- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04895397
Modified Pectoral Nerve Block Versus Serratus Plane Block
Modified Pectoral Nerve Block Versus Serratus Plane Block for Analgesia After Breast Cancer Surgeries
In PECSII or modified PECSI block, local anesthetic (LA) is injected between pectoralis major muscle (PMm) and pectoralis minor muscle (Pmm) to block lateral and medial pectoral nerves and between pectoralis minor muscle (Pmm) and serratus anterior muscle in the anterior axillary line to block the intercostal nerves II-VI (Blanco et al., 2012).
In Serratus anterior plane block (SAPB) local anesthetic (LA) is injected above the serratus muscle (between latissmus dorsi muscle and serratus muscle) or below the serratus muscle (between serratus muscle and 4th rib) in the mid-axillary line to block the intercostal nerves II-VI and spares the pectoral nerves (Blanco et al., 2013).
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
One hour before induction of anesthesia 4ml blood sample will be taken from all patient to measure serum cortisol and serum endorphin level 2ml for each.
General anesthesia will be induced for all patients in both groups using the same protocol.
Anesthesia will be induced with propfol (2-3 mg/kg), IV rocuroniom (.5 - .8 mg/kg) to facilitate endotracheal intubation. Anesthesia will be maintained with isoflurane (1-2 mac) in 100% oxygen.
All patients will be intubated and mechanically ventilated using volume controlled positive pressure ventilation with a tidal volume of 6-8 ml/kg and an inspiratory to expiratory ratio of 1:2 targeting end tidal carbon dioxide tension around 35mmhg.
Basic monitoring for all patients include under pulse oximetry, non-invasive blood pressure, 5 lead electrocardiogram and end tidal carbon dioxide monitoring.
In group A patients, an ultrasound guided modified pectoral nerve block will be performed after induction of general anesthesia. Under sterile conditions, US-guided PECSII block will be on the same side of surgery with the patient lying in the supine position with the ipsilateral arm abducted and externally rotated, and the elbow flexed 90°. The 6-13 MHz linear probe will be put transversely in the ipsilateral clavipectoral triangle - between the clavicle medially and above and the shoulder joint laterally.
After identification of the Pectoralis major muscle, Pectoralis minor muscle and the plane in between, the probe will be tilted caudally to identify the pulsating pectoral branch of the thoracoacromial artery, if not identified, the probe will be moved 1-2 cm caudally and medially. In a caudal tilt, the artery will be easily identified in a biconvex space.
The skin at the point of entry was infiltrated using lidocaine 1%; then, the needle (disposable spinal needle, K-3 point type LUER-Lock HUB 22G) will be advanced in an in-plane technique targeting the space in which the artery is located. Two mL of saline 0.9% will be injected to confirm the location, produce hydro-dissection, and improve needle visualization. Afterward, 10 mL of bupivacaine, 0.25%, will be injected.
Then, the probe will be moved laterally and caudally towards the anterior axillary fold, parallel to the deltopectoral groove, until the serratus muscle appears underneath the Pectoralis minor muscle attached to the underlying ribs.
The 3rd, fourth ribs and the pleura will be then identified. After infiltration of the skin with lidocaine 1%, the needle will be advanced in-plane targeting the plane between the pectoralis minor muscle and serratus. Two mL of saline 0.9% will be injected; then, 10 mL of bupivacaine 0.25% will be injected.
Group B: In SAPB Group, a US-guided serratus block will be done 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 4th rib will be identified, the high-frequency probe will be put over it, in the mid-axillary line in a sagittal plane.
The ribs, pleura, and overlying serratus muscle will be identified, and the needle will be advanced cephalad in-plane until the tip touched the 4th rib. Afterward, 2 mL saline 0.9% will be injected; then, 20 mL of bupivacaine 0.25% will be injected in the plane between the serratus and the 4th rib.
At the end of the surgery, the muscle relaxant will be reversed using neostigmine (0.04 mg/kg) and atropine (0.01 mg/kg). After fully awake extubation, all patients will be transferred to the post-anesthesia care unit (PACU).
Two hour post-operative 4ml blood sample will be taken from all patients to measure serum cortisol and serum endorphin level 2ml for each.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: mohammed hussein, lecturer
- Phone Number: 01005872429
- Email: mohamedhussin@med.sohag.edu.eg
Study Contact Backup
- Name: mohamed hussein, lecturer
- Phone Number: 01005872429
- Email: mohamedhussin@med.sohag.edu.eg
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Breast cancer surgery.
- Age 20 to 60 years.
- Female patients.
- At least 24 hours post-operative hospital admission.
- ASA (American society of anesthesiologist) physical status classification system І to Ш.
Exclusion Criteria:
• Morbid obesity (body mass index > 40).
- Impossibility of anatomical structures identification by ultrasound in a satisfactory way (there can be no distinction in the interfacial plan between serratus and pectoral muscle).
- Opioids treatment before surgery or substance abuse.
- Sepsis and/or infection at the puncture site.
- Hemostasis disorders.
- Allergy to any of the drugs used in the study.
- Less than 24 hours postoperative hospital admission.
- Inability to communicate with the patient.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Group A: (30 patients)
modified pectoral nerve block will be done.
|
In group A patients, an ultrasound guided modified pectoral nerve block will be performed Under sterile conditions, US-guided PECSII block will be on the same side of surgery . The 6-13 MHz linear probe will be put transversely in the ipsilateral clavipectoral triangle - between the clavicle medially and above and the shoulder joint laterally. the needle will be advanced in an in-plane technique targeting the space in which the artery is located. Afterward, 10 mL of bupivacaine, 0.25%, will be injected. the needle will be advanced in-plane targeting the plane between the pectoralis minor muscle and serratus. Two mL of saline 0.9% will be injected; then, 10 mL of bupivacaine 0.25% will be injected. Group B: In SAPB Group, a US-guided serratus block will be done The ribs will be then counted, and when the 4th rib will be identified, the high-frequency probe will be put over it, in the mid-axillary line in a sagittal plane. |
Active Comparator: Group B: (30 patients)
serratus plane block will be done.
|
In group A patients, an ultrasound guided modified pectoral nerve block will be performed Under sterile conditions, US-guided PECSII block will be on the same side of surgery . The 6-13 MHz linear probe will be put transversely in the ipsilateral clavipectoral triangle - between the clavicle medially and above and the shoulder joint laterally. the needle will be advanced in an in-plane technique targeting the space in which the artery is located. Afterward, 10 mL of bupivacaine, 0.25%, will be injected. the needle will be advanced in-plane targeting the plane between the pectoralis minor muscle and serratus. Two mL of saline 0.9% will be injected; then, 10 mL of bupivacaine 0.25% will be injected. Group B: In SAPB Group, a US-guided serratus block will be done The ribs will be then counted, and when the 4th rib will be identified, the high-frequency probe will be put over it, in the mid-axillary line in a sagittal plane. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
assess analgesic effect of nerve block
Time Frame: 24hour post-operative
|
We assess the analgesic effect by VAS ( visual analogue scale )
|
24hour post-operative
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: mohammed hussein, lecturer, Sohag University
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- soh-Med-21-02-05
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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