-Matched Prospective Trial

BACKGROUND

To evaluate the analgesic efficacy of continuous erector spinae plane block(c-ESPB) and serratus anterior plane block(c-SAPB) versus the intercostal nerve block (ICNB) in Uniportal-VATS in terms of pain control, drug consumption, and complications.

METHODS

Ninety-three consecutive patients, undergone one of the three peripheral nerve blocks after Uniportal-VATS, were prospectively enrolled. A 1:1 propensity score matching was used to minimize bias.

RESULTS

C-ESPB and c-SAPB groups had no difference in morphine request upon awakening compared to ICNB. A higher VAS-score was recorded in c-ESPB compared to ICNB in the first 12 h after surgery. A significantly lower consumption of paracetamol in II postoperative day (p.o.d.) and tramadol in I and II p.o.d. was recorded in the c-ESPB group compared to the ICNB group. A higher dynamic VAS score was recorded at 24 h and 48 h in the ICNB group compared to the c-SAPB. No difference was found in safety, VAS-score and drug consumption between c-ESPB and c-SAPB at any given time, except for a higher tramadol request in c-SAPB in II p.o.d.

CONCLUSIONS

C-ESPB and c-SAPB appear to have the same safety and analgesic efficacy when compared between them and to ICNB in Uniportal-VATS approach. C-ESPB showed a delayed onset of analgesic effect and a lower postoperative drug consumption compared to ICNB.

Ultrasound-guided erector spinae plane block in coronary artery bypass surgery: the role of local anesthetic volume-a prospective, randomized study

BACKGROUND

Erector spinae plane block has been shown to help with pain management in different regions and many areas with different indications. However, the effectiveness of this block in cardiac surgery has been shown in the literature, the optimal volume remains unclear. The aim of this study is to determine the analgesic efficacy of two different volumes of local anesthetic injection used in ultrasound-guided bilateral-thoracic erector spinae plane block in patients undergoing coronary artery bypass graft.

METHODS

This study was conducted on adult patients undergoing surgery with coronary artery bypass graft, and 70 patients were analyzed in each group. Group 20 received erector spinae plane block with 20 ml of 0.25% bupivacaine, Group 30 received 30 ml of 0.25% bupivacaine bilaterally. Postoperative sternotomy and chest tube-related pain were evaluated using the numerical rating scale (NRS) at rest and during movement.

RESULTS

There were significant differences between the groups regarding rescue tramadol consumption was higher in Group 20 than in Group 30 (25/35 vs. 2/35, p < 0.001). In addition, there were substantial differences between the two groups concerning the time of the first-rescue analgesic requirement. The mean time ± standard deviation was 11.26 ± 9.57 h and 24.03 ± 4.12 h in Groups 20 and 30 (p < 0.001). The median scores, both at sternotomy and chest tubes, were significantly lower in Group 30 than in Group 20 at the different time points after the surgery (p < 0.05).

CONCLUSIONS

In coronary artery bypass graft surgery, erector spinae plane block performed with 30 ml instead of 20 ml on each side resulted in less pain in the sternum and chest tube region, less need for rescue analgesics, and delayed first-rescue analgesic requirement.

Regional anesthesia for geriatric population

Advancements in modern health care over 20 years have substantially increased the average lifespan in developed countries, and the fastest growing population is the elderly population. The proportion of people in Saudi Arabia aged 60 or more is predicted to be 25 percent of the total population of 40 million by the end of 2050. Moreover, the number of people aged 80 or more is expected to reach 1.6 million or 4 percent of the total population in the same period. Improvements in surgical techniques, anesthesia, and intensive care units make surgical interventions in older and sicker patients possible. It is estimated that over half of the population older than 65 years will require surgical intervention at least once during the remainder of their lives. Therefore, elderly patients are becoming an even larger part of anesthetic practice. Regional anesthesia (RA) is frequently used in elderly patients, especially during orthopedic surgery, genitourologic and gynecologic procedures, and hernia repair. Although age can no longer be considered a contraindication to anesthesia and surgery, anesthesia-related morbidity and mortality remain higher among elderly than among young adult surgical patients. Undoubtedly, peripheral nerve (PN) blocks improve analgesia and reduce opioid consumption and their associated side effects. This is beneficial in the perioperative care of elderly patients who may have less physiologic reserve to withstand the side effects of general anesthesia (GA).

