Table 2 Clinical characteristics and comparative analysis of the four inferior mesenteric artery types.
Characteristics | I | II | III | IV | F/χ2 | P-value |
|---|---|---|---|---|---|---|
Gender | 4.867 | 0.182 | ||||
Male | 47 | 9 | 22 | 4 | ||
Female | 26 | 13 | 22 | 4 | ||
Age (year) | 66.63 ± 12.89 | 69.82 ± 11.00 | 64.68 ± 13.76 | 76.75 ± 9.34 | 2.384 | 0.072 |
Height (cm) | 164.99 ± 9.11 | 159.68 ± 8.22 | 163.20 ± 7.11 | 159.50 ± 6.76 | 2.875 | 0.038 |
Weight (kg) | 63.42 ± 12.06 | 61.36 ± 11.73 | 61.72 ± 9.41 | 59.63 ± 8.93 | 0.476 | 0.700 |
BMI (kg/m2) | 23.19 ± 3.37 | 23.86 ± 3.02 | 23.15 ± 3.09 | 23.54 ± 3.88 | 0.284 | 0.837 |
IMV Classification | ||||||
Spatial structural relationship among the LCA, IMA and IMV | 4.979 | 0.547 | ||||
Medial type | 18 | 8 | 9 | / | ||
Crossing type | 24 | 6 | 11 | / | ||
Lateral type | 25 | 6 | 16 | / | ||
Distant type | 6 | 2 | 8 | / | ||
Crossing relationship between the LCA and IMV | 2.701 | 0.259 | ||||
Type A | 55 | 20 | 36 | / | ||
Type B | 18 | 2 | 8 | / | ||
The length of the IMA trunk (mm) | 37.43 ± 8.83 | 41.98 ± 5.73 | 40.42 ± 6.03 | 47.41 ± 10.00 | 5.072 | 0.002 |
Surgical duration (min) | 196.99 ± 48.06 | 195.91 ± 26.31 | 207.61 ± 36.85 | 210.00 ± 45.75 | 0.788 | 0.502 |
Intraoperative blood loss (ml) | 46.78 ± 42.82 | 45.91 ± 26.74 | 39.55 ± 33.91 | 43.75 ± 24.46 | 0.349 | 0.789 |
Postoperative recovery duration (day) | 12.21 ± 9.70 | 10.64 ± 6.53 | 11.14 ± 6.85 | 16.00 ± 9.38 | 0.905 | 0.440 |
Hospitalization duration (day) | 18.79 ± 11.12 | 16.04 ± 7.21 | 18.39 ± 10.74 | 20.50 ± 9.12 | 0.504 | 0.680 |
T | 0.854 | 0.837 | ||||
T1/T2 | 26 | 6 | 17 | 3 | ||
T3/T4 | 47 | 16 | 27 | 5 | ||
N | 1.709 | 0.635 | ||||
N0 | 50 | 17 | 31 | 7 | ||
N+ | 23 | 5 | 13 | 1 | ||
Lymph vessel invasion | 1.673 | 0.643 | ||||
Yes | 24 | 6 | 12 | 1 | ||
No | 49 | 16 | 32 | 7 | ||
Nerve invasion | 0.340 | 0.952 | ||||
Yes | 10 | 4 | 7 | 1 | ||
No | 63 | 18 | 37 | 7 | ||
