Interscalene vs Anterior and Posterior Suprascapular Nerve Block for Shoulder Arthroscopic Surgeries

NCT ID: NCT03277326

Last Updated: 2019-05-07

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

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-08-30

Study Completion Date

2018-07-07

Brief Summary

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To compare ISB vs anterior and posterior approaches of suprascapular block in terms of lung function and analgesia

Detailed Description

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Interscalene block (ISB) is commonly used to provide pain control for shoulder surgeries. However, it is associated with several side effects, in particular, a high incidence of phrenic nerve blockade.

The suprascapular nerve block (SSB) has been proposed as an alternative to the ISB as it has a lower likelihood of causing phrenic nerve blockade. There are 2 commonly used approaches for the suprascapular nerve block, anterior and posterior. The anterior approach may still result in some degree of impairment of lung function.

The primary aim is to assess the pulmonary function after performance of ISB, aSSB and pSSB. Secondary outcomes are analgesic effects and incidence of adverse effects of these blocks.

Conditions

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Arthroscopic Shoulder Surgery Interscalene Block Suprascapular Nerve Block

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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ISB

Interscalene brachial plexus block

Group Type ACTIVE_COMPARATOR

ISB

Intervention Type PROCEDURE

ISB block with 0.5% ropivicaine 15mls ( 45mg )

aSSB

Anterior Suprascapular Block

Group Type ACTIVE_COMPARATOR

aSSB

Intervention Type PROCEDURE

aSSB block with 0.5% ropivicaine 15mls ( 45mg )

pSSB

Posterior Suprascapular Block

Group Type ACTIVE_COMPARATOR

pSSB

Intervention Type PROCEDURE

pSSB block with 0.5% ropivicaine 15mls ( 45mg )

Interventions

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ISB

ISB block with 0.5% ropivicaine 15mls ( 45mg )

Intervention Type PROCEDURE

aSSB

aSSB block with 0.5% ropivicaine 15mls ( 45mg )

Intervention Type PROCEDURE

pSSB

pSSB block with 0.5% ropivicaine 15mls ( 45mg )

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Patients scheduled for elective arthroscopic shoulder surgery under general anaesthesia
* Patients 21 years old and above
* American Society of Anesthesiologists (ASA) physical status 1 to 3
* BMI 18-35 kg/m2

Exclusion Criteria

* Patients unable to give consent or inability to communicate/ cooperate
* Patients with chronic use of strong opioids (morphine, oxycodone)
* Patients with allergy to local anaesthetics or any drugs included in the study
* Patients with contraindications for regional anaesthesia such as coagulopathy
* Patients with pre-existing neurological deficits in upper limb/ phrenic nerve palsy
* Patients with pre-existing lung disease (COPD, uncontrolled asthma)
Minimum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Changi General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Yean Chin Lim

Role: PRINCIPAL_INVESTIGATOR

CGH

Locations

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Changi General Hospital

Singapore, , Singapore

Site Status

Countries

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Singapore

Other Identifiers

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2017/2459

Identifier Type: -

Identifier Source: org_study_id

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