Isolated rectal cancer surgery: a 2007-2014 population study based on a large administrative database.

Rectal resection is technically one of the most demanding laparoscopic procedures, requiring additional training and expertise of both surgeons and institutions. The literature has shown that laparoscopic procedures can be appropriate for the treatment of rectal cancer (RC), in terms of safety, outcome and efficiency, but results may not always be directly transferable to the general population. This study aimed to investigate the use of laparoscopic rectal cancer resections in a north-eastern Italian region (the Veneto) and to see how the characteristics of patients and hospitals are associated with the use of laparoscopy. This was a retrospective cohort study based on administrative data collected from 2007 to 2014 in the Veneto region (north-east Italy). In the period considered (2007-2014), 4953 rectal resections were performed for RC in Veneto hospitals, accounting for 35% of the total 14,243 surgical procedures involving the rectum, and resulting in 76,739 days in hospital [mean length of stay-post-operative (MLOS) 15.5 ± 11.1 days]. Patients were a mean 67.9 ± 11.7 years old (68 ± 12.7 for women, 67.9 ± 11 for men), while the subgroup of patients undergoing laparoscopic procedures was on average 2 years younger (66.5 ± 11.8 vs 68.8 ± 11.5; p < 0.05). The four main findings of this study are: (1) the increasing rates of laparoscopic procedures for RC resection at all the hospitals in our geographical area, rising up to 52% in 2014. This is probably related to not only to availability of better equipment but surely to a growing expertise of surgeons; (2) the esteem of proportion of laparoscopically treated RC; (3) the significant difference between the laparoscopic and open surgical approach in terms of mean length of hospital stay after RC resection, making the laparoscopic approach cost-effective generally speaking; and (4) the disparities in hospitals' use of laparoscopy by patients' age group: Laparoscopic surgery is safe also in the elderly population but it is not so widely offers in Veneto Region hospitals, and it's probably due to the lack of experience about this approach in frail/old patients.