Continuous Erector Spinae Plane Catheter for Analgesia After Infant Thoracotomy: A Case Report

Perioperative and Anesthetic Considerations in Vascular Rings and Slings

Vascular rings represent an increasingly prevalent and diverse set of congenital malformations in which the aortic arch and its primary branches encircle and constrict the esophagus and trachea. Perioperative management varies significantly based on the type of lesion, its associated comorbidities, and the compromise of adjacent structures. Multiple review articles have been published describing the scope of vascular rings and relevant concerns from a surgical perspective. This review seeks to discuss the perioperative implications and recommendations of such pathology from the perspective of an anesthesia provider.

Outcomes in pediatric liver transplant recipients receiving bilateral continuous erector spinae plane blocks

BACKGROUND

Regional anesthesia allows for opioid-sparing and enhanced recovery after many major surgeries. Erector spinae blockade, with reduced bleeding risk and the option for continuous infusion, offers an opportunity to promote this principle in pediatric liver transplant patients. Our goal was to evaluate pain scores, opioid use, and return of bowel function following continuous ESP blockade in pediatric liver transplant recipients.

METHODS

This retrospective cohort study included extubated patients who received a liver transplant at St. Louis Children's Hospital from July 2016 to July 2021. The control group, which did not meet the criteria for ESP blockade and received standard analgesia regimens, was compared to the group receiving continuous ESP blockade. Measured outcomes included pain scores, opioid consumption through postoperative day two, date of first bowel movement, and length of stay in the ICU and the hospital.

RESULTS

Patient demographics between control and ESP groups showed no significant differences. Pain scores between control and ESP groups also showed no significant differences. Intraoperative and postoperative opioid requirements, studied in oral morphine equivalents per kilogram (OME/kg), were significantly lower for patients with ESP blockade. Time to first bowel movement was also significantly earlier for the ESP group. No significant differences were found in length of ICU or hospital stay. There were no safety concerns or complications related to ESP blockade.

CONCLUSIONS

Use of continuous ESP blockade resulted in reduced opioid consumption through postoperative day two and earlier return of bowel function.

Can ultrasound-guided erector spinae plane block replace thoracic epidural analgesia for postoperative analgesia in pediatric patients undergoing thoracotomy? A prospective randomized controlled trial

BACKGROUND

Many analgesic modalities have been investigated in pediatrics for thoracotomy. We studied the analgesic efficacy of unilateral continuous ultrasound-guided erector spinae plane block (ESPB) compared to a thoracic epidural in pediatric patients undergoing thoracotomy.

MATERIALS AND METHODS

A prospective, randomized, observer-blinded, controlled study. Pediatric patients (2-7 years) scheduled for right or left thoracotomy under general anesthesia (GA) were enrolled in the study. We randomly assigned patients into two groups: The thoracic epidural analgesia (TEA) group received GA with an epidural catheter. The ESPB group received GA with a unilateral ultrasound-guided erector spinae plane catheter. The primary outcome was postoperative cumulative opioid consumption for 24 h.

RESULTS

The total intraoperative fentanyl requirement was 35.4 ± 11.44 μg in the TEA group and 30.4 ± 9.08 μg in the ESPB group (t-value - 1.53013, P value: 0.134). The total postoperative fentanyl requirement was comparable in both the groups and clinically nonsignificant (44 ± 2.82 in the TEA group vs. 44.25 ± 13.72 in the ESPB group, t-value = -0.02412, P = 0.981). The median (IQR) Face, Legs, Activity, Cry, and Consolability (FLACC) score at 0, 2, 4, 8, 12, and 24 h time points in the ESPB was equivalent to the TEA group. At 6 h time point, the TEA group had a significantly lower FLACC score than the ESPB group (1[1.75, 1] in the TEA group and 2 [2, 1] in the ESPB group, P value = .02, U = 117.5, z-score = -2.218). The complications were higher in the TEA group (urine retention 20% and hypotension 40%) than in the ESPB group (0 and 0%).

CONCLUSIONS

This study shows that the ESPB provides similar postoperative analgesia to the TEA in pediatric patients undergoing thoracotomy. The ESPB is simpler, faster, and has a lower complication rate.

Anesthesia for thoracic surgery in infants and children

The management of infants and children presenting for thoracic surgery poses a variety of challenges for anesthesiologists. A thorough understanding of the implications of developmental changes in cardiopulmonary anatomy and physiology, associated comorbid conditions, and the proposed surgical intervention is essential in order to provide safe and effective clinical care. This narrative review discusses the perioperative anesthetic management of pediatric patients undergoing noncardiac thoracic surgery, beginning with the preoperative assessment. The considerations for the implementation and management of one-lung ventilation (OLV) will be reviewed, and as will the anesthetic implications of different surgical procedures including bronchoscopy, mediastinoscopy, thoracotomy, and thoracoscopy. We will also discuss pediatric-specific disease processes presenting in neonates, infants, and children, with an emphasis on those with unique impact on anesthetic management.

