Fig. 4 |. Post-surgical monitoring.

A patient monitored for a 12-h period post mitral valve repair was given intravenous epinephrine in response to post- operative hypotension noted in the electronic medical record (EMR). Hour 0 corresponds to the start of surgical wound closure. Intravenous epinephrine was started after initial rooming and assessment, and devices were placed shortly afterwards. While the medication was tapered after 3 h, MW delay remained high in the setting of hypotension, suggesting elevated peripheral vascular tone. This lasted until the patient’s BP recovered and the patient was able to feed, 10 h after surgery completion.