Erector Spinae Plane Block Research Articles

Impact of regional anesthesia on left and right ventricular performance after off-pump coronary artery bypass grafting: randomized controlled study

Introduction. New anesthesia techniques require evidence of the safety of their implementation, however there is still the opinion about negative impact of regional anesthesia on heart performance and central hemodynamics. The objective of our study was to evaluate effect of regional anesthesia on systolic and diastolic myocardial function in off-pump coronary artery bypass grafting (OPCAB).Materials and methods. A prospective randomized controlled trial included 45 patients who underwent elective OPCAB, equally divided into 3 groups – general anesthesia in combination with epidural anesthesia (GA+EA), general anesthesia with erector spinae plane block (GA+ESPB) and general anesthesia without regional anesthesia (GA). The systolic function of the left (LV) and right ventricle (RV), as well as the diastolic function of the LV were evaluated during five stages perioperatively, using echocardiography and thermodilution via Swan-Ganz catheter.Results. There were no intergroup differences in parameters of LV or RV systolic function and LV diastolic function during study stages. Perioperatively, there was a decrease in LV end-diastolic volume in the groups of OA+ESPB (p = 0.001) and OA (p = 0.003).At the end of the first postoperative day (POD), pulmonary artery wedge pressure decreased in the groups of OA+EA (p = 0.003) and OA+ESPB (p = 0.008); meanwhile, ejection time (p = 0.003) and velocity-time integral (p = 0.005) from RV reduced only in the OA+ESPB group. In the OA+EA group at the end of POD1, the reservoir strain of left atrium (p = 0.022) and isovolumic relaxation time (p = 0.006) decreased.Conclusion. In OPCAB, epidural anesthesia and ESPB do not result in deterioration of LV systolic and diastolic function and do not have a negative impact on the RV.

Esketamine vs. placebo combined with erector spinae plane block vs. intercostal nerve block on quality of recovery following thoracoscopic lung resection: A randomized controlled factorial trial.

Multimodal analgesic strategy is pivotal for enhanced recovery after surgery. The objective of this trial was to assess the effect of subanesthetic esketamine vs. placebo combined with erector spinae plane block (ESPB) vs. intercostal nerve block (ICNB) on postoperative recovery following thoracoscopic lung resection. This randomized, controlled, 2×2 factorial trial was conducted at a university hospital in Suzhou, China. One hundred adult patients undergoing thoracoscopic lung surgery were randomized to one of four groups (esketamine-ESPB, esketamine-ICNB, placebo-ESPB, and placebo-ICNB) to receive i.v. esketamine 0.3mg/kg or normal saline placebo combined with ESPB or ICNB using 0.375% ropivacaine 20mL. All patients received flurbiprofen axetil and patient-controlled fentanyl. The primary outcome was quality of recovery (QoR) at 24 h postoperatively, assessed using the QoR-15 scale, with a minimal clinically important difference of 6.0. The median age was 57 years and 52% were female. No significant interaction effect was found between esketamine and regional blocks on QoR (P=0.215). The QoR-15 score at 24 h was 111.5±5.8 in the esketamine group vs. 105.4±4.5 in the placebo group (difference=6.1, 95% CI, 4.0-8.1; P<0.001); 109.7±6.2 in the ESPB group vs. 107.2±5.6 in the ICNB group (difference=2.5, 95% CI, 0.2-4.9; P=0.033; not statistically significant after Bonferroni correction). Additionally, esketamine resulted in higher QoR-15 scores at 48 h (difference=4.6) and hospital discharge (difference=1.6), while ESPB led to a higher QoR-15 score at 48 h (difference=3.0). For patients undergoing thoracoscopic lung resection, subanesthetic esketamine improved QoR after surgery, while ICNB can be used interchangeably with ESPB as a component of multimodal analgesia.

Comparison of the Efficacy Between Ultrasound-Guided Paravertebral Block and Erector Spinae Block for Postoperative Analgesia in Percutaneous Nephrolithotomy Using Levobupivacaine: A Prospective and Randomized Study.