Continuous Local Anesthetic Infusion via Chest Wall Catheter for Analgesia After Thoracic Surgery in Neonates: A Case Series

Pain management options in neonates after thoracotomy have traditionally been limited to intravenous opioids and caudal catheters. However, because of increasing familiarity with ultrasound imaging, erector spinae and paravertebral nerve blocks are being performed more frequently. For thoracic procedures, we describe a case series of 4 neonates involving ropivacaine infusion via an extrathoracic chest wall catheter placed by the surgeon. This technique requires less time, is less invasive, does not require ultrasound, and enabled us to accomplish tracheal extubation in the operating room immediately after surgery, and decreased postoperative opioid use in the neonatal intensive care unit.

Erector spinae catheter for post-thoracotomy pain control in a premature neonate

Ensuring respiratory stability with early tracheal extubation and adequate pain control is challenging in premature neonates after thoracotomy. Continuous erector spinae plane (ESP) block, a relatively new truncal nerve block, has the potential to provide analgesia for thoracic surgeries while reducing opioid use. However, there have been only a few reports utilising this technique in infants, and none in preterm neonates. We present the perioperative pain management of a preterm neonate requiring thoracotomy. Epidural analgesia was deemed contraindicated due to coexisting coagulopathy; therefore, an ESP catheter was placed. The patient was extubated at the end of the surgery and had excellent pain control with rectal acetaminophen, chloroprocaine infusion via the ESP catheter and with minimal opioid requirement. Continuous ESP block may be safe and effective for postoperative pain management in coagulopathic premature neonates. Chloroprocaine is an effective local anaesthetic in the erector spinae compartment, which has not been previously reported.

Evaluation of ultrasound-guided erector spinae plane block for postoperative management of video-assisted thoracoscopic surgery: a prospective, randomized, controlled clinical trial

Background

Video-assisted thoracoscopic surgery (VATS) is a commonly performed minimally invasive procedure that has led to lower levels of pain, as well as procedure-related mortality and morbidity. However, VATS requires analgesia that blocks both visceral and somatic nerve fibers for more effective pain control. This randomized controlled trial evaluated the effect of erector spinae plane block (ESPB) in the postoperative analgesia management of patients undergoing VATS.

Methods

We performed a prospective, randomized, single-center study between December 2018 and December 2019. Fifty-four patients were recruited to two equal groups (ESPB and control group). Following exclusion, 46 patients were included in the final analysis. Patients were randomly assigned to receive preoperative ultrasound-guided ESPB with either ropivacaine or saline. The primary outcome was the numeric rating scale (NRS) score, assessed 12 hours postoperatively. Secondary outcomes were the Riker Sedation-Agitation Scale (SAS) score for emergence agitation, postoperative cumulative opioid consumption, length of post-anesthesia care unit (PACU) stay, incidence of postoperative nausea and vomiting (PONV) and dizziness, and ESPB-related adverse events.

Results

The NRS in the ESPB group during the postoperative period immediately after PACU admission was significantly lower than that in the control group (5.96±1.68 and 7.59±1.18, respectively; P<0.001) and remained lower until 6 hours postoperatively (P=0.001 at 1 hour and P=0.005 at 6 hours). At 12 hours postoperatively, NRS scores were not significantly different between groups (P=0.12). The median [interquartile range (IQR)] of the postoperative rescue pethidine consumption in PACU was significantly lower [25 mg (25 mg)] in the ESPB group than that in the control group [50 mg (56.2 mg); P=0.006]. The median (IQR) of PACU residual time was significantly lower [25 min (10 min)] in the ESPB group than that in the control group [30 min (15 min); P=0.034]. The median (IQR) Riker SAS was also lower in the ESPB group [4 (1.0)] than that in the control group [5 (1.25); P<0.001] in PACU.

Conclusions

A single preoperative injection of ESPB with ropivacaine may improve acute postoperative analgesia and emergence agitation in patients undergoing VATS.

Early experience with erector spinae plane blocks in children

BACKGROUND

An erector spinae plane block is a relatively new regional anesthetic technique. Apart from case reports and small series, the literature regarding pediatric use is limited.

