Ultrasound-guided Deep and Superficial Serratus Anterior Plane Block

Kyungpook National University

Status: Unknown

Conditions: Thoracotomy; Pain Management

Treatments: Procedure: Deep Serratus Anterior Plane Block; Procedure: Superficial Serratus Anterior Plane Block

Study type: Interventional

Funder types: Other

Identifiers

NCT04252378

2019-05-003-001

Details and patient eligibility

About

This study evaluates the difference of deep and superficial serratus anterior plane block on intraoperative opioid consumption, emergence time and hemodynamic stability in patients undergoing video-assisted thoracic surgery.

Full description

Thoracotomy is known as one of the most painful surgery. Thus, there is a development to reduce surgical stress in terms of operation technique, which is video-assisted thoracoscopic surgery. Although it has reduced postoperative pain and complications compared with thoracotomy, VATS is still quite painful operation. Serratus plane block is a novel technique which provide analgesic effect for lateral chest wall by blocking lateral branch of intercostal nerve. Two methods were proposed to target the top and bottom of the serratus anterior muscle. However, the difference of deep and superficial serratus anterior plane block during intraoperative period has not yet been studied.

In this study, therefore, the investigators decided to assess the difference of deep and superficial serratus anterior plane block on intraoperative opioid consumption, emergence time and hemodynamic stability in patients undergoing video-assisted thoracic surgery.

Enrollment: 56 estimated patients

Sex: All

Ages: 20 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• a) American Society of Anesthesiologists (ASA) physical status 1 or 2
• b) age 20-75 years
• c) elective three port Video-assisted thoracoscopic surgery (VATS) lobectomy.

Exclusion criteria

• a) a history of drug allergy for opioids or local anesthetics
• b) local infection at the injection site and systemic infection
• c) coagulopathy
• d) difficulty in understanding the study protocol
• e) refusal to participate

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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56 participants in 2 patient groups

Deep Serratus Anterior Plane Block

Experimental group

Description:

Deep Serratus Anterior Plane Block was performed just before the start of surgery after anesthetic induction through ultrasound-guidance. 20ml of 0.375% ropivacaine was slowly injected between the fascia of serratus anterior and external intercostal muscle near 5th rib.

Treatment:

Procedure: Deep Serratus Anterior Plane Block

Superficial Serratus Anterior Plane Block

Active Comparator group

Description:

Superficial Serratus Anterior Plane Block was performed just before the start of surgery after anesthetic induction through ultrasound-guidance. 20ml of 0.375% ropivacaine was slowly injected between the fascia of serratus anterior and latissimus dorsi near 5th rib.

Treatment:

Procedure: Superficial Serratus Anterior Plane Block