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Table 2 Comparison of surgical safety and radicalization

From: Clinical efficacy of different approaches for laparoscopic intersphincteric resection of low rectal cancer: a comparison study

  TPAISR
n = 57 (%)
TAISR
n = 142 (%)
PAISR
n = 36 (%)
P value
Postoperative complications 17 (29.8) 38 (26.8) 4 (11.1) 0.100
Anastomotic leakage 1 (1.8) 4 (2.8) 1 (2.8) 1.000e
Intestinal obstruction 3 (5.3) 3 (2.1) 0 (0.0) 0.341e
Anastomotic stenosis 1 (1.8) 1 (0.7) 0 (0.0) 0.636e
Incision infection 0 (0.0) 1 (0.7) 0 (0.0) 1.000e
Others 12 (21.1) 29 (24.4) 3 (8.3) 0.227
Clavien-Dindo Complication grade
 Grade I 9 (15.8%) 13 (9.2%) 3 (8.3%) 0.413
 Grade II 8 (14.0%) 12 (8.5%) 1 (2.8%) 0.192
 Grade III
  III-a 0 1 (0.7) 0 1.000 e
  III-b-IV 0 0 0 NA
Positive distal margin 1 (1.8) 2 (1.4) 1 (2.8) 0.785e
CRMI 2 (3.5) 2 (1.4) 0 (0.0) 0.352e
Distal cutting margin (cm) 1.5 (1.5, 1.9) 1.5 (1.5, 2.5) 1.5 (1.0–1.5) 0.065
Lymph nodes harvested, median (IQR) 16 (11, 20) 15 (12, 20) 16 (12, 20) 0.829
Histological differentiation 0.042e
 Well 0 (0.0) 1 (0.7) 3 (8.3)  
 Moderate 57 (100) 139 (97.9) 33 (91.7)  
 Poor 0 (0.0) 2 (1.4) 0 (0.0)  
pT category 0.140
 T0 9 (15.8) 25 (17.6) 8 (22.5)  
 T1 9 (15.8) 17 (12.0) 1 (2.8)  
 T2 22 (38.6) 53 (37.3) 21 (58.3)  
 T3 17 (29.8) 47 (33.1) 6 (16.7)  
pN category 0.502e
 N0 42 (73.7) 99 (69.7) 37 (75.0)  
 N1 12 (21.1) 38 (26.8) 6 (16.7)  
 N2 3 (5.3) 5 (3.5) 3 (8.3)  
pTNM stagea 0.054e
 0 8 (14) 20 (14.1) 8 (22.2)  
 I 23 (40.4) 54 (38.0) 18 (52.8)  
 II 11 (19.3) 25 (17.6) 0 (0.0)  
 III 15 (26.3) 43 (30.3) 9 (25.0)  
Hospitalization, days 8.0 (7.0, 9.0) 9.0 (8.0, 9.0) 8.0 (7.0, 8.0) 0.066
  1. Data are reported as the median and percentile (25th–75th) or n (%); e Fisher’s exact test
  2. CRMI circumferential resection margin involvement, IQR interquartile range
  3. aUICC classification