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Differences with experienced nurse assistance during colonoscopy in detecting polyp and adenoma: a randomized clinical trial

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International Journal of Colorectal Disease Aims and scope Submit manuscript

Abstract

Objectives

This study aims to evaluate whether the participation of an experienced endoscopy nurse in colonoscopy increases the polyp detection rate (PDR) and adenoma detection rate (ADR) of experienced colonoscopists.

Methods

This study was a randomized controlled trial. Patients were randomly assigned to the experienced colonoscopist alone (single observer) group, or experienced nurse participation (dual observer) group. The primary outcome was the PDR and ADR. The advanced lesion detection rate was also recorded.

Results

A total of 587 patients were included in the analysis. Among these patients, 291 patients were assigned to the single observer group, while 296 patients were assigned to the dual observer group. The PDR was 33% in the single observer group and 41.9% in the dual observer group (P = 0.026), while the ADR was 23.0% in the single observer group and 30.4% in the dual observer group (P = 0.043). No significant difference was found for advanced lesions between groups.

Conclusions

The present data demonstrated that experienced nurse observation during colonoscopy can improve polyp and adenoma detection rates, even if the colonoscopist is experienced.

Trial registration

Clinicaltrials.gov No. NCT02292563. https://clinicaltrials.gov/ct2/results?cond=&term=NCT02292563&cntry=&state=&city=&dist=

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Acknowledgements

The authors thank Dr. Chunjiu Hu, Dr. Honghui Chen, Dr. Xiaoyun Ding, and Dr. Haizhong Jiang at Ningbo First Hospital, Ningbo, China, for their valuable work in colonoscopy examination and data collection.

Funding

This study was supported by the Health and Family Planning Commission of Zhejiang Province (grant nos. 201483560, 2016KYB257,2017KY581). The funding authorities had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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Author notes

  1. Weihong Wang and Lu Xu contributed equally to this work.

Authors and Affiliations

  1. Department of Gastroenterology, Ningbo First Hospital, Ningbo, China

    Weihong Wang, Zhenfei Bao, Linyin Sun, Chunyan Hu, Feng Zhou, Lei Xu & Dingmei Shi

  2. College of Medicine, Ningbo University, Ningbo, China

    Lu Xu

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  1. Weihong Wang
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Correspondence to Dingmei Shi.

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Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Wang, W., Xu, L., Bao, Z. et al. Differences with experienced nurse assistance during colonoscopy in detecting polyp and adenoma: a randomized clinical trial. Int J Colorectal Dis 33, 561–566 (2018). https://doi.org/10.1007/s00384-018-3003-0

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