Comparative Study Between the Efficacy of The Serratus Anterior Plane Block and Lumbar Intrathecal Fentanyl Injection for Postoperative Analgesia After Modified Radical Mastectomy

February 6, 2023 updated by: Ahmed Mohamed Nozahy, Sohag University

Modified radical mastectomy (MRM) is one of the most common surgeries performed, and one that may be associated with significant acute postoperative pain in breast surgery. Acute postoperative pain is an independent risk factor in the development of chronic post-mastectomy pain .

Various regional anesthetic procedures have been tried to provide better acute pain control and, consequently, less chronic pain. They can reduce perioperative opiates requirement and thereby decreasing their possible side effects. These regional procedures include local wound infiltration, lumbar intrathecal fentanyl injection, thoracic epidural, thoracic paravertebral block (PVB), and ultrasound (US)-guided interfascial plane blocks. Currently, Ultrasound (US)-guided interfascial plane blocks have been recommended as safe, easy, and reliable alternatives to the use of thoracic epidural and paravertebral blocks in providing analgesia for patients about to undergo breast surgery.

Serratus anterior plane block (SAPB) is one of the Ultrasound (US)-guided interfascial plane blocks, it blocks the intercostal nerves II-VI by injection above or below the serratus muscle in the mid-axillary line and spares the pectoral nerves.

We assumed that SAPB could safely provide a better analgesic profile with an opioid-sparing effect than Intrathecal fentanyl. We will perform this study to evaluate this assumption.

Study Overview

Study Type

Interventional

Enrollment (Actual)

50

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Sohag, Egypt
        • Sohag University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 50 patients with American Society of Anesthesiologists (ASA) grade I to II, 18 to 60 years of age scheduled for Modified Radical Mastectomy surgery

Exclusion Criteria:

  • Patient refusal.
  • Patient with significant neurological , psychiatric or neuromuscular disease
  • Alcoholism .
  • Drug abuse .
  • Pregnancy or lactating women .
  • Suspected Coagulopathy .
  • Morbid obesity .
  • Known allergy to study medications .
  • Septicaemia and local infection at the block site.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: SUPPORTIVE_CARE
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Group B
Patients will receive 25 microgram intracthecal fentanyl immediately preoperative.
ACTIVE_COMPARATOR: Group A
SAPB will be done preoperative before induction of anesthesia under songraphic guidance and aseptic conditions with the patient in the lateral position, with the side of the surgical side up and the upper limb hanging over the patient's head. The ribs will be then counted, and when the 5th rib is identified, the high-frequency probe will be put over it, in the mid-axillary line in a sagittal plane. The ribs, pleura, overlying serratus muscle and latissimus dorsi muscle will be identified, and the needle will be advanced cephalic in-plane until the tip reaches the plane between the serratus anterior and latissimus dorsi. Afterward, 2 mL dextrose 5% will be injected; then, 30 mL of bupivacaine 0.25% will be injected in the plane between the serratus anterior and latissimus dorsi.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
analgesic effect of serratus anterior plane block and lumbar intrathecal fentanyl injection after modified radical mastectomy
Time Frame: 1 year

compare the analgesic effect between serratus anterior plane block and lumbar intrathecal fentanyl injection by using visual analogue score (vas).

-Postoperative pain will be assessed using visual analog score (VAS) [0-10]. 0 - 3 mild pain 4 - 6 moderate pain 7 - 10 severe pain 10 <unbearable pain)

1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hemodynamics effects of serratus anterior plane block and lumbar intrathecal fentanyl injection in patient undergoing modified radical mastectomy
Time Frame: 1 year

compare between serratus anterior plane block and lumbar intrathecal fentanyl injection as regard, hemodynamics of patient undergoing modified radical mastectomy.

-The heart rate (HR), noninvasive arterial systolic blood pressure (SBP), diastolic blood pressure (DBP) and peripheral oxygen saturation (SpO2) will be recorded at baseline, after induction and with skin incision and every 5 minutes intraoperative till the end of surgery. And postoperative at 30 min, 1, 2, 3, 6, 12 and 24 hours.

1 year
Intra venous analgesics consumption after serratus anterior plane block and lumbar intrathecal fentanyl injection in patient undergoing modified radical mastectomy
Time Frame: one year

compare between serratus anterior plane block and lumbar intrathecal fentanyl injection in patient undergoing modified radical mastectomy as regard intra venous analgesics consumption.

All patients will receive paracetamol (15mg/KG/dose) immediately postoperative and after 6 hours. Patients will be assessed every one hour in the first 6 hours then every 3 hours in the next 18 hours.

Patients will receive ketorolac 30 mg if VAS 3-5 . If VAS>5 ,morphine 0.1mg/kg will be given then total ketorolac and morphine consumption in 24 hours will be calculated and compared between both groups .

one year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

April 1, 2022

Primary Completion (ACTUAL)

February 1, 2023

Study Completion (ACTUAL)

February 1, 2023

Study Registration Dates

First Submitted

April 17, 2022

First Submitted That Met QC Criteria

April 24, 2022

First Posted (ACTUAL)

April 28, 2022

Study Record Updates

Last Update Posted (ACTUAL)

February 8, 2023

Last Update Submitted That Met QC Criteria

February 6, 2023

Last Verified

February 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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