Background/Objective: Gastrointestinal tract cancers may have been severely affected by the COVID-19 pandemic. The limitations of digestive endoscopy, the fear effect, and restrictions on hospital admissions during the pandemic may have delayed the presentation of patients to hospitals and surgical procedures and may have impacted overall survival. Methods: We conducted an observational, cross-sectional study of esophageal, gastric, small bowel, and colorectal cancer patients admitted to our hospital between 1 January 2018 and 31 December 2021. We analyzed the hospitalization rates, pathological type, the onset by complications, staging, and surgery during the pandemic compared to a pre-pandemic period (January 2018-December 2019). Results: During 2018-2021, 1613 patients with malignant gut tumors were admitted to our hospital (112 esophageal and eso-cardial tumors, 419 gastric tumors, 34 small bowel tumors, and 1058 colorectal tumors). Admission was reduced by 30.3% for esophageal and eso-cardial malignant tumors, 27.6% for gastric tumors, and 17.3% for malignant colorectal tumors. For esophageal and eso-cardial tumors, a higher frequency of stenosing tumors and palliative gastrostomies was noted. More stage III gastric cancers and a lower rate of vascular invasion were recorded during the pandemic. No differences regarding small bowel tumors were noted. In colorectal tumors, slightly more stage II cancers and more stenosing tumors were recorded, but occlusive, bleeding, and perforated tumors were similar; also, surgical rates were similar, with a two-fold higher perioperative mortality. The overall survival of gastric and colorectal carcinoma was higher during the pandemic (but with no statistical significance), although a clear explanation has not emerged. Conclusions: The impact of the COVID-19 pandemic on gut cancer included a significantly lower rate of newly diagnosed admissions, more stage II colorectal and stage III gastric carcinomas, a two-fold higher perioperative mortality for colorectal carcinoma, and a trend for a surprisingly higher overall survival for gastric and colorectal tumors (but without statistical significance). Future research is necessary for assessing long-term impact.

Management of rectal cancer is increasingly complex. Leading societies describe metrics of high-quality perioperative rectal cancer care with the goal of reducing variation in practice and improving outcomes. This study was designed to describe the impact of targeted feedback at the institutional level on improving achievement of rectal cancer quality metrics.

Adult elective rectal cancer resections performed at institutions that continuously participated in SCOAP between 2011 and 2022 were included for analysis. Quality metrics evaluated were preoperative MRI (MRI), determination of tumor location (TL), use of neoadjuvant chemoradiation (NAC), performance of a total mesorectal excision (TME), 12+ lymph nodes resected (LN), and composite negative margins (NM). In-depth feedback on these metrics was provided by SCOAP at the end of 2015 and 2019. Achievement of the metrics was evaluated before (2011-2016), between (2017-2019), and after (2020-2022) feedback events to determine effect on achievement.

1962 resections were performed at 19 institutions. There were statistically significant increases in MRI(2011-2016 = 32 %, 2017-2019 = 88 %, 2020-2022 = 92 %;p < 0.01), TME(47 %, 68 %, 80 %;p < 0.01), and LN(76 %, 86 %, 86 %;p < 0.01) after one or both feedback events. TL(67 %, 69 %, 70 %;p = 0.558), NAC(62 %, 63 %, 67 %;p = 0.124), and NM(98 %, 97 %, 96 %;p = 0.39) were not significantly different. Mean composite score for metrics increased after each feedback (2011-2016 = 3.8±1.4; 2017-2019 = 4.3±1.4; 2020-2022 = 4.5±1.5;p < 0.01).

Interval, in-depth feedback on rectal cancer quality process metrics was associated with increased achievement of several metrics and overall number of metrics achieved. Broader implementation of this feedback method could further advance the quality of rectal cancer surgical care.

The COVID-19 pandemic significantly affected global healthcare systems, revealing their resilience to crises. Despite this, national-level research on its impact across key healthcare domains-such as acute and chronic disease management, cancer screening and care, mental health, and palliative care-is scarce. This study examines the pandemic's impact on contacts, quality of care, and social disparity in these healthcare domains to guide better preparedness for future health emergencies.

The study utilized data from the Danish National Clinical Quality Registries, covering January 2015 to June 2022, to create a nationwide cohort for comparing healthcare metrics across the pandemic's phases and the prepandemic period. Healthcare contacts were assessed through descriptive analyses, while the quality of care and social disparities were analysed using multivariable regression models, providing estimated prevalence ratios and 95% confidence intervals.

