NCT07247448

Brief Summary

The goal of this clinical trial is to to evaluate the analgesic efficacy of PECS II-PIFB versus SAPB for 24 hours in women aged from 18 to 65 years and scheduled for MRM. The main question it aims to answer is: which nerve block is better regarding the total analgesic consumption and the lowest postoperative complication

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P50-P75 for not_applicable

Timeline
6mo left

Started Oct 2025

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress54%
Oct 2025Nov 2026

Study Start

First participant enrolled

October 15, 2025

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

November 17, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

November 25, 2025

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2026

Last Updated

December 2, 2025

Status Verified

November 1, 2025

Enrollment Period

1 year

First QC Date

November 17, 2025

Last Update Submit

November 28, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • The analgesic efficacy of PECS II-PIFB versus SAPB in patients scheduled for MRM by the total analgesic consumption (nalbuphine in mg) during the first 24 hours.

    The analgesic efficacy of PECS II-PIFB versus SAPB in patients scheduled for MRM by the total analgesic consumption (nalbuphine in mg) during the first 24 hours.

    24 hours

Secondary Outcomes (1)

  • Post operative Pain Scores

    30 minutes, 1hours, 2hours, 4hours, 6hours, 8hours, 12hours and 24 hours

Study Arms (2)

PIFB-PECS II

ACTIVE COMPARATOR
Procedure: PECS II blockProcedure: PIFB

SAPB

ACTIVE COMPARATOR
Procedure: SAPB block

Interventions

PECS II blockPROCEDURE

Ultrasound-Guided PECS II Block With the patient in a supine position, her arm in a neutral position, and under complete aseptic technique, a 6 to 13 MHz ultrasound linear transducer probe (Mindray, Shen zhen, China) will be positioned below the distal one-third of the clavicle to visualize the pectoralis major and minor muscles, SAM, pectoral branch of the thoracoacromial artery, the second and third ribs, and the external intercostal muscles between the ribs. The needle will be inserted in-plane in a medial-to-lateral direction until its tip is placed between the SAM and the external intercostal muscles. The first injection will be done below the SAM using 20 mL bupivacaine 0.25% at the level of the second rib to block the intercostobrachial nerves and the lateral branches of the third to the sixth intercostal nerves. The needle will be withdrawn until its tip is placed between the pectoralis major and minor muscles, and an additional 10 mL of bupivacaine 0.25% will be injected.

PIFB-PECS II
SAPB blockPROCEDURE

Ultrasound-Guided Serratus Anterior Plane Block (SAPB) The probe will be placed on the mid-axillary line at the level of the fourth rib to visualize the serratus anterior and latissimus dorsi muscles. After establishing the correct level, the needle will be introduced in-plane. After puncturing the serratus muscle and contacting the rib, 40 mL of bupivacaine 0.25% will be deposited between the serratus muscle fascia and the rib periosteum, termed a deep serratus anterior plane block.

SAPB
PIFBPROCEDURE

Ultrasound-Guided PIFB Under complete aseptic technique with the patient in the supine position, a 6 to 13 MHz ultrasound linear transducer probe (Mindray, Shen zhen, China) will be placed 2 or 3 cm parallel to the long axis of the sternal bone to identify the second to fourth costal cartilages and targeting the fourth costal cartilage The needle will be inserted in-plane with the US probe, in a caudal-to-cranial direction. The needle will be advanced until the tip is positioned in the interfascial plane between the pectoralis major muscle and the intercostal muscle. After confirmation of the correct position of the tip of the needle, as shown by separation of the fascial layers on injecting 2 mL normal saline solution, 10 mL of bupivacaine 0.25% will be injected.

PIFB-PECS II

Eligibility Criteria

Age18 Years - 65 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients scheduled for elective MRM
  • Age 18-65 years
  • American Society of Anesthesiologists (ASA) physical state I-II

You may not qualify if:

  • Patient refusal.
  • Body Mass Index \> 30 kg/m2.
  • Skin infection at the site of injection.
  • History of renal, liver, cardiac, and neuropsychiatric disorder problems.
  • Bleeding or coagulation abnormality.
  • Known allergy to any drugs used in this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Assiut University

Asyut, Egypt

Location

Related Publications (24)

  • Patel LP, Sanghvi PR, Agarwal MB, Prajapati GC, Patel BM. Thoracic paravertebral block for analgesia after modified radical mastectomy. Indian J Pain 2014;28:160-165.

