Continuous Paravertebral Block by Intraoperative Direct Access Versus Systemic Analgesia for Postthoracotomy Pain Relief

NCT ID: NCT04482192

Last Updated: 2020-07-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

63 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-06-15

Study Completion Date

2020-03-31

Brief Summary

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to evaluate the safety and efficacy of continuous paravertebral block by intraoperative direct access on postthoracotomy pain compared to systemic analgesia.

Detailed Description

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Based on a pilot study of 20 participants, 10 in each group, the mean visual analogue score of pain at rest (VAS) ± Standard Deviation (SD) at 6 hours postoperatively for Thoracic paravertebral block group (TPVB) participants were 3.0 ± 1.4 and that for systemic analgesia (SA) participants were 4.2 ± 1.6. The calculated significant sample size with a power of 0.85 and alpha error of 0.05 was 60 participants, with 1:1 allocation in each group.

Eighty two participants were assessed for eligibility criteria to be included in the study, 18 participants were excluded pre-randomization, and one participant was excluded post-randomization due to re-exploration for bleeding. Sixty three participants were analyzed in the study. Thoracic paravertebral block group (TPVB group) included 32 participants and systemic analgesia group (SA group) included 31 participants.

Technique of intraoperative paravertebral catheter insertion:

The investigators used the technique that was described by Sabanathan et al in 1988\[14\] and modified by them in 1990 \[15\]. After completing the surgical pulmonary procedure and with the chest is still open, starting from the posterior end of the thoracotomy, parietal pleura is raised from the posterior chest wall to the vertebral body and for two spaces above and below the incision of thoracotomy creating a pouch. A 16-gauge disposable Tuohy needle is inserted percutaneously through a low posterior interspace. The needle is advanced until the tip appeared in the created pouch. The stylet is removed, and a 16-gauge side-holed epidural catheter is advanced into the created pouch and the needle is withdrawn. Using a curved forceps, a small defect is done in the extrapleural fascia to be directly in the paravertebral space. The cannula is passed to the paravertebral space through the defect and advanced cranially for 2 to 3 cm. The parietal pleura is reattached to the posterior edge of the wound and the catheter is secured. Then a bolus dose 15-20 ml of 1% lidocaine is injected through the catheter and the chest is closed as usual with one or two intercostal drainage tubes according to the surgical procedure.

Protocol of analgesia:

All participants, in both groups, received intravenous analgesia with 1gm paracetamol and 30 mg ketorolac half an hour before the end of surgery.

Systemic analgesia (SA) group continue to receive 1gm paracetamol and 30 mg ketorolac by intravenous infusion every 6 hours for 3 days. Thoracic paravertebral block (TPVB) group received continuous infusion of 0.1 ml/kg/h of 1.0% lidocaine (l mg/kg/h) using infusion pump through the inserted paravertebral catheter for 3 days. Intravenous morphine sulfate (0.05mg/kg) was given as a rescue medication if the VAS ≥ 4 for both groups. A senior nurse was responsible for handling the analgesia regimen and another nurse was responsible for recording pain score on visual analogue scale (VAS) and morphine consumption, as scheduled.

Conditions

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Post Thoracotomy Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Thoracic paravertebral block group

Continuous thoracic paravertebral block with 1% lidocaine infusion for 3 postoperative days through a paravertebral catheter inserted intraoperatively by the surgeon.

Group Type ACTIVE_COMPARATOR

Thoracic paravertebral block

Intervention Type COMBINATION_PRODUCT

After ending pulmonary procedure, a pleural pouch created beside vertebral column, a catheter is inserted to the pouch for continuous infusion of 1% lidocaine for 3 postoperative days. Intravenous morphine sulfate (0.05mg/kg) was given as a rescue medication if the VAS ≥ 4.

Systemic analgesia group

patients in this group will receive paracetamol and ketorolac by intravenous infusion every 6 hours for 3 postoperative days

Group Type ACTIVE_COMPARATOR

Systemic analgesia

Intervention Type DRUG

Systemic analgesia (SA) group receive 1gm paracetamol and 30 mg ketorolac by intravenous infusion every 6 hours for 3 days. Intravenous morphine sulfate (0.05mg/kg) was given as a rescue medication if the VAS ≥ 4.

Interventions

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Thoracic paravertebral block

After ending pulmonary procedure, a pleural pouch created beside vertebral column, a catheter is inserted to the pouch for continuous infusion of 1% lidocaine for 3 postoperative days. Intravenous morphine sulfate (0.05mg/kg) was given as a rescue medication if the VAS ≥ 4.