The first wave of the COVID-19 pandemic in Denmark led to community and healthcare lockdowns, which were associated with fewer hospital contacts and reduced participation in national cancer screening programs. However, a gradual recovery towards prepandemic levels was found, with the exceptions of chronic obstructive pulmonary disease contacts and colorectal cancer incidence. Overall, the quality of care across various healthcare domains in Denmark remained largely unchanged or improved slightly during the pandemic. However, social disparities in contacts were increased across all examined healthcare domains, with patients who were immigrants, living alone, had limited educational level or low income experiencing reduced contact compared to the prepandemic period.

Overall, the Danish healthcare system appeared to be resilient and largely unaffected throughout the pandemic, and the quality of care in several healthcare domains remained high. Nevertheless, the increasing social disparities in healthcare contacts during the pandemic demands attention. In preparing for future health crises, it is important to address and mitigate potential social inequalities, focusing on achieving equity in healthcare.

The management of patients with COVID-19 infection has placed great pressure on the healthcare systems around the world. The aim of this study was to investigate the impact of the COVID-19 pandemic on the treatment outcomes of patients with rectal cancer by comparing them to those of patients with the same diagnosis in the pre-pandemic period.

Retrospective data analysis of patients undergoing multimodal treatment for rectal cancer at the four university hospitals during the COVID-19 pandemic (2020-2021) and the 2-year pre-pandemic period (2018-2019).

A total of 693 patients (319 in the pre-pandemic period and 374 in the pandemic period) with rectal cancer were included in the study. The demographic and clinical characteristics of patients in both study periods were comparable, as was the spectrum of surgical procedures. Palliative surgery was more common in the pandemic period (18% vs 13%, p=0.084). The proportion of patients undergoing minimally invasive surgery was higher during the COVID-19 pandemic (p=0.025). There were no statistically significant differences between the study periods in the incidence/severity of post-operative complications, 30-day mortality and length of hospital stay. The number of positive resection margins was similar (5% vs 5%). Based on these results, COVID-19 had no effect on the postoperative morbidity and mortality in patients undergoing surgery for rectal cancer. Neoadjuvant treatment was more common in the pre-pandemic period (50% vs 45%). Long-course RT was predominantly offered in the pre-pandemic period, short-course RT during the pandemic. Significantly shorter "diagnosis-surgery" intervals were observed during the pandemic (23 days vs 33 days, p=0.0002). The "surgery-adjuvant therapy" interval was similar in both analysed study periods (p=0.219).

Our study showed, that despite concerns about the COVID-19 pandemic, multimodal treatment of rectal cancer was associated with unchanged postoperative morbidity rates, increased frequency of short-course neoadjuvant RT administration and shorter "diagnosis-surgery" intervals.

The COVID-19 pandemic disrupted health care delivery, including cancer screening practices. This study sought to determine the impact of the COVID-19 pandemic lockdown on colorectal cancer (CRC) screening relative to social vulnerability.

Using the Medicare Standard Analytic File, individuals 65 years old or older who were eligible for guideline-concordant CRC screening between 2019 and 2021 were identified. These data were merged with the Center for Disease Control Social Vulnerability Index (SVI) dataset. Changes in county-level monthly screening volumes relative to the start of the COVID-19 pandemic (March 2020) and easing of restrictions (March 2021) were assessed relative to SVI.

Among 10,503,180 individuals continuously enrolled in Medicare with no prior diagnosis of CRC, 1,362,457 (12.97%) underwent CRC screening between 2019 and 2021. With the COVID-19 pandemic, CRC screening decreased markedly across the United States (median monthly screening: pre-pandemic [n = 76,444] vs pandemic era [n = 60,826]; median Δn = 15,618; p < 0.001). The 1-year post-pandemic overall CRC screening utilization generally rebounded to pre-COVID-19 levels (monthly median screening volumes: pandemic era [n = 60,826] vs post-pandemic [n = 74,170]; median Δn = 13,344; p < 0.001). Individuals residing in counties with the highest SVI experienced a larger decline in CRC screening odds than individuals residing in low-SVI counties (reference, low SVI: pre-pandemic high SVI [OR, 0.85] vs pandemic high SVI [OR, 0.81] vs post-pandemic high SVI [OR, 0.85]; all p < 0.001).

The COVID-19 pandemic was associated with a decrease in CRC screening volumes. Patients who resided in high social vulnerability areas experienced the greatest pandemic-related decline.