Effects of Erector Spinae Plane Block on Postoperative Pain and Quality of Recovery Questionnaire Scores in Video-Assisted Thoracoscopic Surgery: A Randomized Controlled Study

OBJECTIVES

Opioid-free anesthesia with erector spinae plane block (ESPB) has the potential to decrease perioperative opioid need, thereby potentially reducing related complications. This study aimed to compare opioid-free anesthesia with ESPB and standard opioid-based balanced anesthesia in patients undergoing video-assisted thoracic surgery (VATS) in terms of postoperative opioid need (through patient control analgesia) as well as postoperative pain management, recovery quality, and opioid-related side effects.

METHODS

Seventy-four patients, ranging in age from 18 to 75 years, who underwent lobectomy with VATS were included in this randomized-controlled study. The opioid-free group had ESPB, and no opioid was used during anesthesia maintenance. The opioid group received standard anesthesia with opioid use. Postoperative morphine requirement, postoperative pain as measured by the visual analog scale (VAS), intraoperative vital parameters, recovery quality using the Quality of Recovery-40 (QoR-40) questionnaire, and opioid-related complications were compared between groups.

RESULTS

The opioid-free group received a significantly lower total dose of morphine during the first 24 postoperative hours through patient-controlled analgesia (PCA) when compared to the opioid group (7.3±3.4 vs. 21.7±7.9 mg, p<0.001). In addition, the opioid-free group had significantly better postoperative pain scores and QoR-40 scores (184.3±7.5 versus 171.2±6.4, p<0.001), shorter times to mobilization (5.5±0.8 versus 8.1±1.1 hours, p<0.001), and oral intake (5.8±0.6 versus 6.4±0.6 hours, p<0.001), as well as less frequent opioid-related side effects.

CONCLUSION

The findings of this study suggest that opioid-free anesthesia with ESPB represents a promising option for patients undergoing lobectomy with VATS. It has the potential to decrease postoperative opioid need, improve postoperative pain management, and reduce opioid-related unwanted consequences.

Ultrasound-Guided Blocks for Spine Surgery: Part 1-Cervix

Postoperative pain is common following spine surgery, particularly complex procedures. The main anesthetic efforts are focused on applying multimodal analgesia beforehand, and regional anesthesia is a critical component of it. The purpose of this study is to examine the existing techniques for regional anesthesia in cervical spine surgery and to determine their effect and safety on pain reduction and postoperative patient's recovery. The electronic databases were searched for all literature pertaining to cervical nerve block procedures. The following peripheral, cervical nerve blocks were selected and described: paravertebral block, cervical plexus clock, paraspinal interfascial plane blocks such as multifidus cervicis, retrolaminar, inter-semispinal and interfacial, as well as erector spinae plane block and stellate ganglion block. Clinicians should choose more superficial techniques in the cervical region, as they have been shown to be comparably effective and less hazardous compared to paravertebral blocks.

Perioperative analgesic efficacy and safety of erector spinae plane block in posterior cervical spine surgery-a double blinded, randomized controlled study

BACKGROUND CONTENT

Posterior cervical spine surgery (PCSS) are typically open surgeries and entail significant postoperative pain. Current perioperative pain management in PCSS is reliant on multimodal analgesia. While perioperative epidural anesthetic infusion can be used in lumbar surgeries, this is not an option in the cervical spine. Pre-emptive regional analgesia through erector spinae plane block (ESPB) has shown significant perioperative analgesic benefits in lumbar spine surgeries. There are no such clinical studies in PCSS.

PURPOSE

To assess the safety and efficacy of ultrasound-guided ESPB for perioperative analgesia in PCSS.

STUDY DESIGN

Prospective, randomized controlled, double-blinded study.

PATIENT SAMPLE

Eighty-six patients requiring sub-axial PCSS with or without instrumentation were randomized into two groups, those who underwent ESPB with multimodal analgesia (case) and those with only multimodal analgesia (control).

OUTCOME MEASURES

Demographic and surgical data (blood loss, duration of surgery, perioperative total opioid consumption, muscle relaxants used) were assessed. Postoperatively, the surgical site pain, alertness scale, satisfaction score, time to mobilization and complications were recorded.

METHODS

After anesthesia and prone position, case patients received ultrasound-guided ESPB at the T1 level using 15 ml of 0.25% bupivacaine and 8 mg Dexamethasone bilaterally while the control patients received only standard postoperative multimodal analgesia.

