Retrospective study - Electronic medical records of consecutive patients who underwent pectus surgery between January and December of 2019 (epidural protocol) and those who underwent same procedure between June 2020 to May 2021, will be evaluated. Covariates and outcomes described in sections below will be recorded from EMR. The data included records from flowsheets, pain team notes based on follow up questionnaires administered by phone after discharge until after ESP catheters were removed, as well as pain clinic notes.