Intervention Type COMBINATION_PRODUCT

Systemic analgesia

Systemic analgesia (SA) group receive 1gm paracetamol and 30 mg ketorolac by intravenous infusion every 6 hours for 3 days. Intravenous morphine sulfate (0.05mg/kg) was given as a rescue medication if the VAS ≥ 4.

Intervention Type DRUG

Other Intervention Names

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Study group Control group

Eligibility Criteria

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Inclusion Criteria

* • Elective posterolateral thoracotomy surgery

* American Society of Anesthesiologists (ASA) physical status of II and III

Exclusion Criteria

* • lack of patient consent.

* patients younger than 18 years,
* emergency surgery,
* previous thoracotomy,
* drug addiction,
* allergy to paracetamol (acetaminophen) or ketorolac,
* coagulopathy,
* hepatic dysfunction,
* chronic renal failure,
* history of gastric ulcer
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Zagazig University

OTHER_GOV

Sponsor Role lead

Responsible Party

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Ahmed Deebis

Professor cardiothoracic surgery

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ahmed Deebis, MD

Role: PRINCIPAL_INVESTIGATOR

Zagazig University

References

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Krakowski JC, Arora H. Con: Thoracic Epidural Block Is Not Superior to Paravertebral Blocks for Open Thoracic Surgery. J Cardiothorac Vasc Anesth. 2015 Dec;29(6):1720-2. doi: 10.1053/j.jvca.2015.06.012. Epub 2015 Jun 10. No abstract available.

Reference Type RESULT
PMID: 26386503 (View on PubMed)

Fortier S, Hanna HA, Bernard A, Girard C. Comparison between systemic analgesia, continuous wound catheter analgesia and continuous thoracic paravertebral block: a randomised, controlled trial of postthoracotomy pain management. Eur J Anaesthesiol. 2012 Nov;29(11):524-30. doi: 10.1097/EJA.0b013e328357e5a1.

Reference Type RESULT
PMID: 22914044 (View on PubMed)

Sabanathan S, Smith PJ, Pradhan GN, Hashimi H, Eng JB, Mearns AJ. Continuous intercostal nerve block for pain relief after thoracotomy. Ann Thorac Surg. 1988 Oct;46(4):425-6. doi: 10.1016/s0003-4975(10)64657-7.

Reference Type RESULT
PMID: 3178353 (View on PubMed)

Berrisford RG, Sabanathan SS. Direct access to the paravertebral space at thoracotomy. Ann Thorac Surg. 1990 May;49(5):854. doi: 10.1016/0003-4975(90)90058-e. No abstract available.

Reference Type RESULT
PMID: 2339953 (View on PubMed)

Wojtys ME, Wasikowski J, Wojcik N, Wojcik J, Wasilewski P, Lisowski P, Grodzki T. Assessment of postoperative pain management and comparison of effectiveness of pain relief treatment involving paravertebral block and thoracic epidural analgesia in patients undergoing posterolateral thoracotomy. J Cardiothorac Surg. 2019 Apr 16;14(1):78. doi: 10.1186/s13019-019-0901-3.

Reference Type RESULT
PMID: 30992044 (View on PubMed)

Elia N, Lysakowski C, Tramer MR. Does multimodal analgesia with acetaminophen, nonsteroidal antiinflammatory drugs, or selective cyclooxygenase-2 inhibitors and patient-controlled analgesia morphine offer advantages over morphine alone? Meta-analyses of randomized trials. Anesthesiology. 2005 Dec;103(6):1296-304. doi: 10.1097/00000542-200512000-00025.

Reference Type RESULT
PMID: 16306743 (View on PubMed)

Batra RK, Krishnan K, Agarwal A. Paravertebral block. J Anaesthesiol Clin Pharmacol. 2011 Jan;27(1):5-11. No abstract available.

Reference Type RESULT
PMID: 21804697 (View on PubMed)

Katayama T, Hirai S, Kobayashi R, Hamaishi M, Okada T, Mitsui N. Safety of the paravertebral block in patients ineligible for epidural block undergoing pulmonary resection. Gen Thorac Cardiovasc Surg. 2012 Dec;60(12):811-4. doi: 10.1007/s11748-012-0149-5. Epub 2012 Sep 16.

Reference Type RESULT
PMID: 22983833 (View on PubMed)

Related Links

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http://www.esraeurope.org/prospect

Procedure specific postoperative pain management. (2015) Thoracotomy.

Other Identifiers

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ZU-IRB: 6289

Identifier Type: -

Identifier Source: org_study_id

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