ABSTRACT
Purpose: CRC prognosis has improved through guideline-based care. COVID-19 pandemic lead to re-allocation of health care resources potentially putting sections of cancer care at a disadvantage. We compared enrollment and clinical subgroups into our registry before and during the first (fw) and second wave (sw) of the COVID-19 pandemic. Method(s): CPP assembles clinical, histo-pathological and molecular data of pts. with resected CRC. Prospectively enrolled pts. during the fw (4-6/2020) and the sw (10-12/2020) were analyzed, focusing on total numbers, age and sex compared to corresponding pre-pandemic intervals of 2019. Due to site expansion (70 to 161) of CPP we calculated quarterly counts per site and in relation to total enrollment. Result(s): 2221 pts. enrolled into CPP during 2019 and 2020 were included, 47 % female (F) /53 % male (M). Mean age in 2019 was 71.9 years (y) vs 71.6 y in 2020. Mean number of pts. enrolled in CPP with primary diagnosis of CRC per site 2019/2020: fw 8,5/6.9 and sw 6.2/5.8. Evaluation for age showed: 2019%/2020% fw >70 y was 52.5/53.5 and <=70 y 47.5/ 46.5 respectively;for the sw > 70 y was 45.6/ 53.5;<=70 y 54.4/46.5. M vs F in fw 2019%/2020% M 50.5/61;F 49.5/39;in sw M 57.6/56;F 42.4/44. Discussion(s): CPP did not detect substantial differences in total counts of enrolled patients or distribution of age and sex. We detected a slight dip in enrollment together with a small shift toward men in fw as well as to elderly pts. in sw. Enrollment of pts. into registries seems to be feasible even in pandemic situation. Potentially, a possible data bias as preference of registry enrollment over randomized controlled trials. Conclusion(s): Real world data from CPP must be complemented by additional data for comprehensive assessment of colon cancer care and will be complemented for final data presentation in 2022 with data collected during the third and omicron wave.
ABSTRACT
Background: CRC still is one of the leading causes of cancer related death though prognosis has improved through guideline based management. The COVID-19 pandemic lead to re-allocation of resources subordinating all sections of care for CRC patients. We present data on changes of CRC care during the pandemic from 22 German AIO CC and our high volume Institute of Pathology (pathology). Methods: Data was collected retrospectively comparing the months (mo) of the first wave (fw) (4-6/2020) and second wave (sw) (11-12/2020) of the pandemic with corresponding periods (cp) in 2019 focusing on the number of precancerous (ICD-O/0+2) and malignant (ICD-O/ 3+6) colorectal lesions (CRL) diagnosed by our pathology, the number/stage of primary diagnoses (PD) and the number of surgeries (surg) at AIO CC. There, quality criteria of CRC care were also assessed (number of PD discussed within a multidisciplinary tumor board (tb), received social service (soc)/ psychological (psy) counseling or recruited into a clinical trial). Statistical analysis was performed using students t-test for paired data. Results: Numbers of CRL detected upon histology (row 1-3), number of cases, surg and quality criteria from AIO CC (row 4-9) are displayed in the table. We saw a dip in diagnosed CRL and number of surg (p=0.007) only during fw, whereas PD dipped significantly in both waves. A significant reduction in diagnosis of stage III CRC was detected for 2019 vs. 2020 (p=0.001), not for other stages. Quality criteria showed a significant reduction in clinical trial inclusion, a small dip in soc/psy counseling and persistently high tb presentation. Conclusions: We detected a significant decrease of premalignant lesions and primary cancers during the first year of the pandemic which may impact cancer mortality in the future. Certified German CC provided CRC care with significant reduction in clinical trial inclusion only, suggesting high stability of established certified cancer care infrastructure.