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Carpal Tunnel SyndromeNCT02315573

Lidocaine With Epinephrine vs. Bupivacaine With Epinephrine as Local Anesthetic Agents in Wide-awake Hand Surgery

A study testing Wrist block anesthesia in people with Carpal Tunnel Syndrome, run by St. Mary's Research Center, Canada at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is focused on comparing patients' pain scores on a visual analogue scale (VAS) and the difference in analgesics use post-operatively (with the same prescription defining only the maximum frequency) between lidocaine with epinephrine \& bupivacaine with epinephrine as local anesthetics in wide-awake hand… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Carpal Tunnel Syndrome
What is being tested?
Wrist block anesthesia
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
61 participants
Where
1 siteCanada
Study dates
Oct 2014to Apr 2019
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Over 18 years old
  • First time carpal tunnel surgery

Who cannot join

  • Regular analgesic medication consumption
  • More than one surgical procedure at the same time as carpal tunnel surgery
  • Need for a surrogate decision maker
  • Allergic or unable to take morphine, hydromorphone (Dilaudid), acetaminophen (Tylenol), lidoxaine (Xylocaine), bupivacaine (Marcane), or epinephrine
  • End stage kidney disease
  • End stage liver disease
  • Pregnant

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • St. Mary's Hospital Center

    Montreal, Quebec, H3T 1M5

Other trials in Canada

About this study

Official title: Lidocaine With Epinephrine vs. Bupivacaine With Epinephrine as Local Anesthetic Agents in Wide-awake Hand Surgery: an Outcome Study of Patients' Pain Perception.

This study is focused on comparing patients' pain scores on a visual analogue scale (VAS) and the difference in analgesics use post-operatively (with the same prescription defining only the maximum frequency) between lidocaine with epinephrine \& bupivacaine with epinephrine as local anesthetics in wide-awake hand surgery. The investigators' hypothesis states that a longer acting local anesthetic agent (bupivacaine) would be able to provide better postoperative pain relief demonstrated by lower pain scores on VAS and less analgesics use (as will be recorded on the patient's log). This will be mainly obvious in the first 24 hours postoperative period when the pain is usually at maximum levels and starts to decline thereafter. If the investigators' hypothesis is true, this may potentially change practices of many hand surgeons towards the routine use of longer acting local anesthetics particularly in wide-awake hand surgery, and perhaps could be extrapolated to other surgical specialties. Further, a reduction in postoperative analgesics use would be of paramount clinical importance, as it would reduce their potential side effects.

Read the detailed description

The purpose of this study is to better understand the differences of two commonly used local anesthetics in carpal tunnel surgery. This study will explore the differences in terms of patient satisfaction during surgery (measured on VAS), pain after surgery (measured on VAS), and the need for pain medications after surgery (patients will annotate on a log given to them the time of the medication taken if needed for analgesia).

Wide awake hand surgery (freezing your limb while being fully awake) has recently been popularized as being faster and safer for patients compared to hand surgery under general anesthesia or with sedation. Advantages include fast recovery and no risks of general anesthesia.

In order to freeze the wrist to undergo carpal tunnel surgery, a local anesthetic is injected into the nerves of the wrist. Among the most commonly used anesthetic agents are Lidocaine (shorter duration of anesthesia) and Bupivacaine (longer duration of anesthesia). Until now, no enough evidence to support using one anesthetic agent over the other. Furthermore, no previous studies looked at the perception of pain from patient's perspectives when using different anesthetic agents.

There will be NO change in the standard medical care that patients will receive whether or not patients decide to participate in the study. Patients that join the study will receive the same anesthetic agents used in those procedures as patients who decide not to participate. The only difference will be collecting clinical data from participants and asking participants to complete two questionnaires regarding the surgical experience, and the perceived level of pain during the two days that follow surgery. As well, participants will be asked to keep a simple log of the pain medications that are consumed during the two days after the surgery. Patients' total participation time should take no more than 30 minutes.

Patients' decision to participate in this study will help doctors in the future to decide which of these two used anesthetic agents (Lidocaine or Bupivacaine) gives patients the best experience during surgery. As well, it will help reduce the pain that some patients experience after surgery, as well as reduce the need for pain medications after surgery.

Being tested
Wrist block anesthesia
Keywords
Carpal Tunnel Syndrome, Anesthetics, Local, Pain Perception, Pain Measurement, Analgesia, Lidocaine, Bupivacaine
Medical subject headings
Carpal Tunnel Syndrome, Agnosia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Wrist block anesthesiaProcedure or surgery

    Also called Lidocaine with epinephrine, Bupivacain with epinephrine

    The carpal tunnel release surgery will be performed under wrist block anesthesia. Group 1 will have the wrist block performed with Lidocaine and epinephrine, while Group 2 with Bupivacaine and epinephrine.

Study groups in NCT02315573
Study groupRoleWhat they receive
Lidocaine with epinephrineExperimentalWrist block anesthesia with Lidocaine 1% with epinephrine; 10cc. Group 1 will receive the same treatment as group 2, except that the wide-awake carpal tunnel release surgery will be performed under Lidocaine anesthesia instead of Bupivacaine anesthesia.
Receives: Procedure: Wrist block anesthesia
Bupivacaine with epinephrineExperimentalWrist block anesthesia with Bupivacaine 0.25% with epinephrine; 10cc. Group 2 will receive the same treatment as group 1, except that the wide-awake carpal tunnel release surgery will be performed under Bupivacaine anesthesia instead of Lidocaine anesthesia.
Receives: Procedure: Wrist block anesthesia

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain scores on a visual analogue scale

    Patients' pain scores on a visual analogue scale over the first 24 hours after surgery.