To avoid delay in oncological treatment, a 6-weeks norm for time to treatment has been agreed on in The Netherlands. However, the impact of the COVID-19 pandemic on health systems resulted in reduced capacity for regular surgical care. In this study, we investigated the impact of the COVID-19 pandemic on time to treatment in surgical oncology in The Netherlands.

A population-based analysis of data derived from five surgical audits, including patients who underwent surgery for lung cancer, colorectal cancer, upper gastro-intestinal, and hepato-pancreato-biliary (HPB) malignancies, was performed. The COVID-19 cohort of 2020 was compared to the historic cohorts of 2018 and 2019. Primary endpoints were time to treatment initiation and the proportion of patients whose treatment started within 6 weeks. The secondary objective was to evaluate the differences in characteristics and tumour stage distribution between patients treated before and during the COVID-19 pandemic.

A total of 14,567 surgical cancer patients were included in this study, of these 3292 treatments were started during the COVID-19 pandemic. The median time to treatment decreased during the pandemic (26 vs. 27 days, p < 0.001) and the proportion of patients whose treatment started within 6 weeks increased (76% vs. 73%, p < 0.001). In a multivariate logistic regression analysis, adjusting for patient characteristics, no significant difference in post-operative outcomes between patients who started treatment before or after 6 weeks was found. Overall, the number of procedures performed per week decreased by 8.1% during the pandemic. This reduction was most profound for patients with stage I lung carcinoma and colorectal carcinoma. There were fewer patients with pulmonary comorbidities in the pandemic cohort (11% vs. 13%, p = 0.003).

Despite pressure on the capacity of the healthcare system during the COVID-19 pandemic, a larger proportion of surgical oncological patients started treatment within six weeks, possibly due to prioritisation of cancer care and reductions in elective procedures. However, during the pandemic, a decrease in the number of surgical oncological procedures performed in The Netherlands was observed, especially for patients with stage I disease.

Colorectal cancer (CRC) screening is a fundamental tool in the prevention and early detection of one of the most prevalent and lethal cancers. Over the years, screening, particularly in those settings where it is well organized, has succeeded in reducing the incidence of colon and rectal cancer and improving the prognosis related to them. Despite considerable advancements in screening technologies and strategies, the effectiveness of CRC screening programs remains less than optimal. This paper examined the multifaceted reasons behind the persistent lack of effectiveness in CRC screening initiatives. Through a critical analysis of current methodologies, technological limitations, patient-related factors, and systemic challenges, we elucidated the complex interplay that hampers the successful reduction of CRC morbidity and mortality rates. While acknowledging the advancements that have improved aspects of screening, we emphasized the necessity of addressing the identified barriers comprehensively. This study aimed to raise awareness of how important CRC screening is in reducing costs for this disease. Screening and early diagnosis are not only important in improving the prognosis of patients with CRC but can lead to an important reduction in the cost of treating a disease that is often diagnosed at an advanced stage. Spending more sooner can mean saving money later.

In the Netherlands, the COVID-19 pandemic resulted in a temporary halt of population screening for cancer and limited hospital capacity for non-COVID care. We aimed to investigate the impact of the pandemic on the in-hospital diagnostic pathway of breast cancer (BC) and colorectal cancer (CRC).

71,159 BC and 48,900 CRC patients were selected from the Netherlands Cancer Registry. Patients, diagnosed between January 2020 and July 2021, were divided into six periods and compared to the average of patients diagnosed in the same periods in 2017-2019. Diagnostic procedures performed were analysed using logistic regression. Lead time of the diagnostic pathway was analysed using Cox regression. Analyses were stratified for cancer type and corrected for age, sex (only CRC), stage and region.

For BC, less mammograms were performed during the first recovery period in 2020. More PET-CTs were performed during the first peak, first recovery and third peak period. For CRC, less ultrasounds and more CT scans and MRIs were performed during the first peak. Lead time decreased the most during the first peak by 2 days (BC) and 8 days (CRC). Significantly fewer patients, mainly in lower stages, were diagnosed with BC (-47%) and CRC (-36%) during the first peak.

Significant impact of the COVID-19 pandemic was found on the diagnostic pathway, mainly during the first peak. In 2021, care returned to the same standards as before the pandemic. Long-term effects on patient outcomes are not known yet and will be the subject of future research.

The COVID-19 pandemic impacted cancer diagnosis and treatment. However, little is known about end-of-life cancer care during the pandemic.

