Life Cycle Assessment of Different Types of Anesthetic

Study Overview
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Brief Summary
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Following Ethics approval, all adult patients undergoing surgery to fix the wrist fracture will be approached and consent to undergo this study. The amount of waste generated from general anesthetic, regional anesthetic and regional+general anesthetic will be collected and weighed. Patients undergoing this type of wrist surgery have only regional anesthetic, or general anesthetic, or both ie. regional anesthetic and general anesthetic. The aim of the study is to compare the amount of waste generated from each type of anesthetic and this will give us a better idea of which anesthetic is more environmentally sustainable.

Detailed Description
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Following Ethics approval, all adult patients undergoing surgery to fix the wrist fracture will be approached and consent to undergo this study. The amount of waste generated from general anesthetic, regional anesthetic and regional+general anesthetic will be collected and weighed. Waste will include disposable and reusable wastes. Examples of disposable waste are all plastic packaging, syringes, needles, breathing tube, breathing circuits, gloves as well as drugs. Examples of reusable waste will be anesthetic face mask, laryngeal mask (which is a form of airway device that can be reprocessed), sterile gowns. The amount of anesthetic gas used will be obtained from the anesthetic machine. Patients undergoing this type of wrist surgery have only regional anesthetic (freezing performed higher up in the arm to numb the whole arm for several hours), or general anesthetic (patient completely goes to deep anesthetic sleep), or both ie. regional anesthetic (freezing just for pain control afterwards) and general anesthetic (patient goes to deep anesthetic sleep after the freezing is done and they may need less pain killer during the surgery as well as afterwards). The amount of waste generated will be compared amongst these 3 groups by life cycle analysis.

Official Title
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Life Cycle Assessment of General Anesthetic, Regional Anesthetic and the Combination of General Anesthetic and Regional Anesthetic: a Randomized Controlled Trial

Conditions
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Carbon Footprint in Anesthetic

Intervention / Treatment
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* Other: Regional anesthetic
* Other: General anesthetic
* Other: Combined general anesthetic and regional anesthetic


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All adult patients undergoing open reduction and internal fixation of wrist ASA 1-3 Exclusion Criteria: no contraindications for general anesthetic in the group for general anesthetic and vice versa

Ages Eligible for Study
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Minimum Age: 19 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Mulicentre trial
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Regional anesthetic<br>Patients only have nerve block with or without sedation | Other: Regional anesthetic<br>* Patient having just the nerve block for surgery<br>|
| Other: General anesthetic<br>Patients only have general anesthetic | Other: General anesthetic<br>* Patient having just general anesthetic ie. 'go completely under' for surgery<br>|
| Other: Combined general anesthetic and regional anesthetic<br>Patients have both general anesthetic and regional anesthetic together | Other: Combined general anesthetic and regional anesthetic<br>* Patient having a combination of a nerve block and general anesthetic for surgery<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Carbon dioxide emission | Amount of carbon dioxide emission | During surgical intervention | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Generation of solid waste | Solid waste generated within the type of anesthetic | During surgical intervention | 
| Duration of surgery | Duration of surgery | During surgical intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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carbon footprint, anesthetic waste, life cycle analsis