Laparoscopic total mesorectal excision of low rectal cancer with preservation of anal sphincter: A report of 82 cases

Table 1 Clinical and demographic data

Parameters	Data
Age, mean (years)	26-85, 44
Sex (No. of patients)
Male	46
Female	36
Tumor diameter, mean (cm)	1.5-13, 5.6
Distance of the tumor from the dentate line (cm)	1.5-7
1.5-5 cm from lowest edge of tumors to the dentate line (No. of patients)	48
5-7 cm from lowest edge of tumors to the dentate line (No. of patients)	34
Concomitant diseases (No. of patients)
Chronic cholecystitis, cholecystolithiasis, torsion of ovarian cyst and diabetes	2
Chronic cholecystitis and cholecystolithiasis	6
Previous lower abdominal operation	7