“…Some of those additional factors contributing to this finding may include patient pathology, condition, higher EBL, epidural vasoplegia, and greater insensible loss typical of more complex surgery as previously noted, though this result remains difficult to interpret in such a broad and multifactorial setting. Nevertheless, the variables affecting this previous result, namely, possible different ASA classifications among the AM vs. PM patient groups [4,16,17], the possible differential epidural placement for different cases [18,19], the possible difference in the number of laparoscopic procedures in the AM vs PM groups [20,21], different possible urine loss in cases of differing nature [22,23], possible different patient demographics in weight [23][24][25] or in age [26][27][28], the different pragmatic scheduling need for surgical procedures of longer duration in the AM vs the PM groups [29][30][31], and the possible different hemodynamic heat rate parameter between surgical cases of different nature among the AM vs PM groups [21,32,33], have all been accounted for in the literature with evidence showing the clear benefit of following the GDFT algorithm. In some regards these limitations result from and are common to how operating rooms actually run.…”