Table 2.
Results of direct comparison for preoperative preparation of LC with VR MRCP and conventional MRCP.
| Overall | Conventional MRPC | VR MRCP | p | |
|---|---|---|---|---|
| n | 13 | 5 | 8 | |
| Age (years) (median [IQR]) | 31 [30, 34] | 31 [30, 32] | 32.50 [29.75, 34.50] | 0.941 |
| Year of training (median [IQR]) | 5 [2, 6] | 5 [4, 5] | 5.5 [2, 6.25] | 0.599 |
| Number of LC performed (median [IQR]) | 23 [8, 33] | 23 [7, 33] | 26 [8, 42.75] | 0.66 |
| Predicted difficulty (median [IQR]) | 4 [2, 7] | 3 [1, 4] | 4.5 [3.5, 7.25] | 0.208 |
| Previous surgery = yes (%) | 4 (30.8) | 2 (40) | 2 (25) | 1 |
| Time for preparation (min) (median [IQR]) | 6 [5, 8] | 5 [4, 7] | 6.5 [5.75, 8.5] | 0.267 |
| Planned operative time (min) (median [IQR]) | 80 [70, 90] | 90 [75, 90] | 75 [67.5, 90] | 0.225 |
| Nassar grade (%) | 0.152 | |||
| 1 | 2 (17) | 2 (40) | 0 (0) | |
| 2 | 5 (41) | 2 (40) | 3 (43) | |
| 3 | 5 (41) | 1 (20) | 4 (57) | |
| Operative time (min) (median [IQR]) | 78 [60, 120] | 66 [60, 70] | 90.5 [72.5, 120] | 0.464 |
| GOALS self assessment (median [IQR]) | 17 [15, 20] | 16 [15, 20] | 17.5 [14.75, 21.25] | 0.659 |
| GOALS examiner assessment (median [IQR]) | 16 [12, 22] | 11 [11, 18] | 16 [13, 22.25] | 0.27 |
| In-hospital complications = n | 0 | 0 | 0 | NA |
| Length of stay (days) (median [IQR]) | 2 [2, 2] | 2 [2, 2] | 2 [2, 2] | 0.429 |
Median answers and interquartile ranges on the Likert scale, as well as percentage of positive responses (rating of 4 or 5 in positive and 1 or 2 in inversely formulated questions).
Abbreviations: CVS, critical view of safety; min, minutes.