RESULTS

There were 43 patients in each group; the two groups were identical in demographic and surgical profile. The intraoperative opioid consumption (119.53±40.35 vs. 308.6±189.78; p<.001) in mcg), muscle relaxant usage (50.00±0.00 mg vs. 59.53±3.75 mg, p<.001), surgical duration (124.77±26.63/ 156.74±37.01 min; p<.01) and intraoperative blood loss (310.47±130.73 ml vs. 429.77±148.50 ml; p<.05) were significantly less in the ESPB group. In the postoperative period, the control group's pain score was significantly higher (p<.001). The Modified Observer Alertness/Sedation Score (MOASS) score and satisfaction scores also showed significant differences between the case and control groups (p<.001). The mean time required to ambulate (sitting/walking) was statistically less in cases (15.81±6.15/20.72±4.02 h) when compared to controls (16.86±6.18/ 23.05±8.88 h; p<.001).

CONCLUSION

In patients undergoing PCSS, ESPB is a safe and effective technique with better outcomes than standard multimodal analgesia alone, in terms of reduced intraoperative opioid requirements and blood loss, better postoperative analgesia and early mobilization.

Regional analgesia techniques for video-assisted thoracic surgery: a frequentist network meta-analysis

BACKGROUND

Various regional analgesia techniques are used to reduce postoperative pain in patients undergoing video-assisted thoracic surgery (VATS). This study aimed to determine the relative efficacy of regional analgesic interventions for VATS using a network meta-analysis (NMA).

METHODS

We searched the Medline, EMBASE, Cochrane Controlled Trial Register, Web of Science, and Google Scholar databases to identify all randomized controlled trials (RCTs) that compared the analgesic effects of the following interventions: control, thoracic paravertebral block (TPVB), erector spinae plane block (ESPB), serratus plane block (SPB), and intercostal nerve block (INB). The primary outcome was opioid consumption during the first 24-h postoperative period. Pain scores were also collected during three different postoperative periods: the early (0-6 h), middle (6-18 h), and late (18-24 h) periods.

RESULTS

A total of 21 RCTs (1391 patients) were included. TPVB showed the greatest effect on opioid consumption compared with the control (mean difference [MD] = -13.2 mg; 95% CI [-16.2, -10.1]). In terms of pain scores in the early period, ESPB had the greatest effect compared to control (MD = -1.6; 95% CI [-2.3, -0.9]). In the middle and late periods, pain scores showed that TPVB, ESPB and INB had superior analgesic effects compared to controls, while SPB did not.

CONCLUSIONS

TPVB had the best analgesic efficacy following VATS, though the analgesic efficacy of ESPBs was comparable. However, further studies are needed to determine the optimal regional analgesia technique to improve postoperative pain control following VATS.

Erector spinae plane block vs interscalene brachial plexus block for postoperative analgesia management in patients who underwent shoulder arthroscopy

Background

Interscalene brachial plexus block (ISB) is the gold standard method used for postoperative analgesia after arthroscopic shoulder surgery. Ultrasound guided erector spinae plane block (ESPB) is an interfascial plane block. The aim of this study is to compare the analgesic efficacy of ESPB and ISB after shoulder arthroscopy. The primary outcome is the comparison of the perioperative and postoperative opioid consumptions.

Methods

Sixty patients with ASA score I-II planned for arthroscopic shoulder surgery were included in the study. ESPB was planned in Group ESPB (n = 30), and ISB was planned in Group ISB (n = 30). Intravenous fentanyl patient-controlled analgesia was administered to both groups in the postoperative period. Intraoperative and postoperative opioid and analgesic consumption of both groups, side effects and complications related to opioid use, postoperative pain scores and rescue analgesic use were recorded in the first 48 h postoperatively.

Results

Pain scores were significantly higher in the ESPB group in the first 4 h postoperatively than in the ISB group (p < 0.05). The total fentanyl consumption and number of patients using rescue analgesics in the postoperative period were significantly higher in the ESPB group (p < 0.05). The incidence of nausea in the postoperative period was significantly higher in the ESPB group (p < 0.05).

Conclusions

In our study, it was seen that ISB provided more effective analgesia management compared to ESPB in patients underwent shoulder arthroscopy surgery.

