What is the balance of risks and benefits related to regional anaesthesia? Does the short term use of opioids really contribute to the opioid crisis? What are the benefits of "opioid sparing" when held against "opioid free"? When it comes to regional anaesthesia, what kind of benefits should we expect beyond pain control and opioid sparing?   Desiree Chappell interviews her guest Vincent W. S. Chan, Professor Anesthesia at The University of Toronto with contributions from Monty Mythen, TopMedTalk Editor in Chief and Smiths Medical Professor of Anaesthesia and Critical Care at University College London.   Go to www.topmedtalk.com and download our full back catalogue now.