Adherence to colonoscopy at 1 year following resection of localized colon cancer: a retrospective cohort study

Management pattern and medication-related harms and its predictors in colorectal cancer patients: an institutional-based retrospective study

Introduction

Data on colorectal cancer (CRC) patients' thorough management practices and medication-related harms (MRH) are scarce. This study's aim was to investigate the MRHs in patients receiving CRC chemotherapy at the comprehensive specialized hospital of the University of Gondar (UoGCSH).

Methods

A registry-based retrospective cohort study was conducted on CRC patients at the UoGCSH during 2017-2021. From February to May 2022, medical records were reviewed using a pretested data collection tool to collect socio-demographic and disease-related characteristics, MRHs, and medication regimens. MRHs occurrence and adverse drug reactions (ADRs) severity were assessed using standard guidelines and protocols. Version 16/MP of STATA for Windows was used for the analysis. Independent predictors of MRHs were investigated using logistic regression analysis. A p-value ≤0.05 was used to determine an independent variable's statistical significance.

Results

One hundred forty three CRC patients were included, with a mean age of 49.9 ± 14.5 years. About 32.9% and 33.6% had stage II and III cancer, respectively. Significant patients had co-morbidities (15.4%) and complications (13.3%). Fluorouracil (5-FU)-based regimens were given to more than half (56%) of the patients. MRHs were found in 53.1% of the patients, with a mean of 2.45 ± 1.37 MRHs. The most common MRHs were the need for additional drug therapy, sub-therapeutic dose, DDIs, and ADRs. Being on stage IV (AOR = 27.7, 95% CI = 3.85-199.38, p = 0.001), having co-morbidity (AOR = 7.42, 95% CI = 1.80-30.59, p = 0.018) and having complication (AOR = 11.04, 95% CI = 1.72-70.95, p = 0.011) and treated with five or more drugs (AOR = 2.54, 95% CI = 1.07-6.07, p = 0.035) were independent predictors of MRHs.

Conclusion

A fluorouracil-based treatment regimen was most frequently used. MRHs were found in nearly half of CRC patients. Furthermore, MRHs were significantly associated with cancer stage, comorbidity and complication status, and the number of medications used. Because MRHs are common, improving clinical pharmacy services is critical for optimizing drug therapy in CRC patients.

Association Between Patient-Level, Clinic-Level, and Geographical-Level Factors and 1-Year Surveillance Colonoscopy Adherence

INTRODUCTION

Surveillance colonoscopy 1 year after surgical resection for patients with stages I-III colorectal cancer (CRC) is suboptimal, and data on factors associated with lack of adherence are limited. Using surveillance colonoscopy data from Washington state, we aimed to determine the patient, clinic, and geographical factors associated with adherence.

METHODS

Using administrative insurance claims linked to Washington cancer registry data, we conducted a retrospective cohort study of adult patients diagnosed with stage I-III CRC between 2011 and 2018 with continuous insurance for at least 18 months after diagnosis. We determined the adherence rate to 1-year surveillance colonoscopy and conducted logistic regression analysis to identify factors associated with completion.

RESULTS

Of 4,481 patients with stage I-III CRC identified, 55.8% completed a 1-year surveillance colonoscopy. The median time to colonoscopy completion was 370 days. On multivariate analysis, older age, higher-stage CRC, Medicare insurance or multiple insurance carriers, higher Charlson Comorbidity Index score, and living without a partner were significantly associated with decreased adherence to 1-year surveillance colonoscopy. Among 29 eligible clinics, 51% (n = 15) reported lower-than-expected surveillance colonoscopy rates based on patient mix.

DISCUSSION

Surveillance colonoscopy 1 year after surgical resection is suboptimal in Washington state. Patient and clinic factors, but not geographic factors (Area Deprivation Index), were significantly associated with surveillance colonoscopy completion. These data will inform the development of patient-level and clinic-level interventions to address an important quality-of-care issue across Washington.

Colonoscopy, imaging, and carcinoembryonic antigen: Comparison of guideline adherence to surveillance strategies in patients who underwent resection of colorectal cancer - A systematic review and meta-analysis

INTRODUCTION

Almost one-third of patients with colorectal cancer (CRC) experience recurrence after resection. Adherence to surveillance guidelines largely dictates efficacy in early detection of recurrence. We sought to assess and compare adherence to postoperative surveillance guidelines for colonoscopy, imaging, and Carcinoembryonic Antigen (CEA).

