The aim of this study is to compare the effects of preemptive analgesia using liposomal bupivacaine mixed with bupivacaine HCl, versus bupivacaine HCl alone for uterosacral ligament injection in patients undergoing vaginal hysterectomy. We hypothesize that the group receiving a combination of liposomal bupivacaine and bupivacaine HCl will report superior postoperative pain management. Enhancement in pain control should confer a decrease in opioid and other analgesic medication requirements, which may contribute to decreased nausea, vomiting, and higher overall patient satisfaction with pain control.
Prior to surgery, patients are assigned by chance (like a coin toss) to receive either the bupivacaine HCl injection at the time of surgery or bupivacaine HCl plus liposomal bupivacaine. Patients and the Principal Investigator cannot choose the study group. Patients will have a 50% chance of being assigned to either group; however, regardless of which group they are assigned to, the medical record will show that they received liposomal bupivacaine. The injections will be given in the vaginal area when the patient is under anesthesia. After surgery, patients will be asked to record their pain, medication use, pain scores and symptoms in a diary for each 12 hour interval up to 72 hours. Someone will also call twice a day during the 72 hours after surgery to ask about pain level and pain medication use. Patients will also receive a phone call 7-10 days after the surgery to ask about their recovery and pain level.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
28
Liposomal bupivacaine is a novel formulation of local bupivacaine and allows prolonged release of the medication, thereby providing longer lasting effects. It is approved by the FDA and has been shown to provide excellent pain control after surgery.
We currently administer local plain bupivacaine during vaginal hysterectomy to decrease pain in the postoperative period. Bupivacaine is an anesthetic that works by blocking nerve conduction and producing a numbing effect.
Mayo Clinic in Arizona
Phoenix, Arizona, United States
Total Post-surgical Opioid Medication Use
Participants post-surgical analgesic medication use of IV hydrocodone and oxycodone measured in morphine equivalents (ME)
Time frame: First 72 hours following surgery completion
Total Post-surgical Analgesic Medication Use
Participants post-surgical analgesic medication use of Ibuprofen and acetaminophen measured in milligrams (mg)
Time frame: First 72 hours following surgery completion
Mean PACU Visual Analog Scale (VAS) (0-10) Pain Score
Scale Ranges from 0 (no pain) to 10 (extreme pain)
Time frame: Assessed while patient in PACU for recovery post-surgery per standard procedure
VAS Pain Score at 24, 48, and 72 Hours Post-surgery Completion
Scale Ranges from 0 (no pain) to 10 (extreme pain)
Time frame: 24, 48, and 72 hours post-surgery completion
Nausea at 24, 48, and 72 Hours Post-surgery Completion
Number of times patient reported feeling nauseous
Time frame: 24, 48, and 72 hours post-surgery
Emesis at 24, 48, and 72 Hours Post-surgery Completion
Number of times the patient vomited
Time frame: 24, 48, and 72 hours post-surgery
Urinary Retention
Number of patients who had post-void residual (PVR) \>150cc's at voiding trial prior to discharge
Time frame: At voiding trial prior to discharge from hospital, approximately 72 hours
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Patient Satisfaction With Pain Management at 72 Hours and 7-10 Days Post Surgery
Assessed on 0-10 scale (0 being worst level of satisfaction, 10 being best level)
Time frame: 72 hours and 7-10 days post surgery