ABSTRACT

BACKGROUND: Screening guidelines for childhood cancer survivors treated with radiation currently rely on broad anatomic irradiated regions (IR) to determine risk for late effects. However, contemporary radiotherapy techniques use volumetric dosimetry (VD) to define organ-specific exposure, which supports more specific screening recommendations that could be less costly.

PATIENTS AND METHODS: This was a cross-sectional study of 132 patients treated with irradiation at Children's Hospital Los Angeles from 2000 to 2016. For 5 key organs (cochlea, breast, heart, lung, and colon), radiation exposure was determined retrospectively using both IR and VD methods. Under each method, Children's Oncology Group Long-Term Follow-Up Guidelines were used to identify organs flagged for screening and recommended screening tests. Projected screening costs incurred under each method were computed through age 65 using insurance claims data.

RESULTS: Median age at the end of treatment was 10.6 years (range, 1.4-20.4). Brain tumor was the most common diagnosis (45%) and head/brain the most common irradiated region (61%). For all 5 organs, use of VD rather than IR resulted in fewer recommended screening tests. This led to average cumulative estimated savings of $3769 (P = .099), with significant savings in patients with CNS tumors (P = .012). Among patients with savings, average savings were $9620 per patient (P = .016) and significantly more likely for females than males (P = .027).

CONCLUSION: Use of VD to enhance precision of guideline-based screening for radiation-related late effects permits fewer recommended screening tests and generates cost-savings.

PMID:37284853 | DOI:10.1093/oncolo/oyad136

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PubMed articles on: Cardio-Oncology

CAR-T Therapy in Lymphoma Patients With Coexisting Cardiomyopathy or Cardiac Lymphomatous Involvement

JACC Case Rep. 2023 Apr 21;15:101840. doi: 10.1016/j.jaccas.2023.101840. eCollection 2023 Jun 7.

ABSTRACT

Chimeric antigen receptor T-cell (CAR-T) therapy has revolutionized the management of aggressive hematologic malignancies. However, its role in patients with lymphoma and cardiac metastasis or cardiomyopathy remains undefined due to potentially life-threatening complications such as ventricular rupture, cardiac tamponade, and circulatory failure. We present a case series of patients with lymphoma and cardiomyopathy or cardiac metastasis managed with chimeric antigen receptor T-cell therapy. (Level of Difficulty: Advanced.).

PMID:37283829 | PMC:PMC10240233 | DOI:10.1016/j.jaccas.2023.101840

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PubMed articles on: Cardio-Oncology

Informatics tools to implement late cardiovascular risk prediction modeling for population management of high-risk childhood cancer survivors

Pediatr Blood Cancer. 2023 Jun 7:e30474. doi: 10.1002/pbc.30474. Online ahead of print.

ABSTRACT

BACKGROUND: Clinical informatics tools to integrate data from multiple sources have the potential to catalyze population health management of childhood cancer survivors at high risk for late heart failure through the implementation of previously validated risk calculators.

METHODS: The Oklahoma cohort (n = 365) harnessed data elements from Passport for Care (PFC), and the Duke cohort (n = 274) employed informatics methods to automatically extract chemotherapy exposures from electronic health record (EHR) data for survivors 18 years old and younger at diagnosis. The Childhood Cancer Survivor Study (CCSS) late cardiovascular risk calculator was implemented, and risk groups for heart failure were compared to the Children's Oncology Group (COG) and the International Guidelines Harmonization Group (IGHG) recommendations. Analysis within the Oklahoma cohort assessed disparities in guideline-adherent care.

RESULTS: The Oklahoma and Duke cohorts both observed good overall concordance between the CCSS and COG risk groups for late heart failure, with weighted kappa statistics of .70 and .75, respectively. Low-risk groups showed excellent concordance (kappa > .9). Moderate and high-risk groups showed moderate concordance (kappa .44-.60). In the Oklahoma cohort, adolescents at diagnosis were significantly less likely to receive guideline-adherent echocardiogram surveillance compared with survivors younger than 13 years old at diagnosis (odds ratio [OD] 0.22; 95% confidence interval [CI]: 0.10-0.49).

CONCLUSIONS: Clinical informatics tools represent a feasible approach to leverage discrete treatment-related data elements from PFC or the EHR to successfully implement previously validated late cardiovascular risk prediction models on a population health level. Concordance of CCSS, COG, and IGHG risk groups using real-world data informs current guidelines and identifies inequities in guideline-adherent care.

PMID:37283294 | DOI:10.1002/pbc.30474

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PubMed articles on: Cardio-Oncology

Myocardial bridge in a patient with castration-resistant metastatic prostate cancer treated with enzalutamide

J Oncol Pharm Pract. 2023 Jun 6:10781552231180599. doi: 10.1177/10781552231180599. Online ahead of print.