Fig. 8
Relationship between anastomotic site and value of T-Hb index of the stomach tube. The actual anastomotic position of the final gastrointestinal tube and the distribution of T-Hb index values at the terminal line of RGEA are shown as oral (+) and anal (−). The T-Hb index values were generally divided by 10–25 (× 10−2) in most cases. The actual anastomotic positions were varied. The T-Hb index values of anastomotic leakage cases were all higher than 25 (× 10−2). (Cases with suture failure are indicated by red dots)