Unilateral erector spinae plane block versus intravenous morphine for postoperative analgesia after Percutaneous nephrolithotomy. A randomized controlled trial

Pain is an everyday challenge during all surgeries and it is a chief postoperative complication, so pain management is a corner stone in anesthetic practice. Percutaneous nephrolithotomy PCNL surgeries are usually associated with acute postoperative pain. Ultrasound guided nerve block is considered a recent technique for pain management. it provides better visualization of the nerves and reduces the risk for complications e.g. unintended injury to adjacent structures. Erector spinae plane (ESP) block is a novel method of delivering postoperative analgesia after PCNL surgery, technique involves injecting local anaesthetic into the interfascial plane between the erector spinae muscle and the transverse processes.and is therefore devoid of major adverse effects like pneumothorax, spinal cord trauma, and hypotension that can occur with other types of blocks like thoracic paravertebral block (TPVB). The goal of this research was to determine the analgesic efficacy and safety of ultrasound-guided ESP. block done at T8 transverse process level in patients undergoing PCNL surgeries for intraoperative and postoperative analgesia.

Erector Spinae Plane Block for Children Undergoing Cardiac Surgeries via Sternotomy: A Randomized Controlled Trial

Background

Ineffective management of postoperative pain following pediatric cardiac surgeries adversely affects a patient’s postoperative course. The erector spinae plane (ESP) block has been described in the literature regarding perioperative pain management. We hypothesized that bilateral ESP blocks in pediatric patients would decrease intraoperative fentanyl consumption, reduce the need for postoperative morphine consumption, and improve pain scores.

Objectives

The aim of this double-blinded randomized controlled trial was to assess the efficacy and safety of bilateral ESP blocks in pediatric patients undergoing cardiac surgeries through a median sternotomy.

Methods

The study involved 98 children aged 6 months to 7 years who were American Society of Anesthesiologists (ASA) II and III and scheduled for cardiac surgery through a median sternotomy. Patients were divided randomly into 2 groups: the ES group (n = 50) who received bilateral ultrasound-guided ESP blocks, and the N group (n = 48) who received no block. The primary outcome was the total dose of administered fentanyl intraoperatively. Secondary outcomes included morphine consumption in the first 24 hours postoperatively; the length of time before the first need for postoperative analgesia; and FLACC (face, legs, activity, consolability, and cry) scores at the first and second hours postoperatively and every 4 hours, with readings taken for a period of 24 hours.

Results

There were statistically significantly higher levels of administered fentanyl intraoperatively (6.7 ± 3 vs 4.3 ± 1.9 µg.kg^-1) and postoperative morphine consumption (0.5 ± 0.2 vs 0.4 ± 0.2 mg.kg^-1) in the N group compared with the ES group (P < 0.001). Moreover, the timing of the first rescue analgesia was significantly delayed in the ES group compared with the N group (231.6 ± 104.5 vs 108.8 ± 47.8 minutes).

Conclusions

Bilateral ultrasound-guided ESP blocks can be used to reduce perioperative opioid consumption in pediatric patients undergoing cardiac surgery through a sternotomy. It also can be used to decrease postoperative pain scores.

Effect of Ultrasound-Guided Erector Spinae Plane Block on Postoperative Pain and Intraoperative Opioid Consumption in Bariatric Surgery

BACKGROUND

Bariatric surgery is often associated with moderate to severe pain. In patients with obesity, opioids have the potential to induce ventilatory impairment; thus, opioid use needs to be limited. This study aimed to compare the novel ultrasound-guided erector spinae plane block (ESPB) technique with controls in terms of intraoperative opioid consumption and postoperative pain control.

METHODS

A total of 63 patients with morbid obesity who underwent laparoscopic bariatric surgery were included in this randomized study. Patients were randomly assigned to the bilateral erector spinae plane block (ESPB) group or the control group. To evaluate perioperative pain and to adjust opioid dose, analgesia nociception index (ANI) was monitored during surgery. Total opioid dose was recorded for each patient. In addition, pain was evaluated using visual analogue scale (VAS) scores for 24 h following the operation.

RESULTS

Total intraoperative remifentanil dose was significantly lower in the ESPB group when compared to controls (1356.3 ± 177.8 vs. 3273.3 ± 961.9 mcg, p < 0.001). In the ESPB group, none of the patients required additional analgesia during follow-up. In contrast, all control patients required analgesia. ESPB group had significantly lower VAS scores at all postoperative time points (p < 0.001 for all).

CONCLUSION

Bilateral ultrasound-guided ESPB appears to be a simple and effective technique to improve perioperative pain control and reduce intraoperative opioid need in patients with morbid obesity undergoing bariatric surgery.

