Journal
UPDATES IN SURGERY
Volume 71, Issue 3, Pages 493-504Publisher
SPRINGER-VERLAG ITALIA SRL
DOI: 10.1007/s13304-019-00642-3
Keywords
Rectal cancer; Minimally invasive; Robotic proctectomy; Laparoscopy
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Minimally invasive surgery (MIS) is gaining popularity in rectal tumor treatment. However, contrasting data are available regarding its safety and efficacy. Our aim is to compare the open and MIS approaches for rectal cancer treatment. Two-hundred-thirty-seven patients were included: 113 open and 124 MIS rectal resections. After the propensity score matching analysis (PS), the cases were matched into 42 open and 42 MIS. Short- and long-term outcomes, and pathological findings were analyzed before and after PS. A further comparison of the same outcomes and costs was conducted between the laparoscopic and the robotic approaches. As a whole, a sphincter-preserving procedure was more frequently performed in the MIS group (110 vs 75 cases; p < 0.0001). The estimated blood loss during MIS was significantly lower than during open surgery [127 (+/- 92) vs 242 (+/- 122) mL; p < 0.0001], with clear advantages for the robotic approach over laparoscopy [113 (+/- 87) vs 147 (+/- 93) mL; p 0.01]. Complication rate was comparable between the two groups. A higher rate of CRM positivity was evidenced after open surgery (12.4% vs 1.7%; p 0.004). A higher number of lymph nodes was harvested in the MIS group [12.5 (+/- 6.4) vs 11 (+/- 5.6); p 0.04]. After PS, no difference in terms of perioperative outcomes was noted, with the only exception of a higher blood loss in the open approach [242 (+/- 122) vs 127 (+/- 92) mL; p < 0.0001]. For the matched cases, no difference in 5-year overall and disease-free survival was evidenced (p 0.50 and 0.88, respectively). Mean costs were higher for robotics as compared to laparoscopy [9812 (+/- 1974)euro vs 9045 (+/- 1893)euro; p 0.02]. MIS could be considered as a treatment option for rectal cancer. The PS study evidenced clear advantages in terms of estimated blood loss over the open surgery. Costs still remain the main limit for robotics.
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