“…Among the included studies, nine targeted adult patients after coronary artery bypass graft (CABG), 11,12,31,34,35,37,40,42,43 while the remaining studies included adult patients after CABG, mitral valve replacement, aortic valve replacement 7,32,36 and other targeted cardiac procedures 29,30,33,38,39,41 . For the 13 different sedation and analgesia protocols used, 11 RCTs used propofol, 7,11,12,31–36,39,43 11 used dexmedetomidine, 7,29,30,32,33,36,40–43 3 used sevoflurane, 11,12,34 2 used midazolam, 7,38 2 used dexmedetomidine and ketamine, 37,40 2 used morphine, 29,41 1 used morphine and midazolam, 30 1 used fentanyl, 39 1 used propofol and fentanyl, 39 1 used clonidine, 42 1 used oxycodone‐thiopental, 35 1 used propofol and dexmedetomidine 37 and 1 used propofol and remifentanil 38 . Eight studies used the Richmond agitation and sedation scale (RASS) for sedation assessment to ensure that an appropriate level of sedation was maintained in the ICU for postoperative cardiac patients 7,11,12,30,32,36,39,42 .…”