Introduction Various techniques have been developed in the current era of regional anesthesia practice. With the advent of ultrasound, the visualization of needle and pleura in real time enables a better outcome with negligible adverse events. This study was designed to compare the efficacy between ultrasound-guided erector spinae plane block (ESPB) and paravertebral block (PVB) in percutaneous nephrolithotomy (PCNL) for the duration of postoperative analgesia with levobupivacaine, a local anesthetic with higher lipid solubility, making it more potent and resulting in a longer duration of action. Methods This prospective randomized single-blinded study enrolled 50 patients of ASA grades I and II, aged between 20 and 60 years, who were scheduled for PCNL under general anesthesia. Patients were divided into two groups of 25 each: group ESPB andgroup PVB, and 25 mL of 0.25% levobupivacaine was administered to both groups. They were primarily evaluated for the duration of postoperative analgesia. Total rescue analgesic requirements, hemodynamic parameters, and any adverse effects were also assessed. Results Both ESPB and PVB provided a significant duration of analgesia postoperatively. Demographic characteristics in both groups were comparable. The duration of postoperative analgesia in group ESPB was 746 ± 58.6 minutes when compared to group PVB, which is 768 ± 68.6 minutes (p = 0.08). Intravenous (IV) paracetamol was used as a rescue analgesic. The doses used were also comparable in both groups, with the visual analog score (VAS) being high after around 12 hours of surgery. The total rescue analgesic requirement was similar in both groups (group ESPB, 2.0 ± 1.6; group PVB, 2.2 ± 1.4; p = 0.51). There were no significant hemodynamic or other adverse effects in either group. Conclusion We conclude that both ESPBand PVB using isobariclevobupivacaine 0.25% as a local anesthetic are equally efficacious in providing effective postoperative analgesia in patients undergoing PCNL under generalanesthesia.

Ultrasound-Guided Erector Spinae Plane Block: A Case Series Demonstrating Utility for Acutely Painful Conditions in the Emergency Setting

Ultrasound-Guided Erector Spinae Plane Block: A Case Series Demonstrating Utility for Acutely Painful Conditions in the Emergency Setting

A short comment on: “Analgesic efficacy of erector spinae plane block in patients undergoing major gynecologic surgery: a randomized controlled study” Feng-Ting Ma*

A short comment on: “Analgesic efficacy of erector spinae plane block in patients undergoing major gynecologic surgery: a randomized controlled study” Feng-Ting Ma*

Comparison of Continuous Thoracic Epidural Analgesia Versus Bilateral Erector Spinae Plane Block for Pain Management in Coronary Bypass Surgery.

Background Effective pain control is vital for patients undergoing heart surgery. Utilizing a multimodal approach to analgesia is essential, as poor pain management can result in hemodynamic and systemic complications. This study aimed to compare perioperative pain management techniques in patients undergoing coronary artery bypass grafting (CABG), specifically evaluating continuous thoracic epidural analgesia and ultrasound-guided bilateral erector spinae block. Methods This randomized comparative study was conducted at a tertiary care centreover a period of six months, with approval from the institute's ethics committee. A total of 24 patients undergoing CABG under general anesthesia participated in the study. They were randomly assigned to either the continuous thoracic epidural analgesia (TEA) group (Group A) or the ultrasound-guided bilateral erector spinae plane (ESP) block group (Group B) using a simple randomization method. The study assessed intraoperative intravenous opioid requirements for maintaining stable hemodynamics, as well as postoperative resting and coughing Visual Analog Scale (VAS) scores and peak inspiratory spirometry. Results Twelve patients from each group completed the study, with comparable demographics (age, gender). Both groups exhibited similar resting and coughing VAS scores at 0, 3, 6, and 12 hours postoperatively (p > 0.05). However, at 24, 36, and 48 hours, Group A had significantly higher VAS scores compared to Group B (p < 0.05). Group A maintained an overall mean VAS score of 4 or less during rest and coughing. Peak inspiratory spirometry results were consistent between both groups (p > 0.05). Conclusion The ultrasound-guided bilateral erector spinae block provided pain control comparable to thoracic epidural analgesia, making it a viable alternative for perioperative pain management. This is particularly beneficial for CABG patients where early postoperative anticoagulant therapy is crucial for graft patency. Effective pain management also contributes to faster recovery in coronary artery bypass grafting.

Comparison of efficacy of ultrasound-guided erector spinae plane block versus thoracolumbar interfascial plane block in patients undergoing lumbar spine surgeries: A systematic review and trial sequential meta-analysis.