Retrospective Case Series Comparing the Efficacy of Thoracic Epidural With Continuous Paravertebral and Erector Spinae Plane Blocks for Postoperative Analgesia After Thoracic Surgery

Perioperative pain management for thoracic surgery plays a vital role in recovery and improved outcomes. In this retrospective study we compare three different regional anesthesia techniques utilized at one institute to provide postoperative analgesia for thoracic surgery. Continuous thoracic epidural analgesia (TEA), thoracic paravertebral block (PVB) and erector spinae plane (ESP) block are compared for postoperative pain management, opioid requirements, postoperative nausea and vomiting (PONV), respiratory events and length of stay. In this study, pairwise comparisons were also performed among the regional techniques with respect to mentioned outcomes.

Evaluation of ultrasound-guided bilateral low thoracic erector spinae plane block for postoperative analgesia in cesarean delivery patients: a prospective, randomized, controlled clinical trial

BACKGROUND

Erector spinae plane block (ESPB) is a recently described block. In many reports, ESPB has been reported to provide effective postoperative analgesia in patients undergoing cesarean delivery (CD). Herein, we compared the effectiveness of ESPB and control group in postoperative analgesia in patients undergoing CD under spinal anesthesia.

METHODS

This assessor blinded, prospective, randomized, efficiency study was conducted in the postoperative recovery room and ward at a tertiary university hospital. Eighty-six patients (ASA II-III) were recruited. Following exclusion, 80 patients were randomized into two equal groups (block and control group). Standard multimodal analgesia was performed in the control group while ESPB block was performed in the intervention (ESPB) group. Opioid consumption was measured and pain intensity between groups was compared using Numeric Rating Scores (NRS).

RESULTS

NRS was lower in Group ESPB at 3rd and 6th hours. There was no difference between NRS scores at other hours. Opioid consumption was lower in Group ESPB.

CONCLUSION

When added to multimodal analgesia, bilateral ultrasound guided low thoracic ESPB leads to improve the quality of analgesia in the first 24 hours in patients undergoing CD.

The effect of erector spinae plane block on postoperative analgesia and respiratory function in patients undergoing laparoscopic cholecystectomy: A double-blind randomized controlled trial

STUDY OBJECTIVE

Laparoscopic cholecystectomy (LC) causes moderate-to-severe postoperative pain. Postoperative pain is one of the leading contributors to respiratory dysfunction following surgery. This study investigated the effect of erector spinae plane (ESP) block on postoperative analgesia and respiratory function in patients undergoing LC.

DESIGN

Prospective, randomized, controlled trial.

SETTING

University of Health Science.

PATIENTS

Sixty-eight adult patients undergoing LC.

INTERVENTIONS

Both groups received a standardized analgesia protocol. Patients assigned to the ESP block group received an additional bilateral ESP block.

MEASUREMENTS

The primary outcome was assessed as postoperative pain intensity associated with a lower opioid requirement and significant respiratory function improvement.

MAIN RESULTS

Numerical rating scale (NRS) scores both at rest and during coughing were significantly lower in the ESP block group than in the control group at all time intervals (p < 0.001 in each) except for hour 2 postoperatively (p = 0.06 and p = 0.13, respectively). Tramadol consumption at 2 h and 24 h postoperatively was significantly lower in the ESP block group than in the controls (p < 0.001 for each). There was significant preservation in forced expiratory volume in the first second (FEV₁) and forced vital capacity (FVC) in the ESP group in comparison to the control group at 2 and 24 h after surgery (p < 0.05 in each). FEV₁/FVC and peak expiratory flow rate (PEFR) values were similar in each time interval.

CONCLUSIONS

Bilateral ESP blocks provides adequate analgesia, allowing for a lower opioid requirement and significant respiratory function improvement after LC; therefore, we concluded that ESP block could be added to the multimodal analgesia protocol in LC.

Ultrasound-Guided Midpoint Transverse Process to Pleura Nerve Block for Medical Thoracoscopy: A Case Report

We performed the midpoint transverse process to pleura (MTP) block in a patient with a recurrent pleural effusion requiring medical thoracoscopy, drainage of pleural effusion, talc poudrage, and placement of tunneled pleural catheter under sedation while in the left lateral decubitus position. Forty milliliters of a combination of bupivacaine hydrochloride and lidocaine, with dexamethasone and clonidine as adjuvants, was injected at the T6 level under ultrasound guidance with satisfactory intra- and postoperative analgesia.

