Comparison of Deep Serratus Anterior Plane Block and Combination of Deep and Superficial Serratus Anterior Plane Block

Comparison of the Effects of Ultrasound-Guided Deep Serratus Anterior Plane Block and Combination of Deep and Superficial Serratus Anterior Plane Block on Postoperative Acute Pain in Patients Undergoing Video-Assisted Thoracoscopic Surgery

Video-assisted thoracic surgery (VATS) has become a common procedure in thoracic surgery. Severe postoperative pain may be encountered in patients undergoing VATS. Analgesic methods such as thoracic paravertebral block (TPVB), intercostal block, serratus anterior plane block (SAPB) and erector spina plane block (ESPB) are widely used for VATS. Among these methods, ultrasound (US) guided TPVB is the most preferred method. In recent years, the frequency of application of plane blocks as a component of multimodal analgesia has been increased. ESPB and SAPB are some of them. There are two techniques for SAPB application. In Deep SAPB (DSAPB) application, local anesthetic agent is given under the serratus anterior muscle. In the Superficial SAPB (SSAPB) application, the local anesthetic agent is given above the serratus anterior muscle. Since it is done by entering from the same point in two applications, it is possible to perform these two applications at the same time with a single needle entry. The mechanisms of regional analgesia techniques used after thoracic surgery operations are also different from each other. Therefore, it may be possible to obtain a more effective analgesic effect in patients by combining the mechanism of action of DSAPB and SSAPB , as in the multimodal analgesia method. This study seeks to evaluate the effect of DSAPB and combined DSAPB-SSAPB pain after VATS.

Study Overview

• Status: Completed
• Conditions: Pain, Postoperative; Serratus Anterior Plane Block; Thoracic Surgery, Video-Assisted; Multimodal Analgesia
• Intervention / Treatment: Procedure: Deep block and Combined Block

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Turkey
  • Ankara
    • Kecioren, Ankara, Turkey, 06000
      • Ankara Atatürk Chest Disease and Chest Surgery Training and Research Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• 18 to 65 years old
• ASA physical status I-II-III
• BMI 18 to 30 kg/m2
• Elective video assisted thoracoscopic surgery

Exclusion Criteria:

• Patient refusing the procedure
• Emergency surgery
• Chronic opioid or analgesic use

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Deep and Superficial Serratus Anterior Plane Block; In patients who are planned to have combined deep and superficial serratus anterior plane block, following the visualization of the anatomical structures, the nerve block needle will be advanced via the in-plane technique beneath the serratus anterior muscles until the interfascial space was reached. After hydrodissection with 2 ml normal saline, 10 ml 0.25% bupivacaine will be injected into the area. Then, with the same needle, will be returned 1-2 cm from the deep serratus anteror area to superficial serratus anteror area above the serratus anterior muscle and will be injected 2 ml normal saline for hydrodissection. Finally 10 ml of 0.25% bupivacaine will be injected for superficial serratus anetrior block into the interfacial area.	Procedure: Deep block and Combined Block; Deep serratus anterior block and combined deep and superficial serratus anterior plane block will be applied to the patients under real-time ultrasound guidance.
Active Comparator: Deep Serratus Anterior Plane Block; Following the visualization of the anatomical structures, the nerve block needle will be advanced via the in-plane technique beneath the serratus anterior muscles until the interfascial space was reached. After hydrodissection with 2 ml normal saline, 20 ml 0.25% bupivacaine will be injected into the area.	Procedure: Deep block and Combined Block; Deep serratus anterior block and combined deep and superficial serratus anterior plane block will be applied to the patients under real-time ultrasound guidance.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pain Scores	Pain will be assessed at rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 10 (worst pain). Pain assessment will be done at 1st, 2nd, 4th, 8th, 16th, 24th and 48th hours after surgery.	48 hours after surgery

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Morphine Consumption	Morphine consumption for 24 hours will be recorded	24 hours after surgery

Collaborators and Investigators

• Sponsor: Atatürk Chest Diseases and Chest Surgery Training and Research Hospital

Study record dates

Study Major Dates

• Study Start (Actual): October 22, 2021
• Primary Completion (Actual): July 20, 2022
• Study Completion (Actual): August 23, 2022

Study Registration Dates

• First Submitted: October 22, 2021
• First Submitted That Met QC Criteria: October 22, 2021
• First Posted (Actual): November 3, 2021

Study Record Updates

• Last Update Posted (Actual): August 25, 2022
• Last Update Submitted That Met QC Criteria: August 23, 2022
• Last Verified: August 1, 2022

More Information

Terms related to this study

• Keywords: Serratus Anterior Plane Block, Multimodal Analgesia, VATS
• Additional Relevant MeSH Terms: Pathologic Processes; Postoperative Complications; Pain; Neurologic Manifestations; Pain, Postoperative
• Other Study ID Numbers: E.Kurul-E1-21-2066

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No