We Have Two Groups. Both Groups Received a Deep Serratus Anterior Plane Block. One Group Had a Catheter for Continuous Infusion, While the Other Received IV Analgesics Postoperatively. Analgesic Effects Between the Two Groups Were Compared

The aim of this observational study is to compare the analgesic efficacy of continuous infusion via peripheral catheter versus single-shot serratus anterior plane block in women aged 18 to 80 undergoing breast-conserving surgery. The main questions it aims to answer are: Does continuous serratus anterior plane block via peripheral catheter provide superior postoperative analgesic efficacy compared to single-shot serratus anterior plane block? Second question is: Does continuous infusion via catheter in peripheral nerve blocks reduce the amount of intravenous analgesics consumed and improve patient comfort?

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Key information

Conditions

Pain Management After Surgery Regional Anaesthesia

Age range

18 year–80 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Göztepe Prof. Dr. Süleyman Yalçın Şehir Hastanesi

Istanbul, Kadıköy, 34722, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Female patients aged 18 to 80 years
Scheduled for breast-conserving surgery
Classified as American Society of Anesthesiologists (ASA) physical status I, II, or III

Exclusion criteria

Patients with coagulopathy
Patients with wounds or infections at the block site
Patients with known allergy to local anesthetic agents
Patients with mental retardation or limited cooperation
Patients who do not consent to participate in the study
Patients who, for any reason, discontinue participation during the course of the study

Treatment and study plan

Serratus Anterior Plane Block (SAPB) group

Procedure

The SAP block, which is among the chest wall blocks, provides its effect by blocking the lateral cutaneous branches of the T2-T9 intercostal nerves, n. intercostobrachial , n. longus thoracicus , n. thoracodorsal.

It has a wide range of use for postoperative pain management in trauma surgery, cardiac surgery, thoracic surgery and breast surgery.

Other names: serratus anterior plane block

DSAPB

Procedure

SAP block can be performed in two ways: superficial and deep. The deep SAP block is administered between the serratus anterior and intercostal muscles, at the intersection point of the anterior axillary line and the level of the nipple (at the level of the 4th-5th ribs). Following hydrodissection between the serratus anterior and intercostal muscles, a single-shot injection is administered. Subsequently, a peripheral nerve block catheter is placed in the same region under ultrasound guidance.

Other names: serratus anterior plane peripheral block cathather replacement

Primary outcomes

Numeric Rating Scale

Time frame: Until discharge after surgery, during an average hospital stay of approximately 24 hours.

1 - 10

1 is minimum pain 10 is maximum pain the lower scale is better for pain management.

Sponsors and collaborators

Lead sponsor

Istanbul Medeniyet University

Other

Registry information

Official study title

A Comparative Study on the Analgesic Efficacy of Ultrasound-Guided Continuous Catheter-Based Deep Serratus Anterior Plane Block Versus Single-Injection Deep Serratus Anterior Plane Block in Patients Undergoing Breast Surgery

Acronym: DSAPB

Important dates

Study start: 2025
Primary completion: 2025
Study completion: 2025
First posted: Jul 8, 2025
Registry last updated: Jul 10, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed