Pain in Carpal Tunnel Release Wide-awake Local Anesthesia With no Tourniquet vs Local Anesthesia With Tourniquet

Study Overview
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Brief Summary
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The aim of this study is to compare pain, satisfaction, and experience between patients who underwent Carpal Tunnel Release with wide-awake local anesthesia no tourniquet technique and local anesthesia with a tourniquet.

Detailed Description
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The surgical pathology of the hand has grown exponentially. In most cases, the resolution is performed in outpatients with short surgical times. Given the increased demand for this type of surgery, surgeons have sought different variables to reduce the costs and human resources. Thus, the wide-awake local anesthesia no tourniquet procedure (WALANT). It deals with the non-need for anesthetic monitoring and with the regional use of anesthesia with epinephrine. Its use avoids placing a pneumatic cuff on the arm owing to the vasoconstrictive action of epinephrine. However, the drug takes 25-30 minutes to achieve the maximum hemostatic effect, and adverse effects, such as distal necrosis, have been reported. Therefore, the technique of local anesthesia without epinephrine with a tourniquet (LA-T) is also used daily by hand surgeons. The use of a tourniquet, a pneumatic cuff, for less than 20 minutes has been associated with the same or lower pain profiles than the wide-awake local anesthesia no tourniquet without running the risk of adverse effects of epinephrine. The objective of this study is to compare and assess pain and patient experience after short-duration hand surgery using the WALANT and LA-T techniques. The investigators hypothesized that both types of procedures had a similar level of satisfaction.

Official Title
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Intraoperative Pain in Carpal Tunnel Release Wide-awake Local Anesthesia With no Tourniquet vs Local Anesthesia With Tourniquet

Conditions
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Carpal Tunnel Syndrome

Intervention / Treatment
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* Procedure: Carpal tunnel release, WALANT technique
* Procedure: Carpal tunnel release using a tourniquet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Carpal tunnel syndrome with surgical resolution Surgical procedures takes less than 30 minutes Exclusion Criteria: Lost follow-up

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 100 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: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: wide-awake local anesthesia no tourniquet<br>Patients will be operated under local anesthesia without a tourniquet (WALANT technique) | Procedure: Carpal tunnel release, WALANT technique<br>* Patients will receive 20 ml of 1% lidocaine with 1:100,000 epinephrine (buffered 10:1 with 8.4% sodium bicarbonate). Thirty minutes before carpal tunnel release surgery, 10 mL will be injected subcutaneously, and 10 mL will be injected into the carpal tunnel. Patients will go under open carpal tunnel release without a tourniquet.<br>|
| Active Comparator: Tourniquet<br>Patients will be operated under local anesthesia with the use of a tourniquet | Procedure: Carpal tunnel release using a tourniquet<br>* Patients will receive 20 ml of 1% lidocaine with 1:100,000 epinephrine (buffered 10:1 with 8.4% sodium bicarbonate). Thirty minutes before carpal tunnel release surgery, 10 mL will be injected subcutaneously, and 10 mL will be injected into the carpal tunnel. Patients will go under open carpal tunnel release using a hemostatic cuff. The hemostatic cuff will be insufflated at the level of the arm at a pressure of 100 mmHg higher than the patient's systolic pressure. The cuff will be removed once wound closure is complete.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain during surgery | Visual analog scale. A numerical scale from 0 to 10 (a higher score means the worst outcome), where 0 indicates no pain, and 10 indicates the worst pain possible. | Immediately after surgery |