    RESULT
  • Misbah Mahmoud A., Said Ahmed A., Aly Salah A., Ahmed El-sayed N., Ali El Asser H., Mohamed Elsaed M. Ketamine Versus Dexmedetomidine as Adjuvants to Bupivacaine in Modified Pectoralis Plane Block for Analgesia in Patients Undergoing Modified Radical Mastectomy. Zagazig Univ Med J 2025.

    RESULT
  • Jamieson S. Likert scales: how to (ab)use them. Med Educ. 2004 Dec;38(12):1217-8. doi: 10.1111/j.1365-2929.2004.02012.x. No abstract available.

  • Karcioglu O, Topacoglu H, Dikme O, Dikme O. A systematic review of the pain scales in adults: Which to use? Am J Emerg Med. 2018 Apr;36(4):707-714. doi: 10.1016/j.ajem.2018.01.008. Epub 2018 Jan 6.

  • Hu NQ, He QQ, Qian L, Zhu JH. Efficacy of Ultrasound-Guided Serratus Anterior Plane Block for Postoperative Analgesia in Patients Undergoing Breast Surgery: A Systematic Review and Meta-Analysis of Randomised Controlled Trials. Pain Res Manag. 2021 Oct 25;2021:7849623. doi: 10.1155/2021/7849623. eCollection 2021.

  • Hozien AI, Helmy AM, Koptan HM, Elfeil YE, Yakout MMS, Elwafa HBAA. Analgesic Effect of Addition of Pectointercostal Block to Serratus Anterior Plane Block in Breast Surgeries: A Randomized, Controlled Trial. Pain Physician. 2023 Oct;26(6):E679-E685.

  • Jayadeep I, Srinivasan G, Sethuramachandran A, Elakkumanan LB, Swaminathan S, Bidkar P. Comparison of the Analgesic Efficacy of Ultrasound-Guided Superficial Serratus Anterior Plane Block With Deep Serratus Anterior Plane Block in Patients Undergoing Modified Radical Mastectomy: A Randomized Clinical Trial. Cureus. 2022 Oct 29;14(10):e30828. doi: 10.7759/cureus.30828. eCollection 2022 Oct.

  • Faul F, Erdfelder E, Lang AG, Buchner A. G*Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods. 2007 May;39(2):175-91. doi: 10.3758/bf03193146.

  • Woodworth GE, Ivie RMJ, Nelson SM, Walker CM, Maniker RB. Perioperative Breast Analgesia: A Qualitative Review of Anatomy and Regional Techniques. Reg Anesth Pain Med. 2017 Sep/Oct;42(5):609-631. doi: 10.1097/AAP.0000000000000641.

  • Hong B, Yoon SH, Youn AM, Kim BJ, Song S, Yoon Y. Thoracic interfascial nerve block for breast surgery in a pregnant woman: a case report. Korean J Anesthesiol. 2017 Apr;70(2):209-212. doi: 10.4097/kjae.2017.70.2.209. Epub 2017 Jan 12.

  • Lopez-Matamala B, Fajardo M, Estebanez-Montiel B, Blancas R, Alfaro P, Chana M. A new thoracic interfascial plane block as anesthesia for difficult weaning due to ribcage pain in critically ill patients. Med Intensiva. 2014 Oct;38(7):463-5. doi: 10.1016/j.medin.2013.10.005. Epub 2013 Nov 26. No abstract available.

  • de la Torre PA, Garcia PD, Alvarez SL, Miguel FJ, Perez MF. A novel ultrasound-guided block: a promising alternative for breast analgesia. Aesthet Surg J. 2014 Jan 1;34(1):198-200. doi: 10.1177/1090820X13515902. No abstract available.

  • Wijayasinghe N, Andersen KG, Kehlet H. Analgesic and Sensory Effects of the Pecs Local Anesthetic Block in Patients with Persistent Pain after Breast Cancer Surgery: A Pilot Study. Pain Pract. 2017 Feb;17(2):185-191. doi: 10.1111/papr.12423. Epub 2016 Feb 9.

  • Bashandy GM, Abbas DN. Pectoral nerves I and II blocks in multimodal analgesia for breast cancer surgery: a randomized clinical trial. Reg Anesth Pain Med. 2015 Jan-Feb;40(1):68-74. doi: 10.1097/AAP.0000000000000163.

