Evaluation of Dermatomal Distribution in the Erector Spinae Plane (ESP) Block

Study Overview
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Brief Summary
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Interventional study that evaluate dermatomal distribution and its demographic determinants in patients who underwent to Erector Spinae Plane (ESP) block

Detailed Description
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Interventional study that evaluate dermatomal distribution with pinprick and cold, and its demographic determinants in patients who underwent to Erector Spinae Plane (ESP) block with 20 ml of bupivacaine 0.5% at the thoracic level in patients with pain in the thorax and upper abdomen.

Official Title
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Evaluation of Dermatomal Distribution in the Erector Spinae Plane (ESP) Block

Conditions
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Pain, Chronic, Pain, Postoperative

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: Patients older than 18 years, in the acute / chronic pain service that presents pain in the thoracic region and / or upper hemiabdomen. Exclusion Criteria: Women in pregnancy Patients with less than 50 Kg of weight Dissent of informed consent

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 90 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
Intervention Model: Single Group Assignment
Interventional Model Description: Assignment interventional
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Erector Spinae Plane Block<br>Patients with chest pain or upper abdomen underwent Erector Spinae Plane Block guided by ultrasound, bupivacaine 0.5% 20 ml was administered in the interfascial plane between the transverse process of T5 and the erector muscles of the spine, 60 minutes after dermatomes distribution was evaluated with pinprick and cold. | Procedure: Erector Spinae Plane Block<br>* In patients with chest pain, ultrasound-guided Erector Spinae Plane Block block was performed at T5 transverse process in the cephalo-caudal direction with Tuohy 18 gauge needle in plane until the needle tip was located in the interfascial plane between the transverse process and the erector spinae muscles, 20 ml of bupivacaine 0.5% was administered and a catheter was inserted if indicated.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Dermatomes with sensitive block | Number (average) of dermatomes with sensitive block with pinprick and cold achieved at 60 minutes after the Erector Spinae Plane (ESP) block with 20 ml of bupivacaine 0.5%. Also, observe the distribution pattern. | 60 minutes | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| weight | weight in kilograms and its correlation with the main result The variables were grouped in means (standard deviation) for continuous variables and frequencies (percentages) for categorical variables. | 60 minutes | 
| Adverse events | Frequency of adverse events (hypotension, pneumothorax, neurological deficit, bradycardia) after the Erector Spinae Plane (ESP) block. | 60 minutes and 24 hours | 
| Success rate | Success rate (Blocking of at least 2 continuous dermatomes at the puncture site measured with pinprick and cold) | 60 minutes and 24 hours | 
| Degree of satisfaction | Degree of satisfaction evaluated with the Likert scale of 4 points (1 dissatisfied, 2 slightly dissatisfied, 3 slightly satisfied, 4 satisfied). | 60 minutes and 24 hours | 
| Visual Analogue Scale (VAS) | Change From Baseline in Pain Scores on the Visual analogue scale (VAS) from 1 to 10 at 60 minutes and 24 hours after the ESP block. | 60 minutes and 24 hours | 
| Height | Height in meters and its correlation with the main result The variables were grouped in means (standard deviation) for continuous variables and frequencies (percentages) for categorical variables. | 60 minutes | 
| Age | Age in years and its correlation with the main result The variables were grouped in means (standard deviation) for continuous variables and frequencies (percentages) for categorical variables. | 60 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Erector Spinae Plane, Erector Spinae Plane Block