Assessing Peripheral Nerve Block Scoring Systems for Intra-Operative and Post-Operative Analgesia

January 18, 2014 updated by: Dr Patrick Conroy, The Adelaide and Meath Hospital

The Effectiveness of Peripheral Nerve Block Scoring Systems in Predicting the Success of a Block for Intra-Operative and Post-Operative Analgesia

The purpose of this study is to determine if Peripheral Nerve Block scoring systems are effective in predicting the achievement of intra-operative anaesthesia and post-operative analgesia.

Study Overview

Status

Unknown

Conditions

Detailed Description

Upper and lower extremity surgery is particularly suited to regional anaesthesia. Peripheral nerve blocks (PNB) can produce surgical anaesthesia in less than 30 minutes. PNBs have been associated with early outcome improvements when surgery is conducted awake or with light sedation. These benefits include reduced nausea and vomiting, improved patient satisfaction and accelerated recovery room and hospital discharge. PNBs can also provide effective postoperative pain relief.

Currently there is no globally accepted standard by which to assess when surgical anaesthesia has been achieved following administration of PNBs. The decision as to when adequate surgical anaesthesia has been achieved and when surgery can then proceed is usually left to the discretion of the anaesthetist. The anaesthetist can assess nerve blockade though several motor and sensory function tests: cold, heat, touch and pinprick sensitivity. Several scoring systems have been described using these tests to estimate when surgical anaesthesia has been achieved but none have been independently validated outside of the original studies in which they have been described.

Study Type

Observational

Enrollment (Anticipated)

40

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients undergoing orthopaedic or vascular surgery who would receive a peripheral nerve block as part of their care.

Description

Inclusion Criteria:

  • American Society of Anesthesiologists Grade I-IV

Exclusion Criteria:

  • Contraindications to regional anesthesia
  • Language barrier
  • Existence of neurologic disease affecting the operative site
  • Severe psychiatric disease
  • Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Predictive value of block assessment score
Time Frame: 30 mins post block completion
30 mins post block completion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The Adelaide and Meath Hospital

Investigators

  • Principal Investigator: Patrick H Conroy, The Adelaide and Meath Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2013

Primary Completion (Anticipated)

June 1, 2014

Study Completion (Anticipated)

June 1, 2014

Study Registration Dates

First Submitted

January 16, 2014

First Submitted That Met QC Criteria

January 18, 2014

First Posted (Estimate)

January 22, 2014

Study Record Updates

Last Update Posted (Estimate)

January 22, 2014

Last Update Submitted That Met QC Criteria

January 18, 2014

Last Verified

January 1, 2014

More Information

Terms related to this study

Other Study ID Numbers

  • SS/2013/81

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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