Korean J Anesthesiol > Volume 76(2); 2023 > Article |
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Data Availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
Author Contributions
Hyun-Jung Shin (Conceptualization; Data curation; Formal analysis; Investigation; Methodology; Validation; Writing – original draft; Writing – review & editing)
Heeyeon Kim (Investigation; Methodology)
Sung-Hee Han (Conceptualization; Investigation; Methodology)
Sang-Hwan Do (Conceptualization; Methodology)
Hyo-Seok Na (Conceptualization; Data curation; Supervision; Writing – review & editing)
Values are presented as mean ± SD, median (Q1, Q3), or number of the patients (%). TKA: total knee arthroplasty, CSA: cross-sectional area, RLD: right-lateral decubitus, GV: gastric volume. GVs were presented in calculated total volume and in unit volume per body weight, respectively. Paired t-test for CSA in a semi-recumbent position. Wilcoxon signed rank test for CSA in RLD and GV. McNemar-Bowker test for the comparison of qualitative assessment of GV.
n = 36 | |
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Tramadol (mg) | 522.2 ± 434.9 |
MED of tramadol (mg) | 52.2 ± 43.5 |
Morphine (mg) | 1.7 ± 4.6 |
Total MED (mg) | 53.9 ± 42.8 |