Ropivacaine Plasma Concentrations and Pharmacokinetics Following Erector Spinae Plane Block in the Pediatric Population

Anesthesia, Local Clinical Trial

Official title:

Ropivacaine Plasma Concentrations and Pharmacokinetics Following Erector Spinae Plane Block in the Pediatric Population

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04298099
• Other study ID #: H-46638
• Status: Completed
• Phase: Phase 4
• Start date: December 18, 2020
• Est. completion date: March 29, 2021

Study information

• Verified date: May 2024
• Source: Baylor College of Medicine
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The primary aim of this study is to evaluate the pharmacokinetics of serum ropivacaine concentrations following erector spinae plane peripheral nerve blocks in the pediatric population.

Secondary outcomes will assess the efficacy of the block with perioperative morphine equivalent consumption and pain scores.

Description:

This pilot study will enroll patients at Texas Children's Hospital, aged 6 months to <18 years scheduled to undergo a clinically indicated thoracic surgery with the adjunct of an erector spinae plane block for perioperative pain. A single shot erector spinae plane block is commonly offered for unilateral video-assisted thoracoscopic surgery (VATS) and unilateral chest tube insertions. Following parental consent and child assent to the block, participants will be assigned sequentially to either ropivacaine 0.2% at 0.3ml/kg or ropivacaine 0.5% at 0.3ml/kg. This pilot study poses no additional risk to the patient and the thoracic surgical procedures outlined are those for which an erector spinae plane block would be offered. Furthermore, the block dosing of 0.3ml/kg volumes with ropivacaine 0.2% or 0.5% are not outside of the standard of care or accepted dosages for peripheral nerve blocks.

Venous sample serum ropivacaine levels will be collected prior to ESP block and at 30, 60, 90-minutes and 2, 4, 6 -hours from intravenous access in situ. A baseline alpha-1 acid glycoprotein (AGP) test will be collected and processed by TCH Pathology. Amide local anesthetics are predominantly protein bound to AGP. It is the unbound form that is active. While this study seeks to understand the pharmacokinetics of ropivacaine following a single shot erector spinae plane block, correlate of the AGP will simultaneously ascertain the free vs bound portion.

Samples will be analyzed for the total and free serum ropivacaine concentrations. Pain scores will be collected from nursing records starting from arrival in the Post-Anesthesia Care Unit every 4 hours (up to 12 hours after arrival in PACU). Pain will be measured using The Face, Legs, Activity, Cry, Consolability scale (FLACC), the Wong-Baker FACES Pain Rating Scale (FACES), and the Visual Analogue Scale (VAS).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 4
• Est. completion date: March 29, 2021
• Est. primary completion date: January 27, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 6 Months to 18 Years

Eligibility

Inclusion Criteria:

• Age: 6 months - < 18 years old;

• Chest tubes or minimally invasive video assisted thoracic surgery;

• Surgery scheduled between 7AM and 5PM

• Weight greater than 4kg

Exclusion Criteria:

• Renal dysfunction;

• Liver dysfunction;

• Hypoalbuminemia;

• Allergy to local anesthetic;

• Spinal hardware or instrumentation;

• Scoliosis;

• Obesity defined as a BMI >95% percentile

Related Conditions & MeSH terms

• Anesthesia, Local

Intervention

Drug:
• Ropivacaine
Given the reproducible efficacy of the erector spinae plane block for thoracic procedures, this pilot study will recruit patients scheduled to undergo thoracic surgery with the adjunct of an erector spinae plane block for perioperative pain. Participants will be assigned sequentially to either ropivacaine 0.2% at 0.3ml/kg or ropivacaine 0.5% at 0.3ml/kg.

Locations

Country	Name	City	State
United States	Texas Children's Hospital	Houston	Texas

Sponsors (1)

Lead Sponsor	Collaborator
Baylor College of Medicine

Country where clinical trial is conducted

United States, 

References & Publications (20)

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De Cassai A, Bonvicini D, Correale C, Sandei L, Tulgar S, Tonetti T. Erector spinae plane block: a systematic qualitative review. Minerva Anestesiol. 2019 Mar;85(3):308-319. doi: 10.23736/S0375-9393.18.13341-4. Epub 2019 Jan 4. — View Citation

Fang B, Wang Z, Huang X. Ultrasound-guided preoperative single-dose erector spinae plane block provides comparable analgesia to thoracic paravertebral block following thoracotomy: a single center randomized controlled double-blind study. Ann Transl Med. 2019 Apr;7(8):174. doi: 10.21037/atm.2019.03.53. — View Citation

