Pectoralis and Serratus Muscle Blocks
1 other identifier
interventional
210
1 country
1
Brief Summary
The overall research plan is PECS/SAP blocks with liposomal bupivacaine improve the Overall Benefit Analgesia Score averaged over the postoperative days 1, 2, and 3. A 20% reduction on geometric means (i.e., true ratio of geometric means of 0.80) in OBAS will be considered the minimal clinically important benefit.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Dec 2021
Shorter than P25 for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 31, 2018
CompletedFirst Posted
Study publicly available on registry
November 16, 2018
CompletedStudy Start
First participant enrolled
December 14, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 28, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
March 14, 2022
CompletedResults Posted
Study results publicly available
December 29, 2023
CompletedOctober 23, 2025
September 1, 2025
3 months
October 31, 2018
August 30, 2023
September 30, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Overall Benefit Analgesia Score
Our primary outcome, Overall Benefit Analgesia Score (OBAS), was measured daily by investigators blinded to treatment on postoperative Days 1 to 3.Potential scores of the seven-item questionnaire ranged from 0 to 28 points. Higher scores means worse conditions.
Postoperative day 1-3
Secondary Outcomes (4)
Cumulative Opioid Consumption Over Postoperative 3 Days
72 hours postoperative
Postoperative FEV1
Postoperatively day 1 -3
Postoperative FVC
Postoperative day 1 -3
Postoperative Peak Flow
Postoperative day 1-3
Study Arms (2)
Bupi HCl plus liposomal bupi
ACTIVE COMPARATORPectoral fascial plane or serratus anterior plane blocks (PECSII/SAP blocks) with bupivacaine HCl plus liposomal bupivacaine. An ultrasound guided pectoral fascial plane blocks (PECS I and II blocks) and Serratus anterior plane (SAP) block with injection of the local anesthetic.
Control Group
PLACEBO COMPARATORStandard parenteral analgesia technique with or without incisional local anesthetic infiltration: patients randomized to control group will be given parenteral opioids (such as fentanyl or hydromorphone) until they are converted to the enteral medications such as Percocet.
Interventions
The local anesthetic (LA) used for the PECS II or serratus plane blocks will be a 0.5% bupivacaine HCL, not to exceed 2.5mg/kg or up to 150mg. The LA solution can be diluted with preservative free normal saline for smaller patients to allow for appropriate volume of injection. Treatment patients will also be given liposomal bupivacaine (EXPAREL, Pacira Pharmaceuticals, Inc. San Diego, CA) in a dose of 266 mg in 20 ml can be safely combined with bupivacaine HCL at a ratio not exceeding 2:1, but cannot be combined with other local anesthetics due to the concern of rapid release of encapsulated bupivacaine and subsequent local anesthetic toxicity.
Patients randomized to standard analgesia technique will be given pain medications.
Eligibility Criteria
You may qualify if:
- years old;
- Elective minimally invasive robotically-assisted mitral valve repair via anterolateral thoracotomy
You may not qualify if:
- Weight less than 50 kg;
- Pregnancy or lactation;
- Emergency surgery and patients transferred from the ICU to the operating room;
- Redo cardiothoracic surgery or post-operative reoperation within 72 hours of index procedure (including minor chest wall procedures including tube thoracostomy, thoracentesis or percutaneous drain placement);
- Anticipated endotracheal intubation \> 24 hours;
- Anticipated non-study nerve block that provides analgesia to the intercostal nerves;
- Active systemic or cardiopulmonary infection;
- Mechanical circulatory support;
- Allergy or contraindication to study local anesthetics;
- Current chronic pain or routine opioid use (patients on chronic enteral opioids like Percocet or Vicodin) in a dose of \> 30 mg of morphine-milligram-equivalents for at least 10 days in last 30 days;
- Poorly controlled psychiatric disorders;
- Clinically important current neurologic deficit;
- Active liver disease or cirrhosis;
- Pacemaker generator or breast implants ipsilateral to surgery;
- Previous participation in this study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The Cleveland Clinic Foundation
Cleveland, Ohio, 44195, United States
Related Publications (1)
Alfirevic A, Marciniak D, Duncan AE, Kelava M, Yalcin EK, Hamadnalla H, Pu X, Sessler DI, Bauer A, Hargrave J, Bustamante S, Gillinov M, Wierup P, Burns DJP, Lam L, Turan A. Serratus anterior and pectoralis plane blocks for robotically assisted mitral valve repair: a randomised clinical trial. Br J Anaesth. 2023 Jun;130(6):786-794. doi: 10.1016/j.bja.2023.02.038. Epub 2023 Apr 11.
PMID: 37055276DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Xuan Pu
- Organization
- The Cleveland Clinic Foundation
Study Officials
- PRINCIPAL INVESTIGATOR
Andrej Alfirevic, MD
The Cleveland Clinic
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 31, 2018
First Posted
November 16, 2018
Study Start
December 14, 2021
Primary Completion
February 28, 2022
Study Completion
March 14, 2022
Last Updated
October 23, 2025
Results First Posted
December 29, 2023
Record last verified: 2025-09