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COMPARATIVE STUDY
JOURNAL ARTICLE

Laparoscopic versus open intersphincteric resection and coloanal anastomosis for low rectal cancer: intermediate-term oncologic outcomes

Jun Seok Park, Gyu-Seog Choi, Soo Han Jun, Suguru Hasegawa, Yoshiharu Sakai
Annals of Surgery 2011, 254 (6): 941-6
22076066

OBJECTIVE: To compare the surgical outcome and intermediate oncological outcomes for laparoscopic versus open intersphincteric resection (ISR).

BACKGROUND: Intersphincteric resection has been proposed as an alternative to abdominoperineal resection for selected low rectal cancer cases, but the oncological adequacy of laparoscopic ISR has not been established.

METHODS: A total of 210 consecutive patients with low rectal cancer who underwent ISR between 1997 and 2009 in 2 institutions were evaluated retrospectively. Patients were classified into an open surgery (OS, n = 80) group and a laparoscopy (LAP, n = 130) group. The primary endpoint was 3-year disease-free survival.

RESULTS: The major complication rates were similar in the LAP and OS groups (5.4% vs 3.8%, respectively; P = 0.428). However, the LAP group had a shorter hospital stay and time to bowel movement compared with the OS group. In the LAP group, operating time was 16 minutes shorter (P = 0.230) and intraoperative blood loss was less (P = 0.002). Median follow-up was 34 months (interquartile range: 20.0-42.5 months). The local recurrence rates were similar in the 2 groups (LAP, 2.6% vs OS, 7.7%; P = 0.184). The combined 3-year disease-free survival for all stages was 82.1% (95% CI: 73.7-90.2%) in the LAP group and 77.0% (95% CI: 66.9%-86.9%) in the OS group (P = 0.523).

CONCLUSIONS: Laparoscopic ISR can be performed safely and offers a minimally invasive sphincter-sparing alternative. The oncological adequacy of laparoscopic ISR requires long-term follow-up data, but the intermediate-term outcomes seem equivalent to those achieved with OS.

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