    Measured: 24 hours

  2. Pattern and amount of analgesics consumed

    The time of consumption and the type of analgesic (acetaminophen 1g PO q6hr PRN or morphine 5mg PO q4hr PRN) consumed over the first 48 hours after surgery. This will be recorded in the medication log given to patients.

    Measured: 48 hours

Secondary outcomes (2)
  1. Pain scores on a visual analogue scale

    Patients' pain scores on a visual analogue scale perceived between the first 24 hours and 48 hours after surgery.

    Measured: 24 hours

  2. Patient satisfaction scores on a visual analogue scale

    Patient self rated satisfaction on a visual analogue scale with wide-awake carpal tunnel release surgery. Will be measured immediately after surgery.

    Measured: Immediate

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Dec 2014 (estimated)
  2. Study startOct 2014
  3. Primary completionApr 2019
  4. Study completionApr 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
61 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02315573
Sponsor's protocol ID
SMHC #14-30
Status last verified
Apr 2019
First submitted
3 Dec 2014
Last updated
23 Apr 2019
Results posted
No
Data monitoring committee
Yes

Publications

  • Wildin C, Dias JJ, Heras-Palou C, Bradley MJ, Burke FD. Trends in elective hand surgery referrals from primary care. Ann R Coll Surg Engl. 2006 Oct;88(6):543-6. doi: 10.1308/003588406X117070.

    PubMed 17059713
  • Angermann P, Lohmann M. Injuries to the hand and wrist. A study of 50,272 injuries. J Hand Surg Br. 1993 Oct;18(5):642-4. doi: 10.1016/0266-7681(93)90024-a.

    PubMed 8294834
  • Larsen CF, Mulder S, Johansen AM, Stam C. The epidemiology of hand injuries in The Netherlands and Denmark. Eur J Epidemiol. 2004;19(4):323-7. doi: 10.1023/b:ejep.0000024662.32024.e3.

    PubMed 15180102
  • Neill RS. Postoperative analgesia following brachial plexus block. Br J Anaesth. 1978 Apr;50(4):379-82. doi: 10.1093/bja/50.4.379.

    PubMed 656255
  • Ganzberg S, Kramer KJ. The use of local anesthetic agents in medicine. Dent Clin North Am. 2010 Oct;54(4):601-10. doi: 10.1016/j.cden.2010.06.001.

    PubMed 20831924
  • Alhelail M, Al-Salamah M, Al-Mulhim M, Al-Hamid S. Comparison of bupivacaine and lidocaine with epinephrine for digital nerve blocks. Emerg Med J. 2009 May;26(5):347-50. doi: 10.1136/emj.2008.062497.

    PubMed 19386869
  • Conolly WB, Berry FR. The place of peripheral nerve blocks in reconstructive hand surgery. Hand. 1977 Jun;9(2):157-9. doi: 10.1016/s0072-968x(77)80011-9.

    PubMed 914091
  • Lalonde DH. Reconstruction of the hand with wide awake surgery. Clin Plast Surg. 2011 Oct;38(4):761-9. doi: 10.1016/j.cps.2011.07.005.

    PubMed 22032599
  • Pratap JN, Shankar RK, Goroszeniuk T. Co-injection of clonidine prolongs the anesthetic effect of lidocaine skin infiltration by a peripheral action. Anesth Analg. 2007 Apr;104(4):982-3. doi: 10.1213/01.ane.0000257949.46444.a8.

    PubMed 17377118
  • Reinhart DJ, Stagg KS, Walker KG, Wang WP, Parker CM, Jackson HH, Walker EB. Postoperative analgesia after peripheral nerve block for podiatric surgery: clinical efficacy and chemical stability of lidocaine alone versus lidocaine plus ketorolac. Reg Anesth Pain Med. 2000 Sep-Oct;25(5):506-13. doi: 10.1053/rapm.2000.7624.

    PubMed 11009237
  • Thomson CJ, Lalonde DH. Randomized double-blind comparison of duration of anesthesia among three commonly used agents in digital nerve block. Plast Reconstr Surg. 2006 Aug;118(2):429-32. doi: 10.1097/01.prs.0000227632.43606.12.

    PubMed 16874214
  • Reichl M, Quinton D. Comparison of 1% lignocaine with 0.5% bupivacaine in digital ring blocks. J Hand Surg Br. 1987 Oct;12(3):375-6. doi: 10.1016/0266-7681_87_90192-6.

    PubMed 3325593
  • Gorzack A. Towards evidence based emergency medicine: best BETs from the Manchester Royal Infirmary. Lignocaine or bupivacaine for digital ring block. J Accid Emerg Med. 1998 Sep;15(5):353. doi: 10.1136/emj.15.5.353. No abstract available.

    PubMed 10454811
  • Valvano MN, Leffler S. Comparison of bupivacaine and lidocaine/bupivacaine for local anesthesia/digital nerve block. Ann Emerg Med. 1996 Apr;27(4):490-2. doi: 10.1016/s0196-0644(96)70239-1.

    PubMed 8604868
  • Nystrom A, Lindstrom G, Reiz S, Hanel DP. Bupivacaine: a safe local anesthetic for wrist blocks. J Hand Surg Am. 1989 May;14(3):495-8. doi: 10.1016/s0363-5023(89)80010-3.

    PubMed 2544640

Questions about this trial

What is this clinical trial studying?

A study testing Wrist block anesthesia in people with Carpal Tunnel Syndrome, run by St. Mary's Research Center, Canada at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 23 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain scores on a visual analogue scale (time frame: 24 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02315573, which also lists 17 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Apr 2019.

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