METHODS

PubMed, Medline, Embase, Scopus, Cochrane, Web of Science, and CINAHL were systematically searched. Random-effects meta-analysis was performed and pooled adherence to each surveillance strategy was assessed for CEA, imaging, and colonoscopy.

RESULTS

Overall 14 studies (55,895 patients) met the inclusion criteria. Adherence to colonoscopy guidelines was the highest (70%, 95%CI 67-73), followed by imaging (63%, 95%CI 47-80), and CEA (54%; 95%CI 42-66). Among 7 (50%) studies that examined adherence to the American Society of Clinical Oncology guidelines, compliance with colonoscopy was the highest (73%; 95% CI 70-76), followed by imaging (58%; 95% CI 37-78), and CEA (45%; 95%CI 37-52). Of note, guideline adherence to CEA testing was much lower than colonoscopy among patients with colon (OR 0.21; 95%CI 0.20-0.22) and rectal cancer (OR 0.25; 95%CI 0.23-0.28) (both p < 0.05). This was also noted when compared with imaging recommendations among older patients (OR = 0.62; 95%CI 0.42-0.93) and patients with stage II, (OR = 0.80; 95%CI 0.76-0.84) and stage III disease (OR = 0.88; 95%CI 0.82-0.94) (all p < 0.05).

CONCLUSION

While guideline adherence to postoperative surveillance with colonoscopy was high, adherence to CEA testing and imaging surveillance strategies was markedly lower following CRC resection. Future studies should investigate avenues to improve compliance with surveillance guidelines among health care providers and patients to optimize postoperative follow-up for CRC.

Clinical pattern and drug-related problems among colorectal cancer patients at oncology center in Ethiopia: A hospital-based study

Objective:

Despite the fact that cancer patients are highly susceptible to drug-related problems due to the effects of cytotoxic agents, data are limited due to a lack of studies on those patients. Hence, we aimed to investigate drug-related problems among patients diagnosed with colorectal cancer.

Method:

A registry-based cross-sectional study was conducted on colorectal cancer patients at the Felege Hiwot Comprehensive Specialized Hospital. Socio-demographic and disease-related characteristics, treatment regimens, and drug-related problems were recorded by reviewing medical records. Standard guidelines, protocols, and databases were used to evaluate the occurrence of drug-related problems and the severity of adverse drug reactions. For the analysis, Stata version 16/MP for Windows was used. Logistic regression analysis was employed to investigate the potential-associated factors of drug-related problems. A p-value ⩽ 0.05 was used to declare the statistical significance of each independent variable.

Results:

A total of 150 colorectal cancer patients were included, with a mean age of 51.4 ± 13.8 years. About 30% and 41.3% had stage II and stage III cancers, respectively. About three-quarters (73.8%) of the patients were given 5-fluorouracil-based combination regimens. The prevalence of drug-related problems was found to be 48.7%, with a mean of 2.12 ± 0.93 drug-related problems. In the Felege Hiwot Comprehensive Specialized Hospital, drug–drug interactions and adverse drug reactions were the most prevalent drug-related problems, which accounted for 50 (32.7%) and 49 (32%) cases, respectively. Being elderly (>50 years old) (p = 0.013), having co-morbidity (p = 0.001), and being on five or more medications (p = 0.002) were independent predictors of drug-related problems.

Conclusion:

Fluorouracil-based chemotherapy was the most frequently used treatment regimen. Almost, half of the colorectal cancer patients had one or more drug-related problems. About one-third of patients had adverse drug reactions and drug–drug interactions. Furthermore, age, co-morbidity status, and the number of medications used were significantly associated with drug-related problems. Clinical pharmacy services should be implemented to optimize drug therapy because the majority of colorectal cancer patients have one or more drug-related problems.

Surveillance Patterns for Hepatocellular Carcinoma among Screening-Eligible Patients in the Medicare Population

INTRODUCTION

Routine screening plays a critical role in the diagnosis of hepatocellular carcinoma (HCC), but not all patients undergo consistent surveillance. This study aims to evaluate surveillance patterns and their association with diagnosis stage and survival among Medicare patients at risk for HCC.

