Search
  • All Journals
Advanced Search
Search articles by Title, Author, Keywords, DOI
Submit Manuscript
0.7Impact Factor
Advanced Search
MAP  >  Gastrointestinal Tumors
2020 Volume 7
Article Contents
Next Previous
RESEARCH ARTICLE   Open Access    

Polyp Detection Rate as a Surrogate for Adenoma and Sessile Serrated Adenoma/Polyp Detection Rates

  • a.

    Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia

  • b.

    Department of Gastroenterology and Hepatology, Nagoya University, Nagoya, Japan

  • c.

    Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan

  • d.

    Department of Gastroenterology, Lyell McEwin Hospital, Adelaide, SA, Australia

  • e.

    Adelaide Health Technology Assessment, School of Public Health, University of Adelaide, Adelaide, SA, Australia

  • f.

    Department of Pathology, Lyell McEwin Hospital, Adelaide, SA, Australia

  • g.

    Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, Toyoake, Japan

  • Dr. Sudarshan Krishnamurthi is currently based in Malaysia and has finalised his attachment to the Lyell McEwin Hospital. Mrs. Amanda Ovenden has also finalised her attachment to the Lyell McEwin Hospital.

More Information
  • Corresponding author: Dr. Leonardo Zorron Cheng Tao Pu Faculty of Health and Medical Sciences Adelaide Medical School, University of Adelaide 4 North Terrace, Adelaide SA 5000 (Australia) Leonardo.zorronchengtaopu@adelaide.edu.au 
  • Introduction: Quality measures for colonoscopy such as adenoma detection rate (ADR) have been proposed to be surveilled for ensuring minimum standards. However, its direct measurement is time consuming and often neglected. Extrapolating ADR and other quality measures from polyp detection rate (PDR) can be a pragmatic alternative.
    Objective: To determine quotients for estimating ADR and sessile serrated adenoma/polyp detection rate (SSA/P-DR) from PDR in an Australian cohort.
    Methods: Consecutive adult patient colonoscopies during a 1-year period were retrospectively assessed in a single Australian tertiary endoscopy center. Adenoma detection quotient (ADQ) and SSA/P detection quotient (SSA/P-DQ) were defined as the division of ADR and SSA/P-DR by PDR, respectively. The primary outcome was the number of procedures to achieve a stable cumulative ADQ and SSA/P-DQ. Secondary outcomes included evaluation of ADQ and SSA/P-DQ in different subsets.
    Results: In total, 2, 657 colonoscopies were performed by 15 endoscopists in 2016. The ADR, SSA/P-DR, and PDR found were 32.2, 6.7, and 47.3%, respectively. The ADQ and SSA/P-DQ values found were 0.68 and 0.14, respectively. After approximately 500 procedures, both ADQ and SSA/P-DQ became stable. Interclass correlation coefficient (ICC) for the prediction of ADR from ADQ was excellent for all endoscopists that performed >177 procedures in that year (ICC 0.84).
    Conclusions: ADQ and SSA/P-DQ values were consistent when over 500 procedures were analyzed. ADQ had an excellent correlation with ADR when >177 procedures per endoscopist were evaluated.

  • Cite this article

    Leonardo Zorron Cheng Tao Pu, Gurfarmaan Singh, Khizar Rana, Masanao Nakamura, Takeshi Yamamura, Sudarshan Krishnamurthi, Amanda Ovenden, Suzanne Edwards, Andrew Ruszkiewicz, Yoshiki Hirooka, Mitsuhiro Fujishiro, Alastair D. Burt, Rajvinder Singh. 2020. Polyp Detection Rate as a Surrogate for Adenoma and Sessile Serrated Adenoma/Polyp Detection Rates. Gastrointestinal Tumors. 7:5622 doi: 10.1159/000505622
    Leonardo Zorron Cheng Tao Pu, Gurfarmaan Singh, Khizar Rana, Masanao Nakamura, Takeshi Yamamura, Sudarshan Krishnamurthi, Amanda Ovenden, Suzanne Edwards, Andrew Ruszkiewicz, Yoshiki Hirooka, Mitsuhiro Fujishiro, Alastair D. Burt, Rajvinder Singh. 2020. Polyp Detection Rate as a Surrogate for Adenoma and Sessile Serrated Adenoma/Polyp Detection Rates. Gastrointestinal Tumors. 7:5622 doi: 10.1159/000505622
    shu

Figures(2)  /  Tables(4)

Download PDF

Article Metrics

Article views(593) PDF downloads(395)

Other Articles By Authors

Research Article   Open Access    

Polyp Detection Rate as a Surrogate for Adenoma and Sessile Serrated Adenoma/Polyp Detection Rates

  • a.

    Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia

  • b.

    Department of Gastroenterology and Hepatology, Nagoya University, Nagoya, Japan

  • c.

    Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan

  • d.

    Department of Gastroenterology, Lyell McEwin Hospital, Adelaide, SA, Australia

  • e.

    Adelaide Health Technology Assessment, School of Public Health, University of Adelaide, Adelaide, SA, Australia

  • f.

    Department of Pathology, Lyell McEwin Hospital, Adelaide, SA, Australia

  • g.

    Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, Toyoake, Japan

  • Corresponding author: Dr. Leonardo Zorron Cheng Tao Pu Faculty of Health and Medical Sciences Adelaide Medical School, University of Adelaide 4 North Terrace, Adelaide SA 5000 (Australia) Leonardo.zorronchengtaopu@adelaide.edu.au 
  • Received: 25 October 2019
  • Accepted: 25 December 2019
  • Published online: 11 February 2020
Gastrointestinal Tumors  7,  Article number: 10.1159/000505622  (2020)  |  Cite this article

Abstract: 

Introduction: Quality measures for colonoscopy such as adenoma detection rate (ADR) have been proposed to be surveilled for ensuring minimum standards. However, its direct measurement is time consuming and often neglected. Extrapolating ADR and other quality measures from polyp detection rate (PDR) can be a pragmatic alternative.
Objective: To determine quotients for estimating ADR and sessile serrated adenoma/polyp detection rate (SSA/P-DR) from PDR in an Australian cohort.
Methods: Consecutive adult patient colonoscopies during a 1-year period were retrospectively assessed in a single Australian tertiary endoscopy center. Adenoma detection quotient (ADQ) and SSA/P detection quotient (SSA/P-DQ) were defined as the division of ADR and SSA/P-DR by PDR, respectively. The primary outcome was the number of procedures to achieve a stable cumulative ADQ and SSA/P-DQ. Secondary outcomes included evaluation of ADQ and SSA/P-DQ in different subsets.
Results: In total, 2, 657 colonoscopies were performed by 15 endoscopists in 2016. The ADR, SSA/P-DR, and PDR found were 32.2, 6.7, and 47.3%, respectively. The ADQ and SSA/P-DQ values found were 0.68 and 0.14, respectively. After approximately 500 procedures, both ADQ and SSA/P-DQ became stable. Interclass correlation coefficient (ICC) for the prediction of ADR from ADQ was excellent for all endoscopists that performed >177 procedures in that year (ICC 0.84).
Conclusions: ADQ and SSA/P-DQ values were consistent when over 500 procedures were analyzed. ADQ had an excellent correlation with ADR when >177 procedures per endoscopist were evaluated.

  • About this article
    Cite this article
    Leonardo Zorron Cheng Tao Pu, Gurfarmaan Singh, Khizar Rana, Masanao Nakamura, Takeshi Yamamura, Sudarshan Krishnamurthi, Amanda Ovenden, Suzanne Edwards, Andrew Ruszkiewicz, Yoshiki Hirooka, Mitsuhiro Fujishiro, Alastair D. Burt, Rajvinder Singh. 2020. Polyp Detection Rate as a Surrogate for Adenoma and Sessile Serrated Adenoma/Polyp Detection Rates. Gastrointestinal Tumors. 7:5622 doi: 10.1159/000505622
    Leonardo Zorron Cheng Tao Pu, Gurfarmaan Singh, Khizar Rana, Masanao Nakamura, Takeshi Yamamura, Sudarshan Krishnamurthi, Amanda Ovenden, Suzanne Edwards, Andrew Ruszkiewicz, Yoshiki Hirooka, Mitsuhiro Fujishiro, Alastair D. Burt, Rajvinder Singh. 2020. Polyp Detection Rate as a Surrogate for Adenoma and Sessile Serrated Adenoma/Polyp Detection Rates. Gastrointestinal Tumors. 7:5622 doi: 10.1159/000505622
    shu

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return