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

Arthroscopic Shoulder Surgery Clinical Trial

Official title:

Randomised, Controlled Trial Comparing Interscalene Versus Anterior and Posterior Approaches of Suprascapular Nerve Block for Shoulder Arthroscopic Surgeries

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03277326
• Other study ID #: 2017/2459
• Status: Completed
• Phase: N/A
• Start date: August 30, 2017
• Est. completion date: July 7, 2018

Study information

• Verified date: May 2019
• Source: Changi General Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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

Description:

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 60
• Est. completion date: July 7, 2018
• Est. primary completion date: June 11, 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: 21 Years and older

Eligibility

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)

Related Conditions & MeSH terms

• Arthroscopic Shoulder Surgery
• Interscalene Block
• Suprascapular Nerve Block

Intervention

Procedure:
• ISB
ISB block with 0.5% ropivicaine 15mls ( 45mg )
• aSSB
aSSB block with 0.5% ropivicaine 15mls ( 45mg )
• pSSB
pSSB block with 0.5% ropivicaine 15mls ( 45mg )

Locations

Country	Name	City	State
Singapore	Changi General Hospital	Singapore

Sponsors (1)

Lead Sponsor	Collaborator
Changi General Hospital

Country where clinical trial is conducted

Singapore, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Pulmonary function	To assess the pulmonary function after performance of interscalene, anterior and posterior approaches to the suprascapular block	2 years
Secondary	Analgesic effects and complications	Analgesic effect (pain scores, opioid consumption, opioid related side effects), degree of motor blockade and incidence of adverse effects of blocks (Horner's syndrome, hoarseness of voice)	2 years