Research Article

A Retrospective Study of Risk Factors for Symptomatic Anastomotic Leakage after Laparoscopic Anterior Resection of the Rectal Cancer without a Diverting Stoma

Table 4

Tumor-related variables.

VariablesAL (+) ()AL (−) ()

Tumor location, (%)0.602
 Above peritoneal reflection13 (72.2%)383 (80.1%)
 Below peritoneal reflection5 (27.8%)95 (19.9%)
Pathological T stage, (%)0.246
 Tis, T1, T2, and no tumor residual after preoperative therapy3 (16.7%)140 (29.3%)
 T3 and T415 (83.3%)338 (70.7%)
Pathological N stage, (%)0.854
 N0 and no tumor residual after preoperative therapy10 (55.6%)255 (53.3%)
 N1 and N28 (44.4%)223 (46.7%)
Pathological M stage, (%)0.553
 M018 (100%)448 (93.7%)
 M10 (0%)30 (6.3%)
TNM stage, (%)0.746
 0-II and no tumor residual after preoperative therapy10 (55.6%)247 (51.7%)
 III-IV8 (44.4%)231 (48.3%)
Degree of differentiation, (%)0.337
 Low, low-middle grade7 (38.9%)136 (28.5%)
 Middle, high-middle, high grade, and no tumor residual after therapy11 (61.1%)342 (71.5%)

AL: anastomotic leakage.