70
Participants
Start Date
August 31, 2013
Primary Completion Date
May 31, 2015
Study Completion Date
May 31, 2015
Single injection paravertebral block
"The patients in single injection group will receive single injection paravertebral block at T3-T4 level with 25 ml of 0.5% ropivacaine and four subcutaneous sham injections"
Multiple injection paravertebral blocks
"Patients in the multiple injection group will receive five injections of paravertebral blocks from T1 to T5 level. 5 ml of 0.5% ropivacaine was injected at each level."
St. Joseph's Health Care, London
London Health Sciences Centre University Hospital, London
London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
OTHER