Abstract:
BACKGROUND/AIMS:This study aimed to analyze the endoscopic mucosal resection (EMR) with a novel uniquely shaped, double-loop snare (Dualoop, Medico's Hirata Inc., Tokyo, Japan) for colorectal polyps. METHODS:This was a clinical trial conducted in two referral centers, Kyoto Prefectural University of Medicine and National Cancer Center Hospital in Japan. First, the firmness of various snares including 'Dualoop' was experimentally analyzed with a pressure gauge. Five hundred and eighty nine consecutive polyps that underwent EMR with 'Dualoop' were compared to 339 polyps with the standard round snare. Lesion characteristics, en bloc resection, and complications were analyzed. RESULTS:'Dualoop' had the most firmness among the various snares. The average tumor size was 9.3 mm (5-30), and en bloc resection was achieved in 95.4%. The rate of en bloc resection for middle polyps 15-19 mm in diameter was significantly higher with the 'Dualoop' than that with the round snare (97.9 vs. 80.0%, p < 0.05). The rate of en bloc resection was 64.7% for large polyps ≥20 mm in diameter using 'Dualoop'. Higher age, larger tumor size, and superficial polyps were associated with the failure of en bloc resection. CONCLUSION:EMR with 'Dualoop' was effective for resecting both middle and large polyps en-bloc.
journal_name
Digestionjournal_title
Digestionauthors
Yoshida N,Saito Y,Hirose R,Ogiso K,Inada Y,Yagi N,Naito Y,Otake Y,Nakajima T,Matsuda T,Yanagisawa A,Itoh Ydoi
10.1159/000368044subject
Has Abstractpub_date
2014-01-01 00:00:00pages
232-9issue
4eissn
0012-2823issn
1421-9867pii
000368044journal_volume
90pub_type
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