Existing literature does not establish the superiority of the erector spinae plane (ESP) block or the thoracolumbar interfascial plane (TLIP) block in pain relief and reducing opioid consumption in lumbar spine surgeries. This systematic review and meta-analysis was aimed to discern their relative efficacy and safety. This meta-analysis included randomised controlled trials (RCTs) comparing ESP and TLIP blocks in lumbar spine surgeries. The primary outcome was 24-h opioid consumption, and secondary outcomes were visual analogue scale (VAS) scores at 1 h and 24 h and various complications. PubMed, Central Register of Controlled Trials, SCOPUS, EMBASE databases and cross-references were electronically searched. Two authors extracted data independently, cross-checked, and analysed them using RevMan 5.4. Binary outcomes were reported as odds ratios (OR), while continuous outcomes were presented as standardised mean differences (SMDs) accompanied by 95% confidence intervals (95% CIs). Among 1107 articles, six RCTs (492 patients) were finally included. The ESP block demonstrated lower 24-h opioid consumption compared to TLIP [SMD -0.32 (95% CI: -0.50, -0.14); P < 0.001, I 2 = 83%]. At 1 and 24 h, ESPB yielded significantly lower VAS scores compared to TLIP [1 h: SMD -0.38 (95% CI: -0.57, -0.18); P < 0.001, I 2 = 83%; 24 h: SMD -0.57 (95% CI: -0.76, -0.37); P < 0.001, I 2 = 73%]. No significant difference was noted in adverse events. In comparison to the TLIP block, the ESP block has significantly lower 24-h opioid consumption and VAS scores at 1 and 24 h in patients undergoing lumbar spine surgery.

A Comparison of the Effectiveness of the Serratus Anterior Plane Block and Erector Spinae Plane Block to that of the Paravertebral Block in the Surgical Treatment of Breast Cancer-A Randomized, Prospective, Single-Blinded Study.

Background/Objectives: The paravertebral block (PVB) is a well-studied, effective method of analgesia for breast surgery. Alternative techniques involving the blockage of intercostal nerve branches are the serratus anterior plane block (SAPB) and the erector spinae plane block (ESPB). However, no studies comparing both fascial blocks to PVB in breast surgery have been published to date. We evaluated the effectiveness of ESPB and SAPB vs. PVB, expressed as the requirement for intraoperative fentanyl, pain intensity at rest and during coughing, and morphine consumption on the first postoperative day. Additional aims were to perform an evaluation of the safety of the block types used. Materials and Methods: A total of 77 women and 1 man with stage I and II clinical breast cancer, aged 18-85 years, were randomized into one of three study groups: SAPB, PVB, and ESPB. Results: There were no statistically significant differences in fentanyl consumption during surgery with respect to the type of block used (p = 0.4246). Morphine consumption in the postoperative period was highest in the ESPB group, averaging 9.4 mg. There was a statistically significant difference in pain intensity from 4 pm on the day of surgery to 8 am the following morning. No complications related to the blocks were observed on the first postoperative day. Conclusions: Both the serratus anterior plane block and the erector spinae plane block were as effective as the paravertebral block in achieving intraoperative analgesia. The serratus anterior plane block was equally as effective as the paravertebral block in achieving postoperative analgesia. The erector spinae plane block was significantly less effective in achieving postoperative analgesia than both the paravertebral block and serratus anterior plane block.

Comment on 'Postoperative analgesic efficacy of ultrasound-guided, low-volume C5-6 root block in combination with erector spinae plane block in complex shoulder surgeries'.

Comment on 'Postoperative analgesic efficacy of ultrasound-guided, low-volume C5-6 root block in combination with erector spinae plane block in complex shoulder surgeries'.

A comparative evaluation of ultrasound guided dual transversus abdominis plane block versus erector spinae plane block for postoperative analgesia in patients undergoing laparoscopic cholecystectomy: A randomised prospective study

