Background
Since the Clinical Outcomes of Surgical Therapy (COST) trial data were reported in May 2004, the laparoscopic technique for
primary colorectal cancer has been increasingly used and become the approach of choice at our center. This study aimed to
evaluate our laparoscopic experience of 570 consecutive patients between October 2000 and December 2006, and assess the feasibility
of this technique as the surgical approach of choice for primary colorectal cancer.
Methods
The study times were divided into three periods based on the COST trial report and the time when the laparoscopic technique
was accepted as the surgical approach of choice at our center (period I: October 2000 to May 2004, II: June 2004 to December
2005, III: January to December 2006). Data regarding clinicopathological, surgical, and perioperative outcomes were collated
from registry and compared between periods.
Results
The use of laparoscopic surgery increased from 2.4% in period I, to 19.2% in period II, to 66.1% in period III. Over the periods,
the proportion of rectal cancer and right colon cancer increased (p < 0.001), T- and N-stage became more advanced (p < 0.001, p = 0.011 respectively), and operative time decreased (p < 0.001). The overall open conversion and morbidity rates were 3.5% and 9.8%, respectively, and these did not differ between
periods.
Conclusion
It was possible to apply laparoscopic approach in two-thirds of primary colorectal cancer patients. The short-term favorable
outcomes support the feasibility of laparoscopic technique as surgical approach of choice for colon cancer. Laparoscopic resection
for rectal cancer may require a randomized clinical trial prior to gain similar acceptance.
Keywords Colon cancer - Rectal cancer - Laparoscopy
This work supported by National Cancer Center Grant 0610280.