To investigate potentially inappropriate end-of-life hospital care for cancer patients before and during the COVID-19 pandemic.

Retrospective population-based cohort study using data from the Netherlands Cancer Registry and the Dutch National Hospital Care Registration. Potentially inappropriate care in the last month of life (chemotherapy administration, >1 emergency room contact, >1 hospitalization, hospitalization >14 days, intensive care unit admission or hospital death) was compared between four COVID-19 periods and corresponding periods in 2018/2019.

A total of 112,919 cancer patients (⩾18 years) who died between January 2018 and May 2021 were included.

Fewer patients received potentially inappropriate end-of-life care during the COVID-19 pandemic compared to previous years, especially during the first COVID-19 peak (22.4% vs 26.0%). Regression analysis showed lower odds of potentially inappropriate end-of-life care during all COVID-19 periods (between OR 0.81; 95% CI 0.74-0.88 and OR 0.92; 95% CI 0.87-0.97) after adjustment for age, sex and cancer type. For the individual indicators, fewer patients experienced multiple or long hospitalizations, intensive care unit admission or hospital death during the pandemic.

Cancer patients received less potentially inappropriate end-of-life care during the COVID-19 pandemic. Because several factors may have contributed, it is unclear whether this reflects better quality care. However, these findings raise important questions about what pandemic-induced changes in care practices can help provide appropriate end-of-life care for future patients in the context of increasing patient numbers and limited resources.

This retrospective study investigates the impact of the COVID-19 pandemic on the surgical management of patients with colon cancer in a tertiary University Hospital in Timisoara, Romania. Data from 867 patients who underwent surgical interventions for this condition between 26 February 2019 and 25 February 2023 were meticulously analyzed to evaluate substantial shifts in the management and outcomes of these patients in comparison to the pre-pandemic era. The results reveal a substantial decrease in elective surgical procedures (p < 0.001) and a significant increase in emergency interventions (p < 0.001). However, postoperative mortality did not show significant variations. Of concern is the diagnosis of patients at more advanced stages of colon cancer, with a significant increase in Stage IV cases in the second year of the pandemic (p = 0.045). Average hospitalization durations recorded a significant decrease (p < 0.001) during the pandemic, and an inverse correlation between patient age and surgery duration was reported (p = 0.01, r = -0.088). This analysis provides a comprehensive perspective on how the pandemic has influenced the management of colon cancer, highlighting significant implications for the management and outcomes of these patients.

Efforts to control the COVID-19 pandemic might reduce accessibility for diagnostics and treatment of colorectal cancer. A universal public healthcare system may modify the availability of healthcare services. The aim of this study was to investigate changes in the quality of care for patients with colorectal cancer during the COVID-19 pandemic.

Nationwide data from the Danish Colorectal Cancer database and Statistics Denmark on the number of new diagnoses, disease and health behaviour measures, socioeconomic measures, clinical quality measures and time to adjuvant chemotherapy were retrieved. Measures during the COVID-19 pandemic in 2020 and the different pandemic periods were compared to the pre-pandemic period.

In 2020, 4035 patients were diagnosed with colorectal cancer, compared with 4346 in 2019 and 4496 in 2018. During the pandemic, patients were more likely to have UICC stage I disease (25.0% vs 23.4%; PR=1.07(95% confidence interval: 1.00;1.15)), belonging to the highest income quintile (PR=1.06(0.98;1.14), receive surgery with a curative aim (PR=1.02(1.01;1.03)), and to be operated on by a specialist (PR=1.07(1.06;1.08)), and less likely to be 60-69 years of age (PR=0.93(0.86;1.00)), non-western immigrants (PR=0.93(0.86;1.00)), diagnosed by screening (PR=0.79(0.73;0.86)) and receiving an acute operation (PR=0.77(0.66;0.91)). Furthermore, during the pandemic, 11.4% fewer patients waited 28 days or longer for initiation of adjuvant oncological treatment.

Based on nationwide data, we observed no major adverse effect on disease measures or clinical quality in a tax funded health care system. However, small changes in the socioeconomic composition of the patient population were observed.

The coronavirus disease 2019 (COVID-19) pandemic forced us to accept changes in our usual diagnostic procedures and treatments for colorectal cancer. This study aimed to determine the impact of the pandemic on colorectal cancer treatment in Japan.