Cervical erector spinae plane block as a perioperative analgesia method for shoulder arthroscopy: a case series

Shoulder arthroscopy, a common intervention for severe rotator cuff injuries, is associated with severe postoperative pain. Upon performing cervical erector spinae plane (ESP) blocks at the C7 TP (tip or posterior tip) or the posterior tip of the C6 TP posterior tubercle in six patients undergoing shoulder arthroscopy, sensory block was detectable in congruent cervico-thoracic dermatomes. Effective intraoperative and postoperative analgesia were consistently obtained for all six patients. This preliminary study illustrated that the cervical ESP block can be considered a potential simple regional anesthesia method for providing analgesia during shoulder arthroscopy with low risks of diaphragmatic paresis, upper extremity motor paresis, nerve injury and persistent hypotension.

Lumbar erector spinae plane block: an anatomical and dye distribution evaluation of two ultrasound-guided approaches in canine cadavers

OBJECTIVE

To examine the anatomy of the lumbar epaxial region and to describe two different ultrasound-guided approaches for the lumbar erector spinae plane (ESP) block in dogs.

STUDY DESIGN

An anatomical and experimental cadaver study.

ANIMALS

A group of 19 canine cadavers.

METHODS

The anatomy was described following dissection of two cadavers. Bilateral ultrasound-guided ESP injections with 0.4 mL kg^-1 of contrast dye were performed in 17 adult Beagle cadavers using either transversal (TVS) or parasagittal (PST) approaches. Computed tomography was performed to measure the total length of the contrast dye column and the epidural, intravascular, hypaxial and intra-abdominal migration. Dissections were performed to assess the spread of the contrast dye and to determine the degree of staining of the dorsal branches of the spinal nerves (DBSN). Mann-Whitney U and chi-square tests were used to compare data between groups.

RESULTS

Using both techniques, the contrast dye was observed within the ESP compartment. There was no difference in the total length of the contrast dye column between TVS and PST approaches (p = 0.056). Using the TVS approach, multisegmental staining of the DBSN was visible with 100% (17/17) of injections, while complete staining of the DBSN was achieved at 94% of the injection sites. Using the PST approach, these values were 29% (5/17) and 23% (4/17), respectively. The TVS approach stained more DBSN than the PST approach (p = 0.001), with a median (range) of 2 (2-3) versus 0 (0-3) DBSN, respectively. Using the TVS approach, epidural and intravascular migration were present in 2/17 (p = 0.485) and 3/17 (p = 0.227) injections, respectively.

CONCLUSIONS AND CLINICAL RELEVANCE

Both ultrasound-guided approaches resulted in a spread of the contrast dye within the ESP compartment. Although there were no differences in the total length of the contrast dye column, the TVS approach was superior to the PST approach in staining DBSN.

A Randomized Trial to Compare Serratus Anterior Plane Block and Erector Spinae Plane Block for Pain Management Following Thoracoscopic Surgery

Objective

Comparison of ultrasound (US)-guided erector spinae plane block (ESPB) and serratus anterior plane block (SAPB) in video-assisted thoracic surgery (VATS) patients. The primary outcome was to compare perioperative and postoperative (48 hours) opioid consumption.

Methods

A total of 60 patients were randomized into two groups (N = 30): an ESPB group and an SAPB group. All the patients received intravenous patient-controlled postoperative analgesia and ibuprofen 400 mg intravenously every eight hours. Visual analog scale (VAS) scores, opioid consumption, and adverse events were recorded.

Results

Intraoperative and postoperative opioid consumption at 0–8, 8–16, and 16–24 hours and rescue analgesic use were significantly lower in the ESPB group (P &lt; 0.05). Static/dynamic VAS scores were significantly lower in the ESPB group (P &lt; 0.05). There was no significant difference between static VAS scores at the fourth hour. There were no differences between adverse effects. Block procedure time and one-time puncture success were similar between groups (P  &gt; 0.05 each).

Conclusion

US-guided ESPB may provide better pain control than SAPB after VATS.

Question

Even though there are studies about analgesia management after VATS, clinicians want to perform the technique that is both less invasive and more effective.

Findings

This randomized trial showed that US-guided ESPB provides effective analgesia compared with SAPB.

Meaning

Performing single-injection ESPB reduces VAS scores and opioid consumption compared with SAPB.