Forero M, Adhikary SD, Lopez H, Tsui C, Chin KJ. The Erector Spinae Plane Block: A Novel Analgesic Technique in Thoracic Neuropathic Pain. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):621-7. doi: 10.1097/AAP.0000000000000451. — View Citation

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Krishna SN, Chauhan S, Bhoi D, Kaushal B, Hasija S, Sangdup T, Bisoi AK. Bilateral Erector Spinae Plane Block for Acute Post-Surgical Pain in Adult Cardiac Surgical Patients: A Randomized Controlled Trial. J Cardiothorac Vasc Anesth. 2019 Feb;33(2):368-375. doi: 10.1053/j.jvca.2018.05.050. Epub 2018 Jun 4. Erratum In: J Cardiothorac Vasc Anesth. 2022 Feb;36(2):627. — View Citation

Long JB, Birmingham PK, De Oliveira GS Jr, Schaldenbrand KM, Suresh S. Transversus abdominis plane block in children: a multicenter safety analysis of 1994 cases from the PRAN (Pediatric Regional Anesthesia Network) database. Anesth Analg. 2014 Aug;119(2):395-399. doi: 10.1213/ANE.0000000000000284. — View Citation

Lonnqvist PA, Ecoffey C, Bosenberg A, Suresh S, Ivani G. The European society of regional anesthesia and pain therapy and the American society of regional anesthesia and pain medicine joint committee practice advisory on controversial topics in pediatric regional anesthesia I and II: what do they tell us? Curr Opin Anaesthesiol. 2017 Oct;30(5):613-620. doi: 10.1097/ACO.0000000000000508. — View Citation

Munoz F, Cubillos J, Bonilla AJ, Chin KJ. Erector spinae plane block for postoperative analgesia in pediatric oncological thoracic surgery. Can J Anaesth. 2017 Aug;64(8):880-882. doi: 10.1007/s12630-017-0894-0. Epub 2017 Apr 26. No abstract available. — View Citation

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Suresh S, De Oliveira GS Jr. Local anaesthetic dosage of peripheral nerve blocks in children: analysis of 40 121 blocks from the Pediatric Regional Anesthesia Network database. Br J Anaesth. 2018 Feb;120(2):317-322. doi: 10.1016/j.bja.2017.10.019. Epub 2017 Nov 24. Erratum In: Br J Anaesth. 2018 Sep;121(3):686. — View Citation

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* Note: There are 20 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Serum Alpha Acid Glycoprotein(AAG) Level	Serum alpha acid glycoprotein levels were analyzed with serum ropivacaine concentrations. No additional samples were collected for AAG levels but laboratory analysis was completed simultaneously with ropivacaine concentrations.	Pre-op
Primary	Ropivacaine Concentrations	Pharmacokinetics(PK) of free and total serum ropivacaine concentrations following erector spinae plane peripheral nerve block administration. Blood samples were drawn at the indicated time points for each subject. Laboratory assays will be completed and resulted for all subject samples collected.	Prior to administration and at 30, 60, 90-minutes and 2, 4, 6-hours following intravenous access in situ
Secondary	Post-anesthesia Care Unit Pain Scores Using FLACC Scale	The Face, Legs, Activity, Cry, Consolability Scale (FLACC) is a measurement used to assess pain for children between the ages of 2 months and 7 years or individuals that are unable to communicate their pain. The scale is scored in a range of 0-10 with 0 representing no pain. The scale has five criteria, which are each assigned a score of 0, 1 or 2. Scores will be tracked from nursing inputs.; There scale was utilized for one subject. The measure data was collected <2 hours post-op.	Every 4 hours (up to 12 hours after arrival in PACU)
Secondary	Post-anesthesia Care Unit Pain Scores Using FACES Pain Rating Scale	The FACES Pain Rating Scale is a tool originally created for children to help them communicate their pain. Now the scale is used around the world with people ages 3 and older. The scale uses 6 faces scored 0-10 with 0 representing no pain. Each facial criteria increases by a score of 2. Scores will be tracked from nursing inputs.; There was no data collected for this measure as this scale was not used. Subjects were assessed with a different validated Pain Scale, not data was collected using this scale.	Every 4 hours (up to 12 hours after arrival in PACU)
Secondary	Post-anesthesia Care Unit Pain Scores Using VAS	The visual analog scale (VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" and "worst pain." A score of 0 represents no pain and 10 represents the worst the pain could be. Scores will be tracked from nursing inputs.	Every 4 hours (up to 12 hours after arrival in PACU)
Secondary	Morphine Equivalents	Consumption of morphine per subject was collected post-operatively.	12 hours