NCT02993939

Brief Summary

Despite their reliability and efficacy for shoulder surgery analgesia, above clavicle brachial plexus blocks are related with phrenic nerve palsy and diaphragm paralysis that may not be tolerated in patients with chronic pulmonary disease. This RCT will compare the classic Interscalene block with combined infraclavicular block plus suprascapular nerve block in patients going for arthroscopic shoulder surgery. Main outcome is static pain in the recovery room measured with NRS. Secondary outcomes are pain at 12 and 24 hrs and incidence of diaphragmatic paralysis.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Dec 2016

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2016

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

December 12, 2016

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 15, 2016

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 28, 2017

Completed
3 days until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2017

Completed
Last Updated

May 4, 2017

Status Verified

May 1, 2017

Enrollment Period

5 months

First QC Date

December 12, 2016

Last Update Submit

May 2, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • Static Pain using numeric scale 0-10

    30 minutes after arrival to PACU

Secondary Outcomes (3)

  • Static Pain using numeric scale 0-10

    12 hrs after arrival to PACU

  • Diaphragm paralysis incidence

    30 minutes after block

  • Static Pain using numeric scale 0-10

    24 hrs

Study Arms (2)

Interscalene block

ACTIVE COMPARATOR

Ultrasound guided Brachial plexus block injecting 20 ml of levobupivacaine 0,25% plus epinephrine 5 micrograms per ml, in the Interscalene groove.

Procedure: Interscalene block

Diaphragm-sparing block

EXPERIMENTAL

Ultrasound guided combinated infraclavicular-Suprascapular block of the braquial plexus, injecting 20 ml of levobupivacaine 0,25% plus epinephrine 5 micrograms per ml dorsal to the axillary artery in the infraclavicular fossa plus an Ultrasound guided injection of 10 ml of levobupivacaine 0,25% plus epinephrine 5 micrograms per ml in the suprascapular fossa.

Procedure: Infraclavicular-suprascapular block

Interventions

Ultrasound guided single shot block above the clavicle

Interscalene block

Combined block of nerves far away from phrenic nerve

Diaphragm-sparing block

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age between 18 and 75 years
  • American Society of Anesthesiologists classification 1-3
  • body mass index between 20 and 30

You may not qualify if:

  • adults who are unable to give their own consent
  • pre-existing neuropathy (assessed by history and physical examination)
  • coagulopathy (assessed by history and physical examination and, if deemed clinically necessary, by blood work up i.e. platelets ≤ 100, International Normalized Ratio ≥ 1.4 or prothrombin time ≥ 50)
  • obstructive or restrictive pulmonary disease (assessed by history and physical examination)
  • renal failure (assessed by history and physical examination and, if deemed clinically necessary, by blood work up i.e. creatinine ≥ 100)
  • hepatic failure (assessed by history and physical examination and, if deemed clinically necessary, by blood work up i.e. transaminases ≥ 100)
  • allergy to local anesthetics (LAs)
  • pregnancy
  • prior surgery in the neck, infraclavicular region or suprascapular fossa
  • chronic pain syndromes requiring opioid intake at home

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Clinico Universidad de Chile

Santiago, Metropolitan, 8380456, Chile

Location

Related Publications (11)

  • Neal JM, Gerancher JC, Hebl JR, Ilfeld BM, McCartney CJ, Franco CD, Hogan QH. Upper extremity regional anesthesia: essentials of our current understanding, 2008. Reg Anesth Pain Med. 2009 Mar-Apr;34(2):134-70. doi: 10.1097/AAP.0b013e31819624eb.

  • Urmey WF, Talts KH, Sharrock NE. One hundred percent incidence of hemidiaphragmatic paresis associated with interscalene brachial plexus anesthesia as diagnosed by ultrasonography. Anesth Analg. 1991 Apr;72(4):498-503. doi: 10.1213/00000539-199104000-00014.

  • Martinez J, Sala-Blanch X, Ramos I, Gomar C. Combined infraclavicular plexus block with suprascapular nerve block for humeral head surgery in a patient with respiratory failure: an alternative approach. Anesthesiology. 2003 Mar;98(3):784-5. doi: 10.1097/00000542-200303000-00031. No abstract available.

  • Tran DQ, Dugani S, Finlayson RJ. A randomized comparison between ultrasound-guided and landmark-based superficial cervical plexus block. Reg Anesth Pain Med. 2010 Nov-Dec;35(6):539-43. doi: 10.1097/AAP.0b013e3181faa11c.

  • Chan CW, Peng PW. Suprascapular nerve block: a narrative review. Reg Anesth Pain Med. 2011 Jul-Aug;36(4):358-73. doi: 10.1097/AAP.0b013e3182204ec0.

  • Tran DQ, Bertini P, Zaouter C, Munoz L, Finlayson RJ. A prospective, randomized comparison between single- and double-injection ultrasound-guided infraclavicular brachial plexus block. Reg Anesth Pain Med. 2010 Jan-Feb;35(1):16-21. doi: 10.1097/AAP.0b013e3181c7717c.

  • Spence BC, Beach ML, Gallagher JD, Sites BD. Ultrasound-guided interscalene blocks: understanding where to inject the local anaesthetic. Anaesthesia. 2011 Jun;66(6):509-14. doi: 10.1111/j.1365-2044.2011.06712.x.

  • Flohr-Madsen S, Ytrebo LM, Valen K, Wilsgaard T, Klaastad O. A randomised placebo-controlled trial examining the effect on hand supination after the addition of a suprascapular nerve block to infraclavicular brachial plexus blockade. Anaesthesia. 2016 Aug;71(8):938-47. doi: 10.1111/anae.13504.

  • Lloyd T, Tang YM, Benson MD, King S. Diaphragmatic paralysis: the use of M mode ultrasound for diagnosis in adults. Spinal Cord. 2006 Aug;44(8):505-8. doi: 10.1038/sj.sc.3101889. Epub 2005 Dec 6.

  • Dhir S, Sondekoppam RV, Sharma R, Ganapathy S, Athwal GS. A Comparison of Combined Suprascapular and Axillary Nerve Blocks to Interscalene Nerve Block for Analgesia in Arthroscopic Shoulder Surgery: An Equivalence Study. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):564-71. doi: 10.1097/AAP.0000000000000436.

  • Aliste J, Bravo D, Finlayson RJ, Tran DQ. A randomized comparison between interscalene and combined infraclavicular-suprascapular blocks for arthroscopic shoulder surgery. Can J Anaesth. 2018 Mar;65(3):280-287. doi: 10.1007/s12630-017-1048-0. Epub 2017 Dec 19.

MeSH Terms

Conditions

Shoulder Injuries

Condition Hierarchy (Ancestors)

Wounds and Injuries

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD Clinical Instructor

Study Record Dates

First Submitted

December 12, 2016

First Posted

December 15, 2016

Study Start

December 1, 2016

Primary Completion

April 28, 2017

Study Completion

May 1, 2017

Last Updated

May 4, 2017

Record last verified: 2017-05

Data Sharing

IPD Sharing
Will not share

Locations