Zakhary WZA, et al. - In this retrospective study, researchers compared patients receiving remifentanil with patients receiving sufentanil undergoing fast-track cardiac surgery. Each group comprised 609 patients after 1:1 propensity score matching. They noted a significantly longer mean ventilation time and length of stay in the sufentanil group compared to the remifentanil group. However, compared to the sufentanil group, the remifentanil group required more postoperative analgesia in order to reach the targeted visual analog pain score. No difference in intermediate care unit length of stay was evident despite a longer hospital stays in remifentanil group patients. The groups were similar in terms of fast-track failure rate, tracheal re-intubation rate, in-hospital mortality, postoperative nausea and vomiting or incidence of early postoperative delirium.