Prospective Randomized Clinical Trial to Evaluate the Use of Paravertebral Blocks in Reconstructive Breast Surgery
Paravertebral Blocks and General Anesthesia The use of a paravertebral block involves
injecting local anesthesia (a numbing medicine) into the patient's back to numb specific
areas (the breast[s] for this study) for surgery.
General anesthesia is medicine that is used to put patients to sleep so that there is no
feeling of pain.
If you are found to be eligible to take part in this study, you will be randomly assigned
(as in the toss of a coin) to 1 of 2 groups. You will have an equal (50/50) chance of being
assigned to either group.
Participants in one group will receive a paravertebral block (the local anesthetic
ropivacaine) plus general anesthesia.
Participants in the other group will receive general anesthesia (propofol, desflurane, and
fentanyl) without a paravertebral block.
If you are assigned to receive the paravertebral block plus general anesthesia, you will
have a paravertebral block placed just before surgery begins. Ropivacaine will be given by
injection into the paravertebral space along the spinal canal.
If you are assigned to receive general anesthesia without a paravertebral block, you will be
given propofol, desflurane, and fentanyl by vein over 1-4 hours during surgery.
Participants in both groups will receive promethazine, famotidine, and dexamethasone at the
start of surgery to help decrease or eliminate nausea and vomiting that may occur after
After your surgery is complete, before you leave the hospital, you will have the following
- You will be asked how you are feeling so that the study doctor can determine how much
medication you may need for pain and nausea as well as how long your hospital stay may
need to be. You may be given fentanyl and dilaudid for pain and ondansetron and
promethazine for nausea.
- You will also be asked about your satisfaction with the anesthesia. You will be asked
these questions within the first hour, between 1 and 3 hours, and between 3 and 6 hours
after surgery. Once you are discharged from the hospital, study staff will contact you
by phone or talk with you when you return for a visit (at 18 -22 hours and 1 week after
surgery) to ask these questions. It will take about 3-5 minutes to ask these questions
Length of Study:
Your participation in this study will be over after the 1 week follow-up telephone call.
This is an investigational study. Paravertebral blocks and general anesthesia are FDA
approved and commercially available. Up to 89 patients will take part in this study. All
will be enrolled at M. D. Anderson.
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Proportion of Patients with No Pain Immediately After Surgery
Starting immediately after surgery, every 2 hours till the 6th hour following surgery
Farzin Goravanchi, MD
M.D. Anderson Cancer Center
United States: Institutional Review Board
|UT MD Anderson Cancer Center||Houston, Texas 77030|