: Effective pain control after laparoscopic cholecystectomy (LC) is crucial for early patient mobilization, facilitating a speedy recovery and avoiding several complications. Ultrasound (USG) guided bilateral dual transversus abdominis plane block (DTAPB) and erector spinae plane block (ESPB) are effective for providing postoperative pain relief after LC.A prospective randomised, study comprising of 100 patients posted for elective LC. To compare the effectiveness of USG-guided DTAPB and ESPB for providing postoperative pain relief in patients undergoing LC. A total of 100 patients aged 18-70 years, were included in the study and divided into two groups of 50 patients each. Group DTAPB received bilateral DTAPB and group ESPB received bilateral ESPB, using 50 ml of 0.25% ropivacaine with 8 mgs of dexamethasone. Post operative visual analogue score (VAS) score, time to first analgesia request, total number of analgesic doses required in 24 hours (hrs) and complications if any were noted. VAS score was higher in DTAPB group than ESPB group at 1,2,6,8 and 14 hrs. In DTAPB group patients requested analgesia after an average of 8 ±2.0 hrs, whereas in ESPB group they requested after 12 ± 3.16 hrs. In ESPB group 45 patients needed single analgesic dose and only 5 needed second analgesic doses. However, in DTAPB group 35 patients received single and 15 patients received second analgesic dose. Side effects were comparable in both the groups.USG-guided bilateral ESPB with 50 ml of 0.25% ropivacaine plus dexamethasone is an effective approach in reducing postoperative pain following LC.

Combined paravertebral and erector spinae plane block in non-intubated video-assisted thoracoscopic wedge resection: a case report

Thoracic surgery is often performed under general anesthesia, with intubation required. Less invasive surgical and anesthesiology approaches, such as a combination of video-assisted thoracic surgery (VATS) and regional nerve blocks, have been utilized to facilitate early recovery. In this case report, a patient undergoing VATS will be presented using thoracic paravertebral block (TPVB) and erector spinae plane blocks (ESPB) as the primary anesthesia approach. A twenty-eight-year-old male patient with no known comorbidity had been evaluated for VATS to undergo wedge resection of the right middle lobe due to non-resolving repeated pneumothorax. As the patient had bullous lung presence at the contralateral side as well, invasive ventilation was deemed risky, and, as an alternative approach, real-time ultrasound-guide TPV and ESPB block were performed with intravenous midazolam 2 mg and fentanyl 50 mcg utilized to prevent anxiety and pain control. A total of 20 ml bupivacaine and 10 mL 2% lidocaine were used for nerve blocks and for maintenance of sedation; 2 mg midazolam, 50 mg ketamine, 50 mcg fentanyl, and 150 mg propofol were used within 90 minutes of operation. After VATS, the patient was admitted to the surgical intensive care unit, and no complication was observed post-operatively, with a successful transfer to the ward afterward. Maintenance of an unproblematic perioperative period is as paramount as the surgery itself. A combination of protocols, with the limitation of post-operative opioid usage by sedation and less invasive surgical methods, such as non-intubated VATS being presented in this case report, allows an earlier recovery period and less complication by preserving lung function. TPV and ESPB, in this case, granted exclusion of intubation, less invasive to thoracic epidural anesthesia, and control of possible complications due to an already bullous lung.

Ultrasound-guided subcostal transversus abdominis plane block versus erector spinae plane block for post-operative pain after percutaneous nephrolithotomy: A comparative observational study

In India, about 12% of the population has kidney stones, and out of these about 50% may end up with some kidney function loss or renal damage percutaneous nephrolithotomy (PCNL) is accepted as the procedure of choice for large or complex renal stones. Significant post-operative pain can occur after PCNL in first 24 hours due to distension in the renal capsule and pelvicalyceal system. The study aim was to compare the efficacy of ultrasonography guided subcostal transversus abdominis plane block with erector spinae plane block in PCNL. This observational study included 67 consecutive cases (16-65 years, ASA grade I-II) divided into 2 groups. Group A (n=33) received subcostal transversus abdominis plane (SCTAP) block and Group B (n=34) received erector spinae plane block (ESPB). Post operative pain in terms of pain scores, opioid consumption, requirement of rescue analgesic in first 24 hours was noted. Quality of recovery and any adverse events were also noted. Post-operative opioid consumption was significantly less in ESPB group (34.41 ± 27.32 mcg), compared to SCTAP Group (270.91 ± 121.41 mcg). Group B patients had better post operative quality of recovery compared to Group A patients. VAS pain scores at almost all time-points were lower in the ESPB group. ESPB provided effective postoperative analgesia and reduced fentanyl consumption postoperatively compared to SCTAP block.

