4.5 Article

Cardiac risk stratification of breast cancer patients in a cardio-oncology clinic

Journal

BREAST CANCER RESEARCH AND TREATMENT
Volume 190, Issue 1, Pages 133-142

Publisher

SPRINGER
DOI: 10.1007/s10549-021-06353-x

Keywords

Cardio-oncology; Risk stratification; Cardiovascular outcomes; Chemotherapy

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The study aimed to optimize cardiac health of cancer patients in a cardio-oncology clinic. The research focused on breast cancer patients and found the importance of optimizing cardiovascular health in this patient population.
Purpose The field of cardio-oncology aims to optimize the cardiac health of cancer patients. The goals of this study are to (1) describe the demographics of a cardio-oncology clinic and (2) apply the American Society of Clinical Oncology (ASCO) cardiac risk stratification guidelines among breast cancer patients to assess the development of cardiovascular events, primarily heart failure (HF). Methods We performed a retrospective chart review on 203 consecutive cardio-oncology patients who were seen between January 2019 and March 2020. Mean follow-up for the cohort was 29.2 +/- 3.1 months (range 0-113). We applied the ASCO guidelines to the breast cancer subgroup. Results The plurality of patients 82/203 (40%) referred to clinic had breast cancer. The most common reason for referral was asymptomatic left ventricular (LV) dysfunction or HF (40%). Only 36/203 (18%) of patients were referred for a pre-chemotherapy evaluation. In breast cancer patients, there was a trend toward significance in up-titrating or initiating beta-blockers in the high vs. low risk ASCO groups [46/69 (67%) vs. 5/13 (38%), p = 0.054]. Approximately 13/82 (16%) of breast cancer patients required alterations to their anti-cancer therapy. HF events occurred in 1/36 (3%) of cancer treatment naive patients and 14/167 (8%) of those with prior therapy, specifically 9% of the breast cancer subset. Conclusion Our study provides insight into referral practices, interventions, and outcomes at a cardio-oncology clinic. Furthermore, breast cancer patients continue to have high rates of HF. These findings suggest a need to shift referral practices upstream for a pre-chemotherapy evaluation to optimize cardiovascular health.

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