Efficacy and Safety of Superior Trunk Block Versus Interscalene Block for Post-operative Analgesia in Shoulder Surgeries

Study Overview
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Brief Summary
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Efficacy and safety of superior trunk block versus interscalene block for post-operative analgesia in shoulder surgeries

Detailed Description
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The interscalene brachial plexus block is the gold standard analgesic technique for surgery involving the shoulder and upper arm. However, due to its complications as hemidiaphragmatic paralysis, the superior trunk block was developed in an attempt to reduce major complications.The utility of the superior trunk block has yet to be studied in shoulder surgeries.

Official Title
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Efficacy and Safety of Superior Trunk Block Versus Interscalene Block for Post-operative Analgesia in Shoulder Surgeries

Conditions
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Superior Trunk Block Versus Interscalene Block for Post-operative Analgesia in Shoulder Surgeries

Intervention / Treatment
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* Procedure: interscalene block
* Procedure: superior trunk block


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients American Society of Anaesthesiologists physical status (ASA) is I to II. Both genders. Aged group from 21 to 50 years old. Patients electively scheduled for shoulder surgery under general anesthesia with normal coagulation profile. Exclusion Criteria: Refusal of the procedure or participation in the study. Any history or evidence of coagulopathy. Evidence of infection at injection site. Allergy to study drugs. Patients with pulmonary severe respiratory disease. Herniated cervical disc or cervical myelopathy. Pre-existing neuropathy of the operative limb

Ages Eligible for Study
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Minimum Age: 21 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

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: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: interscalene block group<br>participants undergoing shoulder surgeries will receive ultrasound guided interscalene block | Procedure: interscalene block<br>* will receive a 20 ml mixture of local anesthetic solution prepared as 10 ml of bupivacaine 0.5% diluted with 10 ml normal saline 0.9% will be injected in interscalene block.<br>Procedure: superior trunk block<br>* will receive a 20 ml mixture of local anesthetic solution prepared as 10 ml of bupivacaine 0.5% diluted with 10 ml normal saline 0.9% will be injected in superior trunk block.<br>|
| Active Comparator: superior trunk block group<br>participants undergoing shoulder surgeries will receive ultrasound guided superior trunk block | Procedure: interscalene block<br>* will receive a 20 ml mixture of local anesthetic solution prepared as 10 ml of bupivacaine 0.5% diluted with 10 ml normal saline 0.9% will be injected in interscalene block.<br>Procedure: superior trunk block<br>* will receive a 20 ml mixture of local anesthetic solution prepared as 10 ml of bupivacaine 0.5% diluted with 10 ml normal saline 0.9% will be injected in superior trunk block.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| diaphragmatic paralysis postoperative | o The incidence of diaphragmatic paralysis postoperative assessed by Diaphragmatic excursion distance by Ultrasound | within 24 hours after surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| analgesic efficacy | o Analgesic efficacy of the nerve block in both groups by assessing postoperative pain vas score | within 24 hours after surgery | 
| rescue analgesia | The total amount of rescue analgesia used | within 24 hours after surgery | 
| Post operative nausea and vomiting | incidence of post operative complications as nausea an vomiting | within 24 hours after surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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superior trunk block, interscalene block