PATIENTS AND METHODS

Patients with HCC and guideline-based screening eligibility who underwent imaging with ultrasound or abdominal magnetic resonance imaging (MRI) in the 2 years prior to diagnosis were identified from SEER-Medicare (2008-2015). Three surveillance cohorts were created: diagnostic (imaging only within 3 months prior), intermittent (imaging only once within 2 years prior, excluding diagnostic), and routine (at least two imaging encounters within 2 years prior, excluding diagnostic). Multivariable logistic regression was used to predict early-stage diagnosis (stage I-II), and 5-year survival was evaluated using the accelerated failure time method with Weibull distribution.

RESULTS

Among 2261 eligible patients, 26.1% were classified as diagnostic, 15.8% as intermittent, and 58.1% as routine surveillance. The median age was 74 years (IQR 70-78 years). The majority of patients had a preexisting cirrhosis diagnosis (81.5%). Routine and intermittent, compared with diagnostic, surveillance were predictive of early-stage disease (routine: OR 2.05, 95% CI 1.64-2.56; intermittent: OR 1.43, 95% CI 1.07-1.90). Patients who underwent routine surveillance had significantly lower risk of mortality (HR 0.84, 95% CI 0.75-0.94) compared with the diagnostic group.

CONCLUSIONS

A large proportion of screening-eligible patients do not undergo routine surveillance, which is associated with late-stage diagnosis and higher risk of mortality. These findings demonstrate the impact of timely and consistent healthcare access and can guide interventions for promoting surveillance among these patients.

Inequitable access to surveillance colonoscopy among Medicare beneficiaries with surgically resected colorectal cancer

BACKGROUND

After colorectal cancer (CRC) surgery, surveillance with colonoscopy is an important step for the early detection of local recurrence. Unfortunately, surveillance colonoscopy is underused, especially among racial/ethnic minorities. This study assesses the association between patient and neighborhood factors and receipt of surveillance colonoscopy.

METHODS

This retrospective, population-based cohort study used Surveillance, Epidemiology, and End Results-Medicare linked data (2009-2014). Beneficiaries with surgically resected stage II or III CRC between the ages of 66 and 85 years were identified, and multivariable logistic regression was used to assess the effect of factors on receipt of colonoscopy.

RESULTS

Overall, 57.5% of the patients received initial surveillance colonoscopy. After adjustments for all factors, Blacks and Hispanics had lower odds of receiving colonoscopy than non-Hispanic Whites (NHWs; 29.6% for Blacks; P = .002; 12.9% for Hispanics; P > .05). NHWs with Medicaid coverage had 35% lower odds of surveillance colonoscopy than NHWs without Medicaid coverage. Minority patients with Medicaid were more likely to receive colonoscopy than their racial/ethnic counterparts without Medicaid coverage (P > .05). Hispanics residing in neighborhoods with incomes of ≥$90,000 had significantly lower odds of surveillance colonoscopy than Hispanics residing in neighborhoods with incomes of $0 to $30,000.

CONCLUSIONS

Receipt of initial surveillance colonoscopy remains low, and there are acute disparities between Black and NHW patients. The association between factors that assess a patient's ability to access colonoscopy and actual receipt of colonoscopy suggests inequitable access to surveillance colonoscopy within and across racial/ethnic groups.

Impact of COVID-19 on colorectal cancer disparities and the way forward

In response to the coronavirus disease 2019 (COVID-19) pandemic, the U.S. Surgeon General advised all hospitals and ambulatory care centers to delay nonurgent medical procedures and surgeries. This recommendation, echoed by a multigastroenterology society guideline, led to the suspension of colonoscopies for colorectal cancer (CRC) screening and surveillance. Although this temporary suspension was necessary to contain COVID-19 infections, we as gastroenterologists, patient advocates, and CRC researchers have witnessed the downstream impact of COVID-19 and this recommendation on CRC screening, research, and advocacy. These effects are particularly noticeable in medically underserved communities where CRC morbidity and mortality are highest. COVID-19-related pauses in medical care, as well as shifts in resource allocation and workforce deployment, threaten decades worth of work to improve CRC disparities in medically underserved populations. In this perspective, we present the unique challenges COVID-19 poses to health equity in CRC prevention and provide potential solutions as we navigate these uncharted waters.