Isolated Pericardial Effusion Without Associated Myocarditis in a Small-Cell Lung Cancer Patient Undergoing Atezolizumab Therapy.

Immune checkpoint inhibitors (ICIs) are a form of immunotherapy increasingly utilized in cancer therapies. While offering promise in malignancy treatment, ICIs, including atezolizumab, can elicit immune-related adverse events (irAEs) such as cardiotoxicity. We present the case of a 67-year-old male with stage IV metastatic small-cell lung cancer undergoing carboplatin, etoposide, and atezolizumab therapy, who developed pericardial tamponade two months into treatment. Initially presenting with hypoxia on day three of his third treatment cycle, he was admitted due to multifocal pneumonia and subsequently diagnosed with pericardial tamponade stemming from a sizable pericardial effusion. Pericardiocentesis was performed, effectively resolving the tamponade. Infectious etiology was ruled out. Notably, there was no associated myocarditis, as evidenced by negative cardiac markers and magnetic resonance imaging (MRI) findings, and cytologic analysis of the pericardial fluid did not reveal malignant cells, indicating an isolated immunologic etiology for the pericardial effusion. Following successful management, including oxygen support and a prednisone taper, chemotherapy without immunotherapy was resumed after a one-week delay. This rare case underscores the significance of promptly utilizing multimodality imaging with timely cardiology intervention, a prompt pericardial fluid analysis in diagnosing cardiac irAEs, and management leading to improved patient outcomes.

Associations Between Patient-Perceived Cancer Curability and Advance Directive Completion.

Background: Despite Advance Care Planning recommendations for patients with cancer, many lack Advance Directives (ADs). AD disparities persist among Black, Indigenous, or People of Color (BIPOC) patients. Based on a hypothesized correlation, we examined the association between patient-perceived cancer incurability and AD completion. Methods: This cross-sectional study obtained self-reported AD completion and incurability perception from routine care surveys. AD completion by incurability perception was estimated using modified Poisson regression. Subgroup analyses examined patients who were BIPOC, White, and had solid organ malignancies. Results: Our sample (N = 1209) was predominantly female (70%), White (73%) with early-stage disease (60%), and solid organ malignancies (82%). AD completion was 42%, and 40% of patients reported their cancer incurable. Patient-perceived incurability was not associated with increased AD completion (likelihood ratio 0.94, 95% confidence interval 0.78-1.13) in overall or subgroup analyses. Conclusion: Patient-perceived cancer incurability was not associated with AD completion, even accounting for race/ethnicity and cancer type.

Associations between geography, decision-making style, and interest in cancer clinical trial participation.

BACKGROUND: Clinical trials offer novel treatments, which are essential to high quality cancer care. Patients living in rural areas are often underrepresented in clinical trials due to several factors. This study evaluated the association between rurality and interest in clinical trial participation, change in interest, and treatment decision-making style preference. METHODS: This cohort study included patients with cancer receiving oncology care at the University of Alabama at Birmingham from 2017 to 2019. Associations between treatment decision-making preference and the interaction between rurality and area deprivation were analyzed using multinomial logistic regression. Initial interest in clinical trial participation and change in interest were analyzed using modified Poisson regressions with robust standard errors. Initial interest model was stratified by Area Deprivation Index (ADI; higher vs. lower disadvantaged). RESULTS: In adjusted models, patients in rural versus urban areas had similar initial interest in clinical trials, both those in higher (40% vs. 50%) and lower disadvantaged settings (54% vs. 62%). Additionally, rural versus urban patients had similar change of clinical trial interest for both those who changed from uninterested-to-interested (31% vs. 26%) and interested-to-uninterested (47% vs. 42%). CONCLUSION: This study compares the interest in clinical trial participation among patients living in rural and urban settings. Lack of interest may be secondary to barriers that patients in rural areas face (e.g., transportation, financial, access). Most rural patients prefer a shared treatment decision-making style, which should be considered when identifying interventions to increase enrollment of underserved rural patients in clinical trials.

The Impact of Depression on Health Care Utilization in Patients with Cancer.

Background: Depression is common in the oncology patient population. Little data exist on the impact of depression on health care utilization. Objectives: We evaluated the prevalence of depression and the relationship between depression and health care utilization in patients with cancer. Design: This cross-sectional study utilized patient-reported outcome data from predominately Medicare beneficiaries with cancer. We examined the emergency department visits and inpatient admissions within 3 months from survey. The relationship between depression and hospital visits was assessed using generalized linear models. Results: Of 1038 patients included in the study, 13% had moderate to severe depression. In adjusted models, patients with moderate or severe depression trended toward increased risk of hospitalizations compared with patients without depression (risk ratio: 1.25, 95% confidence interval: 0.97-1.62). Conclusions: Clinically significant depression is not uncommon in cancer patients. Further research is needed evaluating the relationship between depression, health care utilization, and early psychiatric intervention in oncology.

Linking vitamin B1 with cancer cell metabolism.

The resurgence of interest in cancer metabolism has linked alterations in the regulation and exploitation of metabolic pathways with an anabolic phenotype that increases biomass production for the replication of new daughter cells. To support the increase in the metabolic rate of cancer cells, a coordinated increase in the supply of nutrients, such as glucose and micronutrients functioning as enzyme cofactors is required. The majority of co-enzymes are water-soluble vitamins such as niacin, folic acid, pantothenic acid, pyridoxine, biotin, riboflavin and thiamine (Vitamin B1). Continuous dietary intake of these micronutrients is essential for maintaining normal health. How cancer cells adaptively regulate cellular homeostasis of cofactors and how they can regulate expression and function of metabolic enzymes in cancer is underappreciated. Exploitation of cofactor-dependent metabolic pathways with the advent of anti-folates highlights the potential vulnerabilities and importance of vitamins in cancer biology. Vitamin supplementation products are easily accessible and patients often perceive them as safe and beneficial without full knowledge of their effects. Thus, understanding the significance of enzyme cofactors in cancer cell metabolism will provide for important dietary strategies and new molecular targets to reduce disease progression. Recent studies have demonstrated the significance of thiamine-dependent enzymes in cancer cell metabolism. Therefore, this review discusses the current knowledge in the alterations in thiamine availability, homeostasis, and exploitation of thiamine-dependent pathways by cancer cells.