The Effect of Erector Spinae Block on Diaphragma Movement

Study Overview
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Brief Summary
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Laparoscopic cholecystectomy surgeries cause moderate/severe pain and thus can result in shallow breathing, atelectasis and increased opioid consumption in the early postoperative period which in turn cause a longer hospital stay. Erector spinae plane block has been shown to decrease lower thoracic pain after laparoscopic cholecystectomy surgeries. This study aims to investigate the effect of erector spinae plane block on opioid consumption and diaphragma movement after laparoscopic cholecystectomy surgeries.

Official Title
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The Effect of Erector Spinae Plane Block on Diaphragma Movement in Laparoscopic Cholecystectomies

Conditions
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Laparoscopic Cholecystectomy, Acute Post-operative Pain, Respiratory Diaphragm

Intervention / Treatment
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* Procedure: Erector spinae plane block


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Ages between 18 and 65 Patients in American Society of Anesthesiologists Classification I or II Elective laparoscopic cholecystectomy surgery performed under general anesthesia Exclusion Criteria: Patient refusal Patients who can not provide informed consent or with a known psychiatric disease Patients with a known allergy to study drugs Patients using anticoagulants and corticosteroids Patients with diaphragma hernia, chronic obstructive pulmonary disease, lung cancer Patients who are not able to use a patient controlled analgesia device

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 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: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Block Group<br> | Procedure: Erector spinae plane block<br>* Bilateral erector spinae plane block will be performed preoperatively under ultrasound guidance using 15 ml bupivacaine on each side<br>|
| No Intervention: Control Group<br> | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change of Diaphragma excursion | The change of diaphragma excursion as measured by ultrasound in M-mode from the preoperative period to the postoperative period | Preoperative measurement-before the erector spina plane block application and postoperative measurement- 30 minutes after extubation | 
| Change in Opioid consumption | To assess Tramadol consumption measured in mg postoperatively in the first 12 hours after the operation | Postoperative 12 hours: in the first 30 minutes after extubation, 1st hour, 6th hour and 12th hour | 
| Change in postoperative pain | Postoperative pain will be measured with visual analog scale and numeric scale in the first 12 hours after the operation | Postoperative 12 hours: in the first 30 minutes after extubation, 1st hour, 6th hour and 12th hour |