Effect of Pectoral Nerve Block on Post-op Pain in Patients Undergoing Mastectomy and Immediate Reconstruction

September 22, 2016 updated by: Jeannie Shen, Huntington Memorial Hospital

Pectoral Nerve Block vs. Standard Anesthesia in Patients Undergoing Mastectomy and Immediate Breast Reconstruction: Impact on Post-operative Pain and Nausea/Vomiting

Patients undergoing total mastectomy with immediate breast reconstruction with a tissue expander or implant under general anesthesia will be randomly assigned to the addition of a pectoral nerve block or no regional block. Post-operative pain, nausea/vomiting scores will be assessed.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Patients undergoing total mastectomy with immediate breast reconstruction with a tissue expander or implant under general anesthesia will be randomly assigned to the addition of a pectoral nerve block or no regional block after induction of general anesthesia and prior to the start of surgery. Post-operative pain scores and post-operative pain medication usage will be recorded. Post-operative nausea/vomiting scores and post-op anti-emetic medication usage will be recorded. The clinical impact of pectoral nerve block on this expanding population of patients will be determined.

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Phase 2

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

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 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  1. Patients age 18-90 years old
  2. Subjects able to read and understand the informed consent
  3. American Society of Anesthesiologists (ASA) physical status I and II

  4. Subjects scheduled to undergo unilateral or bilateral mastectomy with immediate breast reconstruction with submuscular placement of tissue expander or permanent implant under general anesthesia, including:

    • subjects diagnosed with breast cancer
    • subjects diagnosed with atypia or other high risk proliferative breast disease
    • subjects with a family history who are considered at high risk for breast cancer (including those with hereditary or genetic predisposition)

Exclusion Criteria:

  1. Subjects unable to read or understand the informed consent
  2. ASA physical status III or IV
  3. Subjects with an allergy to local anesthetic
  4. Subjects with a medical contraindication to regional anesthetic, such as coagulopathy or local infection
  5. Subjects with a pre-existing submuscular implant
  6. Subjects scheduled to undergo mastectomy with myocutaneous flap reconstruction
  7. Subjects scheduled to undergo mastectomy without immediate reconstruction
  8. Subjects with a history of chronic pain or chronic opioid use

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: GA + Pec Block
Following induction of general anesthesia, the patients in the intervention group will undergo an ultrasound-guided pectoral block. With the patient in proper position, the infraclavicular and axillary regions are prepped with chlorhexidine. An US probe is placed below the third of the clavicle over the pectoralis major muscle. After identifying the appropriate anatomical structures, a 21-gauge echogenic needle is advanced under US visualization to the tissue plane between the pectoral major and pectoral minor muscles where the lateral and medial pectoralis nerves lie and 15 mL of 0.25% bupivacaine will be deposited. In a similar manner, 20 mL of 0.25% bupivacaine will be deposited under ultrasound-guidance at the level of the third rib above the serratus anterior muscle.
Device: Ultrasound
Pectoral nerve block is a regional block administered under ultrasound guidance which blocks the nerves of the thorax and chest areas.
Drug: 0.25% bupivacaine
Pectoral nerve block is a regional block administered under ultrasound guidance where 15 mL of 0.25% bupivacaine is instilled between the pectoral major and pectoral minor muscles where the lateral and medial pectoralis nerves lie. In a similar manner, 20 mL of 0.25% bupivacaine will be deposited under ultrasound-guidance at the level of the third rib above the serratus anterior muscle.
Other Names:
  • 0.25% Marcaine
No Intervention: GA only
Patients will receive standard general anesthesia.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Post-op pain
Time Frame: within first 48 hours
post-op pain assessed by Visual Analog Scale
within first 48 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Post-op nausea/vomiting
Time Frame: within first 48 hours
post-op nausea/vomiting score assessed on standard scale
within first 48 hours

Collaborators and Investigators

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

Sponsor

Huntington Memorial Hospital

Investigators

  • Principal Investigator: Jeannie Shen, MD, Huntington Memorial Hospital

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.

General Publications

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

September 1, 2016

Primary Completion (Anticipated)

September 1, 2018

Study Completion (Anticipated)

March 1, 2019

Study Registration Dates

First Submitted

September 19, 2016

First Submitted That Met QC Criteria

September 22, 2016

First Posted (Estimate)

September 23, 2016

Study Record Updates

Last Update Posted (Estimate)

September 23, 2016

Last Update Submitted That Met QC Criteria

September 22, 2016

Last Verified

September 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 31801/1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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