Efficacy of Ultrasound Guided Superficial Cervical Plexus Block for Tracheal Reconstruction Surgery:

Study Overview
=================
Brief Summary
-----------------
The essential goal for tracheal reconstruction is is the ability of the anaesthesiologist and surgeon to maintain control of the airway at all times. In the postoperative period the patient should maintain a flexed neck position to avoid any traction on the tracheal anastomosis. Thus, pain control is essential postoperatively so that patients will be awake and cooperative to maintain this position. [1]. Superficial cervical plexus block can be used in a variety of surgical procedures , including superficial surgery on the neck and shoulders and thyroid surgery as it results in anesthesia of the skin of the anterolateral neck and the ante-auricular and retro-auricular areas, as well as the skin overlying and immediately inferior to the clavicle on the chest wall Figures 1 and 6)[2]. Thus it can be used as an adjuvant to general anaesthesia to provide analgesia for patients undergoing tracheal resection and anastomosis to keep the patients awake and cooperative at the conclusion of the procedure. The goal of the ultrasound (US)-guided technique of SCB is to deposit local anesthetic within the vicinity of the sensory branches of the nerve roots C2, C3, and C4 which combine to form the four terminal branches (the lesser occipital, greater auricular, transverse cervical, and supraclavicular nerves) and emerge from behind the posterior border of the SCM. Advantages over the landmark-based technique include the ability to visualize the spread of local anesthetic in the correct plane, which therefore increases the success rate, and to avoid a needle insertion that is too deep and the inadvertent puncture of neighboring structures[3]. Aim of the work To assess the efficiency of using ultrasound-guided SCB for providing intra and postoperative analgesia for patients undergoing tracheal resection and anastomosis under general anaesthesia.

Official Title
-----------------
Efficacy of Ultrasound Guided Superficial Cervical Plexus Block for Tracheal Reconstruction Surgery on Quality of Recovery: a Randomized Control Study

Conditions
-----------------
Efficiency of Using Ultrasound-guided SCB for Providing Intra and Postoperative Analgesiatracheal Reconstruction Surgery

Intervention / Treatment
-----------------
* Procedure: superficial cervical plexus block


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: • ASA physical status I, II, and III adult patients undergoing elective tracheal resection and anastomosis under general anaesthesia were included. Exclusion Criteria: Coagulation disorders Pregnancy. Age less than 18 years. Patient refusal. Emergency re-operation within

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: SCPB<br> | Procedure: superficial cervical plexus block<br>* ultrasound guided injection of local anaesthesia in the superficial cervical plexus<br>* Other names: Bupivicaine;|
| Placebo Comparator: Control<br> | Procedure: superficial cervical plexus block<br>* ultrasound guided injection of local anaesthesia in the superficial cervical plexus<br>* Other names: Bupivicaine;|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| quality of recovery using quality of recovery 40 qusetionnaire | total score of Qor-40 (total score of 200) with highest indicates better outcome | first 24 hour | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| post operative morphine consumption | post operative morphine consumption | 24 hour | 
| visual analogue scale post-operative | visual analogue scale post-operative | first 24 hour |