Application of Erector Spinae Plane Block in Spine Surgery:A Review

Spine surgery may lead to moderate to severe pain.Poorly controlled postoperative pain seriously affects the prognosis and recovery of patients.The erector spinae plane block (ESPB),firstly proposed in 2016 as a novel interfascial plane block,has been widely used in the management of intraoperative and postoperative pain in spine surgery.It has been confirmed as a safe,simple,and effective block.This review describes the anatomic basis,mechanism,and methods of ESPB,summarizes the clinical application of ESPB in spine surgery,and makes an outlook on the potential role of ESPB as a part in the multimodal management of postoperative pain in spine surgery.

Reply to Editorial Comment: Erector Spinae Plane Block Reduces Postoperative Pain and Narcotic Utilization Compared With Transversus Abdominis Plane Block After Cystectomy With Urinary Diversion

Reply to Editorial Comment: Erector Spinae Plane Block Reduces Postoperative Pain and Narcotic Utilization Compared With Transversus Abdominis Plane Block After Cystectomy With Urinary Diversion

Editorial Comment: Erector Spinae Plane Block Reduces Postoperative Pain and Narcotic Utilization Compared With Transversus Abdominis Plane Block After Cystectomy With Urinary Diversion

Editorial Comment: Erector Spinae Plane Block Reduces Postoperative Pain and Narcotic Utilization Compared With Transversus Abdominis Plane Block After Cystectomy With Urinary Diversion

The erector spinae plane block vs. usual care for treatment of mechanical back pain in the emergency department: a pilot study.

The ultrasound-guided erector spinae plane block (ESPB), traditionally utilized for thoracic regional pain control, has been reported as an effective analgesic option for mechanical back pain, renal colic, and rib fractures in the emergency department (ED). This pilot study aims to compare the effectiveness of the ESPB to usual analgesic treatment for patients presenting to the ED with mechanical back pain. A prospective, single-blind randomized controlled trial was conducted at a Canadian community hospital from March 2020 to December 2022. Adult patients presenting to the ED with mechanical back pain of at least 7 out of 10 on the Numeric Pain Rating Scale (NPRS) were randomized to receive either the ESPB or usual care. The primary outcome was the difference in NPRS score reduction at ED discharge. Secondary outcomes included ED length of stay, ED opiate use, follow-up NPRS and Brief Pain Inventory (BPI) scores, back pain-related return ED visits, and ongoing opiate use. A total of 30 patients were enrolled, with 19 randomized to the ESPB cohort and 11 to the usual care cohort. The mean NPRS reduction at ED discharge was significantly higher in the ESPB group compared to the usual care group (5.4 vs. 2.2), with a difference of 3.2 (95% confidence interval 1.4-5.1). ED opiate use was lower in the ESPB group. The ESPB also resulted in a significant reduction in ED length of stay (160min vs. 235min). There were no reported adverse effects related to the research interventions. This pilot study suggests that the ESPB may be an effective opioid-sparing analgesic option for patients presenting to the ED with mechanical back pain. NCT05982483.

A comparative study of respiratory effects of erector spinae plane block versus paravertebral plane block for women undergoing modified radical mastectomy

BackgroundInadequate acute postoperative pain control after modified radical mastectomy (MRM) can compromise pulmonary function. This work aimed to assess the postoperative pulmonary effects of a single-shot thoracic paravertebral block (TPVB) and erector spinae plane block (ESPB) in female patients undergoing MRM.MethodsThis prospective, randomized comparative trial was conducted on 40 female American Society of Anesthesiologists (ASA) II-III, aged 18 to 50 years undergoing MRM under general anesthesia (GA). Patients were divided into two equal groups (20 in each group): Group I received ESPB and Group II received TPVB. Each group received a single shot with 20 ml volume of 0.5% bupivacaine.ResultsRespiratory function tests showed a comparable decrease in forced vital capacity (FVC) and forced expiratory volume (FEV1) from the baseline in the two groups. Group I had a lower FEV1/FVC ratio than Group II after 6 h. Both groups were comparable regarding duration for the first postoperative analgesic request (P value = 0.088), comparable postoperative analgesic consumption (P value = 0.855), and stable hemodynamics with no reported side effects.ConclusionBoth ultrasound guided ESPB and TPVB appeared to be effective in preserving pulmonary function during the first 24 h after MRM. This is thought to be due to their pain-relieving effects, as evidenced by decreased postoperative analgesic consumption and prolonged time to postoperative analgesic request in both groups.ClinicalTrials.gov IDNCT03614091 registration date on 13/7/2018.

