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Clinical Trial Summary

The specific aim of this randomized double-blind clinical trial is to evaluate the effect of intraoperative infiltration of liposomal bupivacaine at the time of posterior colporrhaphy and/or perineorrhaphy on postsurgical pain scores during the first 72 hours after surgery as measured by visual analog scales (VAS) for patients undergoing surgery for pelvic organ prolapse. Study subjects are randomized to 30 mL of liposomal bupivacaine versus 30 mL of injectable normal saline administered in a standardized technique into the posterior vaginal compartment at the time of posterior repair and/or perineorrhaphy.


Clinical Trial Description

Liposomal bupivacaine (EXPAREL; Pacira Pharmaceuticals, San Diego, CA) is an extended release local anesthetic approved by the Food and Drug Administration since 2011 for the treatment of postsurgical pain. It is a multivesicular liposomal delivery system, consisting of a liquid bupivacaine core encapsulated by a phospholipid shell. This delivery technology allows for the slow, sustained release of bupivacaine over at least 72 hours. Liposomal bupivacaine has been studied extensively in the general surgery and orthopedic surgery literature. Specifically, infiltration of liposomal bupivacaine after excisional hemorrhoidectomy has been shown to significantly lower postsurgical pain scores, decrease total postoperative opioid requirements, increase the number of patients who do not require any opioids after surgery, meaningfully delay the median time to first opioid use, and improve patient satisfaction with overall perioperative analgesia. Posterior colporrhaphy and perineorrhaphy are pelvic reconstructive surgical procedures that are associated with significant postsurgical localized pain resulting from surgical incisions. Investigators hypothesize this localized postsurgical pain will benefit from treatment with an extended release local anesthetic formulation similar to hemorrhoidectomy. Intraoperative infiltration of a standard local anesthetic during posterior repair and perineorrhaphy has been shown to improve early analgesia and facilitate early postoperative recovery. These findings reiterate the need for studies investigating a slow-release, longer-acting local anesthetic formulation for patients undergoing posterior repair and/or perineorrhaphy - one that ideally can be integrated into an evidence-based, opioid-sparing postsurgical pain management regimen to improve perioperative care for the steadily growing pelvic reconstructive surgical patient population. The primary study objective is to evaluate the effect of intraoperative infiltration of liposomal bupivacaine at the time of posterior colporrhaphy and/or perineorrhaphy on postsurgical pain scores during the first 72 hours after surgery as measured by visual analog scales (VAS). Secondary objectives include to evaluate total opioid consumption during the first 72 postoperative hours, to evaluate patient satisfaction with postoperative analgesia, to evaluate time to first opioid administration postoperatively, to evaluate hospital length of stay, to evaluate length of stay in post-anesthesia care unit (PACU), to evaluate total hospital costs, to evaluate time to first bowel movement postoperatively, to evaluate rate of postoperative nausea and vomiting, to evaluate time to successful voiding trial, and to evaluate proportion of patients discharged home with a Foley catheter. Patients will be approached for participation preoperatively and randomized in the operating room to either liposomal bupivacaine or injectable normal saline administered into the posterior vaginal compartment in a standardized technique. All concurrent minimally invasive pelvic reconstructive surgical procedures are allowed. Randomization will be stratified for abdominal versus purely vaginal surgery. Perioperative care is standardized. Data will be abstracted from the medical record. Additionally, subjects will be discharged home with a medication diary and pain scales. Subjects will record their pain every morning and every evening for the first 72 hours after surgery. Subjects will complete a satisfaction survey at their 2 week postoperative visit. Adverse postoperative outcomes will be collected for 30 days after surgery. The study is powered to detect a 20 mm difference in a 100 mm visual analog scale for pain. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03875664
Study type Interventional
Source Wake Forest University Health Sciences
Contact
Status Completed
Phase Phase 4
Start date July 23, 2018
Completion date March 31, 2019

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