Zhang RP, Tian SL, Zhang HG. Clinical application of submucosal injection of particulate carbon around the rectal cancer lesions in total mesorectal excision.
Shijie Huaren Xiaohua Zazhi 2006;
14:2652-2654. [DOI:
10.11569/wcjd.v14.i26.2652]
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Abstract
AIM: To evaluate the application value of particulate carbon in total mesorectal excision..
METHODS: Particulate carbon was submucosally injected around the rectal cancer lesions under rectoscope in 45 patients 3 d before total mesorectal excision. The expression of matrix metalloproteinase-7 (MMP-7) mRNA was detected by reverse transcription-polymerase chain reaction (RT-PCR) to ascertain the lymph node metastasis.
RESULTS: The labelled lymph nodes were easily identified during the operation. The average numbers of eliminated lymph nodes and metastatic lymph nodes in the labelled group were larger than those in the controls (23.5 vs 16.1, t = 7.3733, P < 0.05; 9.0 vs 6.2, t = 5.4235, P < 0.05). In the labelled group, there were 680 labelled lymph nodes, of which 322 were metastatic ones. The numbers of labelled and metastatic lymph nodes were linearly correlated with each other (r = 0.3468, P < 0.05).
CONCLUSION: Submucosal injection of particulate carbon can help to clean metastatic lymph nodes in total mesorectal excision. The number of labelled lymph nodes is correlated with that of metastatic lymph nodes.
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