Stranger things: the erector spinae block, extra sensory perception, or paranormal block by proxy?

Abstract

The erector spinae plane block remains a divisive regional technique which has split the regional anesthesia community into believers and non-believers. Its main mechanism of action remains controversial and this has been pivotal in the controversy. We explore our current understanding of fascial plane blocks and erector spinae blocks as well as explore the gaps in knowledge. This opinion paper is meant to give a balanced view of the current state of this block in regard to guidelines, research and future. The viewpoint of the authors may not necessarily align with current ideas, however, hopefully will guide subsequent trials to more robust evidence.