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Table 9 Outcomes according to operative procedure reverse Trendelenburg (RTP) status

From: Evaluation of operating room reverse Trendelenburg positioning and its effect on postoperative hypoxemia, aspiration, and length of stay: a retrospective study of consecutive patients

Audit RTP (No) RTP (Yes) p value
  825 (82.5%) 175 (17.5%)  
Postoperative length of stay (days) 2.7 ± 3.5 2.2 ± 2.8 0.0246
Preoperative risk
 Age 57 ± 18 56 ± 17 0.3479
 ASA classification 2.8 ± 0.6 2.9 ± 0.6 0.5627
 Emergency procedures 82 (9.9%) 5 (3.0%) 0.0025
 Preexisting lung disease 112 (13.6%) 41 (23.4%) 0.0010
 Weight (kg) 86 ± 24 89 ± 23 0.0746
Intraoperative risk
 Operating room minutes 129 ± 75 126 ± 61 0.5419
 Glycopyrrolate on induction 200 (24.2%) 48 (27.4%) 0.3753
 Fluid input (L) 1.5 ± 1.0 1.6 ± 0.9 0.5296
  1. No no operative RTP or no audit, Yes RTP throughout or a portion of the operative procedure, ASA American Society of Anesthesiologists