Hong Kong—Contrary to some previous studies, the use of paravertebral block (PVB) is not associated with a reduced rate of cancer recurrence or improved survival after breast cancer surgery, new research suggests.
There are two major hypotheses on the possible connection between PVB and breast cancer recurrence, according to Juan P. Cata, MD, study author, and assistant professor of anesthesiology and perioperative medicine at the University of Texas MD Anderson Cancer Center, in Houston: