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Laparoscopic Intersphincteric Resection

dIscussIon with the corresponding survival probability of being 85.7, 80.0, and
Selecting surgical methods for low rectal cancer depends on the 77.9%. Morino. M studied 70 low rectal cancer cases undergoing
laparoscopic surgery, with a 5-year overall survival rate of 80.7%,
degree of tumor invasion in the sphincter, the stage of invasion, and and the survival rates for stages I, II, and III were 92, 79, and 73%,
the distance from the tumor to the margin of the anus. The distance respectively. Thus, the survival rate after 4 years in our study was
14
can be determined by using magnetic resonance imaging of the equivalent to other studies.
abdominal/pelvic area. In our study, there were 16 cases (37.2%)
having tumors located 5–6 cm away from the anal margin, 23 cases
(53.5%) having tumors located 4–5 cm from the anal margin, and conclusIon
4 cases (9.3%) having tumors located less than 4 cm from the anal This study showed that laparoscopic intersphincteric resection
margin. Recent studies show that tumors with a distance of less and colon shaping were effective in low rectal cancer treatment.
than 2 cm to the anal margin can reach R0 and rectal tumors often Colon shaping was an effective method of improving bowel
spread across the mesorectum and up the abdominal/pelvic area function in cases of subtotal or total intersphincteric resection.
along with the lymph node. The lower the distance indicated, the
better chance of sphincter-saving. 8
In this study, 16 cases had to perform surgery to remove the references
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100% of the patients had Wexner score below 10 (mean = 5.7 ± 2.2). systematic review. Ann Surg Oncol 2012;19(3):801–808. DOI: 10.1245/
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37.2% had a score of 5 points or above. This was because the low 9. Chen H, Ma B, Gao P, et al. Laparoscopic intersphincteric resection
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