The Effect of Liposomal Bupivacaine Erector Spinae Plane Block
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Liposomal bupivacaine plus bupivacaine hydrochloride, Bupivacaine hydrochloride monotherapy.
- Who it may be relevant to
- Registry conditions: Liposome Bupivacaine, Erector Spinae Plane Block, Postoperative Analgesia, Randomized Controlled Trial. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
The Effect of Liposomal Bupivacaine Erector Spinae Plane Block on Postoperative Pain in Patients Undergoing Open Upper Abdominal Surgery: A Randomized, Controlled, Double-Blind Trial
Overview
This is a single-center, randomized, controlled, double-blind clinical trial. A total of 148 patients undergoing elective open upper abdominal surgery will be included and randomly assigned 1:1 to receive ultrasound-guided erector spinae plane block with liposome bupivacaine plus bupivacaine hydrochloride or bupivacaine hydrochloride alone. The primary outcome is the AUC of resting pain scores from 0 to 72 hours postoperatively. This study aims to evaluate the analgesic efficacy and safety of liposome bupivacaine and provide a long-acting and safe postoperative analgesia strategy.
Interventions
- Drug Liposomal bupivacaine plus bupivacaine hydrochloride
This intervention uses a combination of liposomal bupivacaine and standard bupivacaine hydrochloride for T7 bilateral erector spinae plane block. The liposomal formulation provides prolonged local analgesic effect, which differentiates it from the control intervention that uses only conventional bupivacaine hydrochloride without long-acting liposomal components. - Drug Bupivacaine hydrochloride monotherapy
This intervention adopts single-agent conventional bupivacaine hydrochloride for bilateral T7 erector spinae plane block, without adding liposomal bupivacaine. It serves as the conventional analgesia regimen and is different from the combined regimen supplemented with long-acting liposomal bupivacaine in the experimental group.
Primary outcome measures
- AUC of resting pain score within 0-72 hours after operation [Time frame: Postoperative 0 to 72 hours]
Secondary outcome measures (5)
- Postoperative adverse reaction incidence [Time frame: Postoperative 0-72 hours]
- Time to first ambulation [Time frame: Within 7 days after surgery]
- Postoperative hospital stay [Time frame: From the start of surgery to discharge, the average is ten days]
- Dynamic VAS pain score at each time point [Time frame: At 2, 6, 12, 24, 48, and 72 hours postoperatively.]
- Dynamic VAS pain score at each time point [Time frame: Postoperative 2 hours (h), 6h, 12h, 24h, 48h, 72 hours (h)]
Eligibility criteria
Inclusion criteria
- Patients scheduled for elective open upper abdominal surgery, including open liver, gastric and pancreatic surgery.
- Patients receiving general anesthesia with tracheal intubation.
- Aged from 18 to 80 years old.
- Patients with American Society of Anesthesiologists (ASA) physical status class Ⅰ-Ⅲ.
- Patients who can understand the trial content, are willing to strictly follow the clinical research protocol and complete the trial, and voluntarily sign the informed consent form.
Exclusion criteria
- Pregnant or lactating women.
- Patients complicated with severe primary diseases of the lung, liver, kidney, cardiovascular system and hematopoietic system.
- Bleeding tendency or coagulation dysfunction, defined as international normalized ratio (INR) ≥ 1.4, activated partial thromboplastin time > 38 s, or platelet count < 80×10⁹/L.
- Patients with aggravated cardiac diseases (complex congenital heart disease, heart failure and valvular disease) or pulmonary insufficiency.
- Skin infection at the puncture site for erector spinae plane block (ESPB).
- Previous history of neurological or psychiatric diseases, with inability to read, understand and communicate.
- Current obstructive or restrictive pulmonary disease.
- Patients with BMI greater than 30 kg/m².
- Drug abuse, long-term regular use of analgesics, or allergy to the study drugs.
- Patients who refuse to provide informed consent.
- Those enrolled in other randomized controlled trials simultaneously or with other conditions unsuitable for participation in this trial.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Triple blind
- Primary purpose
- Treatment
Study locations
China · 1 center
- the Second Affiliated Hospital, Zhejiang University School of Medicine — Hangzhou
Identifiers
NCT: NCT07667439 · 2024-1120