Table 2 Intraoperative and postoperative outcomes
Before matching | After matching | |||||
|---|---|---|---|---|---|---|
MIE | RAMIE | P value | MIE | RAMIE | P value | |
No. of patients (%) | 43 | 43 | 26 | 26 | ||
Thoracic operative time (min) mean | 229(128–460) | 250(162–339) | 0.019§ | 240.5(148–460) | 241.5(193–339) | 0.110# |
Blood loss (ml) mean | 65(0–446) | 26(0–600) | < 0.001§ | 62.5(0–446) | 31.5(0–355) | 0.012# |
3-FLND | 13(30.2) | 4(9.3) | 0.028‡ | 7(26.9) | 4(15.4) | 0.508¶ |
Dissected thoracic lymph nodes | 25(5–60) | 24(8–58) | 0.638§ | 28(5–60) | 25(10–57) | 0.404# |
Postoperative hospital stay | 27(18–102) | 13(8–40) | < 0.001§ | 28(18–102) | 14(8–35) | < 0.001# |
Pathological T factor | 0.002‡ | 0.200 | ||||
 Tis, 1a / 1b / 2 / 3 | 1(2.3)/23(53.5)/3(7.0)/16(37.2) | 5(11.6)/31(72.1)/5(11.6)/2(4.7) | 1(3.8)/17(65.4)/1(3.8)/7(26.9) | 3(11.5)/18(69.2)/3(11.5)/2(7.7) | ||
Pathological N factor | 0.375‡ | 0.023 | ||||
 0 / 1 / 2 | 27(62.8)/15(34.9)/1(2.3) | 26(60.5)/13(30.2)/4(9.3) | 18(69.2)/8(30.8)/0(0) | 19(73.1)/5(19.2)/2(7.7) | ||
Pathological TNM stage | 0.465‡ | 0.306 | ||||
 0 / I / II / III | 10(23.3)/9(20.9)/14(32.6)/10(23.3) | 15(34.9)/11(25.6)/11(25.6)/6(14.0) | 8(30.8)/6(23.1)/8(30.8)/4(15.4) | 11(42.3)/7(26.9)/5(19.2)/3(11.5) | ||
Postoperative complication (CD ≧ II) | 20(46.5) | 10(23.3) | 0.04 | 13(50.0) | 5(19.2) | 0.021¶ |
 Pneumonia | 5(11.6) | 3(7.0) | 0.713‡ | 2(7.7) | 1(3.8) | 1.000¶ |
 Anastomotic leakage | 0.110‡ | 0.125¶ | ||||
 Type I / Type II | 0(0)/6(14.0) | 0(0)/1(2.3) | 0(0)/4(15.4) | 0(0)/0(0) | ||
RLN paralysis | 0.112 | 0.070¶ | ||||
   I | 12(27.9) | 6(14.0) | 10(38.5) | 4(15.4) | ||
Chylothorax | 1.000‡ | - | ||||
 Type I | 0(0) | 1(2.3) | 0(0) | 0(0) | ||
Recurrence | 11(25.6) | 10(23.3) | 0.802 | 6(23.1) | 6(23.1) | 1.000¶ |