AIM

Our objective was to determine the efficacy of the erector spinae plane block in children by measuring the heart rate response to incision. Secondary objectives included feasibility, safety, opioid consumption, and pain scores. Furthermore, we reviewed this block in children published since 2016.

STUDY DESIGN

Case Series; Level of evidence, IV.

METHODS

With Institutional Review Board approval, a retrospective chart review was conducted on all patients who received erector spinae plane block for surgery between October 2017 and May 2019 at a single institution. Blocks were performed under anesthesia, using ultrasound guidance prior to surgical incision. Block details and hemodynamic and analgesic data were collected. In addition, a PubMed literature review was conducted to identify all erector spinae plane block related publications in patients ≤18 years of age.

RESULTS

About 164 patients, 2 days-19.4 years, weighing 2.3-94.7 kg, received erector spinae plane blocks. For more than 79% of single injection blocks, placement time was ≤10 minutes. Using a heart rate increase of <10% at skin incision as criterion, 70.1% of patients had a successful block. Only 20% required long-acting opioids intraoperatively. In a subset of infants who underwent gastrostomy surgery using a dose of 0.5 mL/kg, a local anesthetic spread of at least five dermatomes (0.1 mL/kg/dermatome) was achieved. Per the literature review, 33 publications described erector spinae plane block in 128 children. No complications were reported.

CONCLUSION

Erector spinae plane blocks are relatively easy to perform in children with no complications reported to date. The efficacy of the block for a broad spectrum of surgeries, involving incisions from T1 to L4, is encouraging.

A Review of Regional Anesthesia in Infants

Regional anesthesia provides effective anesthesia and pain relief in infants with age-specific data attesting to safety and efficacy. Regional anesthesia decreases exposure to opioids and general anesthetic agents and associated adverse drug effects, suppresses the stress response, and provides better hemodynamic stability compared to general anesthesia. Regional anesthesia can prevent long-term behavioral responses to pain. As a result, the overall number and variety of nerve blocks being used in infants is increasing. While neuraxial blocks are the most common blocks performed in infants, the introduction of ultrasound imaging and a better safety profile has advanced the use of peripheral nerve blocks. Infant-specific pharmacokinetic and pharmacodynamic data of local anesthetic medications are reviewed including risk factors for the accumulation of high serum levels of unbound, pharmacologically active drug. Bupivacaine accumulates with continuous infusion and 2-chloroprocaine can be used as an alternative. Local anesthetic systemic toxicity has the highest incidence in infants less than 6 months of age and is associated with bolus dosing and penile nerve blocks. Local anesthetic toxicity is treated by securing the airway, suppression of seizure activity and implementation of cardiopulmonary resuscitation. Administration of intralipid (intravenous lipid emulsion) is initiated at the first sign of toxicity. A high level of expertise in regional anesthesia is needed when treating infants due to their unique development.

Early experiences with the use of continuous erector spinae plane blockade for the provision of perioperative analgesia for pediatric liver transplant recipients

OBJECTIVE

Pediatric liver transplantation presents a number of anesthetic challenges, especially in providing adequate perioperative analgesia. In an effort to reduce opioid consumption and improve functional outcomes following pediatric liver transplantation, we have instituted a novel analgesia protocol centered on the provision of continuous regional analgesia with erector spinae plane (ESP) blockade.

CASES

We describe preincisional bilateral ESP catheter placement in two pediatric patients undergoing orthotopic liver transplantation. The first case was a 12-year-old boy with maple syrup urine disease undergoing initial transplantation and the second case was an 8-year-old boy who underwent an 11 hours complex redo liver transplant in the setting of glycogen storage disease type 1A requiring initial liver transplant in 2014. The 8-year-old boy presented to the operating suite with acute Budd-Chiari syndrome with comorbid ascites and a large right pleural effusion. In both cases, ESP blockade resulted in good analgesia, markedly reduced intraoperative and postoperative opioid consumption as compared with institutional data and published rates of consumption and was associated with rapid return of bowel function.

CONCLUSIONS

These early experiences suggest a role for continuous ESP blockade to improve analgesia and potentially change the paradigm of treatment in this fragile patient population. The technique should be considered in similar interventions. Further study will be undertaken to validate our observation.

Erector spinae plane block for pediatric hip surgery -a case report

Surgical repair of the hip is considered an extremely painful procedure. Managing pain in this surgery is challenging even with several available options, each with limitations. Erector spinae plane (ESP) block is a novel technique that has been used in different types of surgery, with promising results. Herein, we describe a case of a successful ESP block for pediatric hip surgery. In the future, ESP block could be an alternative technique for providing effective analgesia.