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Table 2 Comparison of characteristics related to surgical difficulties between the aBVA and VAB cohorts

From: Different dissecting orders of the pulmonary bronchus and vessels during right upper lobectomy are associated with surgical feasibility and postoperative recovery for lung cancer patients

Variable Total (n = 301) aBVA cohort (n = 109) VAB cohort (n = 192) P
Maximum tumor diameter (cm, mean ± SD) 2.83 ± 1.35 2.72 ± 1.20 2.89 ± 1.42 0.530
T stage [cases (%)] 0.181*
 1a 70 (23.3) 24 (22.0) 46 (24.0)  
 1b 46 (15.3) 11 (10.1) 35 (18.2)  
 2a 139 (46.2) 58 (53.2) 81 (42.2)  
 2b 20 (6.6) 5 (4.6) 15 (7.8)  
 3 23 (7.6) 9 (8.3) 14 (7.3)  
 4 3 (1.0) 2 (1.8) 1 (0.5)  
Incomplete fissure [cases (%)] 94 (31.2) 29 (26.6) 65 (33.9) 0.192
Intrathoracic adhesion [cases (%)] 84 (27.9) 30 (27.5) 54 (28.1) 0.911
Number of dissected LN stations (mean ± SD) 7.13 ± 1.98 7.8 ± 1.92 6.74 ± 1.91 <0.001
Number of dissected LNs (mean ± SD) 21.52 ± 9.42 22.95 ± 9.13 20.71 ± 9.51 0.031
  1. aBVA RUL with the dissecting order of the posterior ascending arterial branch [a], followed by the right upper bronchus [B] and pulmonary vessels [VA]; VAB RUL with the dissecting order of the right upper pulmonary veins and arteries [VA], followed by the right upper bronchus [B]; SD standard deviation; LN lymph node
  2. * Fisher’s exact test