  • Perez MF, Duany O, de la Torre PA. Redefining PECS Blocks for Postmastectomy Analgesia. Reg Anesth Pain Med. 2015 Nov-Dec;40(6):729-30. doi: 10.1097/AAP.0000000000000243. No abstract available.

  • Dieguez P, Casas P, Lopez S, Fajardo M. Ultrasound guided nerve block for breast surgery. Rev Esp Anestesiol Reanim. 2016 Mar;63(3):159-67. doi: 10.1016/j.redar.2015.11.003. Epub 2016 Jan 6. English, Spanish.

  • Blanco R, Fajardo M, Parras Maldonado T. Ultrasound description of Pecs II (modified Pecs I): a novel approach to breast surgery. Rev Esp Anestesiol Reanim. 2012 Nov;59(9):470-5. doi: 10.1016/j.redar.2012.07.003. Epub 2012 Aug 29.

  • Blanco R. The 'pecs block': a novel technique for providing analgesia after breast surgery. Anaesthesia. 2011 Sep;66(9):847-8. doi: 10.1111/j.1365-2044.2011.06838.x. No abstract available.

  • Naja MZ, Ziade MF, Lonnqvist PA. Nerve-stimulator guided paravertebral blockade vs. general anaesthesia for breast surgery: a prospective randomized trial. Eur J Anaesthesiol. 2003 Nov;20(11):897-903. doi: 10.1017/s0265021503001443.

  • Lynch EP, Welch KJ, Carabuena JM, Eberlein TJ. Thoracic epidural anesthesia improves outcome after breast surgery. Ann Surg. 1995 Nov;222(5):663-9. doi: 10.1097/00000658-199511000-00009.

  • Huang TT, Parks DH, Lewis SR. Outpatient breast surgery under intercostal block anesthesia. Plast Reconstr Surg. 1979 Mar;63(3):299-303. doi: 10.1097/00006534-197903000-00001.

  • Talbot H, Hutchinson SP, Edbrooke DL, Wrench I, Kohlhardt SR. Evaluation of a local anaesthesia regimen following mastectomy. Anaesthesia. 2004 Jul;59(7):664-7. doi: 10.1111/j.1365-2044.2004.03795.x.

  • Liu N, Kuhlman G, Dalibon N, Moutafis M, Levron JC, Fischler M. A randomized, double-blinded comparison of intrathecal morphine, sufentanil and their combination versus IV morphine patient-controlled analgesia for postthoracotomy pain. Anesth Analg. 2001 Jan;92(1):31-6. doi: 10.1097/00000539-200101000-00007.

  • Wang L, Guyatt GH, Kennedy SA, Romerosa B, Kwon HY, Kaushal A, Chang Y, Craigie S, de Almeida CPB, Couban RJ, Parascandalo SR, Izhar Z, Reid S, Khan JS, McGillion M, Busse JW. Predictors of persistent pain after breast cancer surgery: a systematic review and meta-analysis of observational studies. CMAJ. 2016 Oct 4;188(14):E352-E361. doi: 10.1503/cmaj.151276. Epub 2016 Jul 11.

MeSH Terms

Conditions

Agnosia

Condition Hierarchy (Ancestors)

Perceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Mohammad Mahmoud Shaker, Bachelor's

    Assiut University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Patients: 70 patients will be enrolled in this study. They will be equally divided into two groups: Group A (PIFB-PECS II): 35 patients will receive 40 mL of 0.25% bupivacaine. * PECS II block divided into 2 injections. 1. 10 ml between the pectoralis major and pectoralis minor 2. 20 ml between the pectoralis minor and stratus anterior muscle * PIFB 10 mL between the pectoralis major and the intercostal muscle. Group B (Serratus plane block): 35 patients will receive 40 mL of 0. 25% bupivacaine.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Resident doctor at Anesthesia, Intensive Care and Pain Management

Study Record Dates

First Submitted

November 17, 2025

First Posted

November 25, 2025

Study Start

October 15, 2025

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2026

Last Updated

December 2, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will share

De-identified individual participant data (IPD) underlying the results of this study will be made available to researchers upon reasonable request from the corresponding author after the publication of results, for a period of one year. The shared data will include anonymized variables relevant to the primary and secondary outcomes

Locations