CC BY-NC-ND 4.0 · Endosc Int Open 2021; 09(09): E1315-E1320
DOI: 10.1055/a-1497-1123
Review

Impact of restrictions due to COVID-19 on a quality-assured screening colonoscopy program

Anna Hinterberger
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Lena Jiricka
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Elisabeth A. Waldmann
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Daniela Penz
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Barbara Majcher
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Arno Asaturi
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Aleksandra Szymanska
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Lisa Rockenbauer
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Arnulf Ferlitsch
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Michael H. Trauner
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
,
Monika Ferlitsch
1   Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Austria
2   Quality Assurance Working Group, Austrian Society for Gastroenterology and Hepatology, Austria
› Author Affiliations

Abstract

Background and study aims On February 25, 2020, the first patient was diagnosed with COVID-19 in Austria. On March 16, 2020, the Austrian government imposed restrictions and subsequently the Austrian Medical Association recommended minimizing screening examinations in compliance with government restrictions. The aims of this study were to evaluate the impact of this recommendation on the number of colonoscopies performed weekly and detection of non-advanced adenomas, advanced adenomas (AA) and colorectal cancer (CRC) and to calculate how many undetected adenomas could have developed into CRC.

Methods We analyzed the number of colonoscopies and pathological findings within a quality assured national colorectal cancer screening program before the COVID-19 pandemic (March 1,t 2019 to September 1, 2019, Period 1) and compared those rates to months during which access to colonoscopy was limited (March 1, 2020 and September 1, 2020, Period 2) with a Wilcoxon-rank-test and a chi-square test.

Results A total of 29,199 screening colonoscopies were performed during Period 1 and 24,010 during Period 2. The mean rate of colonoscopies per week during Period 1 was significantly higher than during Period 2 (808,35 [SD = 163,75] versus 594,50 [SD = 282,24], P = 0.005). A total of 4,498 non-advanced adenomas were detected during Period 1 versus 3,562 during Period 2 (P < 0.001). In total 1,317 AAs and 140 CRCs were detected during Period 1 versus 919 AAs and 106 CRCs during Period 2. These rates did not differ significantly (P = 0.2 and P = 0.9).

Conclusions During the COVID-19 crisis, the number of colonoscopies performed per week was significantly lower compared to the year before, but there was no difference in the detection of CRCs and AAs.



Publication History

Received: 10 November 2020

Accepted: 04 March 2021

Article published online:
16 August 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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