Gastroenterology Research, ISSN 1918-2805 print, 1918-2813 online, Open Access
Article copyright, the authors; Journal compilation copyright, Gastroenterol Res and Elmer Press Inc
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Original Article

Volume 16, Number 5, October 2023, pages 254-261

Safety and Efficacy of Powered Non-Thermal Endoscopic Resection Device for Removal of Colonic Polyps: A Systematic Review and Meta-Analysis


Figure 1.
Figure 1. Prisma flow diagram of literature review process.
Figure 2.
Figure 2. Forest plot of technical success rate.
Figure 3.
Figure 3. Forest plot of intraoperative bleeding.
Figure 4.
Figure 4. Forest plot of post-procedure bleeding.


Table 1. Quality Assessment of Studies via MINORS Scale
StudyClearly stated aimInclusion of consecutive patientsProspective collection of dataEndpoints appropriate to the aim of the studyUnbiased assessment of the study endpointFollow-up period appropriate to the aim of the studyLoss to follow-up less than 5%Prospective calculation of the study sizeAn adequate control groupContemporary groupsBaseline equivalence of groupsAdequate statistical analysesTotal score
Kandiah et al (2019) [15]22220220000214
Kaul et al (2021) [14]22220220221219
Knabe et al (2019) [13]22220200220115


Table 2. Study Characteristics
StudyStudy designTotal numberAge, mean (years)Male sex, %Technical success rateRate of residual lesions
NR: not reported.
Kandiah et al (2019) [15]Prospective197158%84%47.4%
Kaul et al (2021) [14]Retrospective286850%100%11.8%
Knabe et al (2019) [13]Prospective14NR21%83%64%


Table 3. Adverse Outcomes
StudyTotal numberIntraoperative bleedingPost-procedural bleedingPerforation
Kandiah et al (2019) [15]192 (10.5%)00
Kaul et al (2021) [14]284 (14.3%)2 (7.1%)0
Knabe et al (2019) [13]142 (14.3%)2 (14.3%)0