The number of colorectal surgeries, stoma constructions, stent placements or long tube insertions, and neoadjuvant chemoradiotherapies were determined each month using sampling datasets from the National Database of Health Insurance Claims and Specific Health Checkups of Japan. The observation periods before and during the pandemic were January 2015 to January 2020 and April 2020 to January 2021, respectively. An interrupted time-series analysis was used to estimate the changes in the number of procedures during the pandemic.

The number of endoscopic surgeries for colon cancer significantly decreased in April and July 2020 and for rectal cancer in April 2020. Additionally, the number of laparoscopic and open surgeries for colon cancer significantly decreased in July 2020 and October 2020, respectively. The number of stoma constructions and stent placements or long tube insertions did not increase during the observation period. Neoadjuvant chemoradiotherapy for rectal cancer significantly increased in April 2020 but levels returned shortly thereafter. These results suggest that the recommendations to overcome the pandemic proposed by expert committees, including the replacement of laparoscopic surgery with open surgery, stoma construction to avoid anastomotic leak, and replacement of surgery on the ileus with stent placement, were not widely implemented in Japan. However, as an exception, neoadjuvant chemoradiotherapy for rectal cancer was performed as an alternative treatment to delay surgery in small quantities.

A declining number of surgeries raises concerns about cancer stage progression; however, we found no evidence to suggest cancer progression from the trajectory of the number of stoma constructions and stent placements. In Japan, even during the pandemic, conventional treatments were performed.

Management of colorectal cancer (CRC) was severely affected by the changes implemented during the pandemic, and this resulted in delayed elective presentation, increased emergency presentation, reduced screening and delayed definitive therapy. This review was conducted to analyze the impact of the coronavirus disease 2019 (COVID-19) pandemic on management of CRC and to identify the changes made in order to adapt to the pandemic. We performed a literature search in PubMed, Medline, Index Medicus, EMBASE, SCOPUS, Reference Citation Analysis (https://www.referencecitationanalysis.com/) and Google Scholar using the following keywords in various combinations: Colorectal cancer, elective surgery, emergency surgery, stage upgrading, screening, surveillance and the COVID-19 pandemic. Only studies published in English were included. To curtail the spread of COVID-19 infection, there were modifications made in the management of CRC. Screening was limited to high risk individuals, and the screening tests of choice during the pandemic were fecal occult blood test, fecal immunochemical test and stool DNA testing. The use of capsule colonoscopy and open access colonoscopy was also encouraged. Blood-based tests like serum methylated septin 9 were also encouraged for screening of CRC during the pandemic. The presentation of CRC was also affected by the pandemic with more patients presenting with emergencies like obstruction and perforation. Stage migration was also observed during the pandemic with more patients presenting with more advanced tumors. The operative therapy of CRC was altered by the pandemic as more emergencies surgeries were done, which may require exteriorization by stoma. This was to reduce the morbidity associated with anastomosis and encourage early discharge from the hospital. There was also an initial reduction in laparoscopic surgical procedures due to the fear of aerosols and COVID-19 infection. As we gradually come out of the pandemic, we should remember the lessons learned and continue to apply them even after the pandemic passes.

The COVID-19 pandemic had a major impact on the health services worldwide. We aimed to investigate the impact of the pandemic on colorectal cancer (CRC) care in the Netherlands in 2020.

CRC patients, diagnosed in 2018-2020 in the Netherlands, were selected from the Netherlands Cancer Registry (NCR). The year 2020 was divided in four periods reflecting COVID-19 developments in the Netherlands (pre-COVID, 1st peak, recovery period, 2nd peak) and compared with the same periods in 2018/2019. Patient characteristics and treatment were compared using the Chi-squared test. Median time between diagnosis and treatment, and between (neo)adjuvant therapy and surgery were analyzed by the Mann-Whitney U test.

In total, 38,021 CRC patients were diagnosed in 2018/2019 (n = 26,816) and 2020 (n = 11,205). Median time between diagnosis and initial treatment decreased on average 4 days and median time between neoadjuvant radiotherapy and surgery in clinical stage II or III rectal cancer patients increased on average 34 days during the three COVID-19 periods compared to the same periods of 2018/2019. The proportion of colon cancer patients that underwent elective surgery significantly decreased with 3.0% during the 1st peak. No differences were found in the proportion of patients who received (neo)adjuvant therapy, systemic therapy, or no anti-cancer treatment.

Only minor changes in the care for CRC patients occurred during the COVID-19 pandemic, mostly during the 1^st peak. In conclusion, the impact on CRC care in the Netherlands was found to be limited. However, long-term effects cannot be precluded.