Comparison of the postoperative effects of the erector spinae plane block and local infiltration analgesia in patients operated with lumbotomy surgery incision: Randomized clinical study.

Our aim was to observe the effects of local infiltration analgesia (LIA) or erector spinae plane block (ESPB) methods, which we applied preemptively in patients who were scheduled for surgery with a lumbotomy surgical incision and on intraoperative remifentanil consumption, and to compare the postoperative numerical rating scale (NRS), morphine demand, consumption, and pain degrees. Sixty American Society of Anesthesiologists I to III patients aged 18 to 75 years who were due to be operated on with a lumbotomy surgical incision were included in the study. The present study was conducted via prospective, randomized controlled, double-blind trials. After the induction of standard anesthesia, LIA was applied to 30 patients and ESPB was applied to 30 patients preemptively. The dose of remifentanil consumed in the intraoperative period was measured, and the hemodynamic parameters were measured every 5 minutes. Morphine bolus treatment with the postoperative patient-controlled analgesia and rescue analgesia with paracetamol were planned for the patients. Postoperative morphine and additional analgesia consumption, NRS, hemodynamic parameters, and complications were recorded for 48 hours. There was no difference between the groups in terms of demographic and hemodynamic data. The mean consumption of remifentanil was measured as 455 ± 165.23 µg in the intraoperative ESPB group and 296.67 ± 110.59 µg in the LIA group, and a statistical difference was observed (P = .001). In the postoperative follow-ups, the ESPB group drug consumption and NRS score averages were significantly lower at all times (P = .01; patient-controlled analgesia-morphine, 41.93 ± 14.47 mg vs 57.23 ± 15.5 mg and additional analgesic-paracetamol: 2.1 ± 1.06 vs 4.27 ± 1.14 g). The mean duration of additional analgesic intake of the groups was 10.6 ± 8.1 in the LIA group, while it was 19.33 ± 8.87 in the ESPB group, a significant difference. The patient satisfaction questionnaire was also significantly in favor of ESPB (P = .05). In conclusion, it has been shown that the intraoperative LIA method is more effective in terms of remifentanil consumption and in controlling pain in operations performed with a flank incision, but the ESPB method provides longer and more effective pain control in postoperative follow-ups.

Effect of Bilateral Erector Spinae Plane Block versus Fentanyl Infusion on Postoperative Recovery in Cardiac Surgeries via Median Sternotomy: A Randomized Controlled Trial

ObjectivesThe effect of ultrasound-guided Erector Spinae Plane block (ESPB) on the time to extubation is unclear. This study aimed to assess the effect of ultrasound-guided bilateral ESPB on the time to extubation in patients who had cardiac surgery through midline sternotomy. DesignRandomized controlled trial. SettingCairo university hospital and national heart institute, Egypt. ParticipantsPatients aged from 18-70 years old who underwent cardiac surgery procedure through midline sternotomy. InterventionsRecruited patients were randomized to receive either preoperative single shot ultrasound guided bilateral ESPB or fentanyl infusion. MeasurementsThe primary outcome was the time to extubation. other outcomes included: total perioperative fentanyl consumption, pain score using the numerical rating score (NRS), length of ICU stay and incidence of perioperative complications. Main resultsTwo hundred and nineteen patients were available for final analysis. In the ESPB group, the mean time of extubation was significantly shorter (159.5 ± 109.5) minutes, compared to the control group (303.2 ± 95.9) minutes, mean difference (95% CI): -143.7(-171.1, -116.3) minutes, p= 0.0001. Ultrafast track (immediate postoperative) extubation was achieved in 23 (21.1%) patients in ESPB group compared to one patient (0.9%) in the control group. The ICU stay was significantly reduced in the ESPB group (47.2 2 ± 13.3) hours compared to the control group (78.9 ± 25.2) hours, p= 0.0001. There was significant reduction in NRS in ESPB group than control group for up to 24 hours postoperatively, p =0.001. ConclusionAmong adult patients undergoing cardiac surgery through medline sternotomy, the extubation time was halved in patients who received single shot bilateral erector spinae plane block compared to patients who received fentanyl infusion. Clinical trial identifierNCT05356715. Registration URLhttps://clinicaltrials.gov/study/NCT05356715

Erector spinae plane block as a rescue therapy in following cholecystectomy: a historical cohort study

Erector spinae plane block as a rescue therapy in following cholecystectomy: a historical cohort study