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Background Although Brain Natriuretic Peptide (BNP) provides strong prognostic information of an unfavorable outcome in patients with acute heart failure (AHF), there is little information of its relevance as a biomarker for outcomes in COVID-19 and its complications Purpose To evaluate the association of increased BNP levels with complications and in-hospital mortality in a cohort of hospitalized COVID-19 patients. Methods The study included COVID-19 patients with data on BNP levels included in the ISACS COVID-19 registry. The population was categorized according to the presence of peak BNP levels ≥100 pg/mL during hospitalization. Primary outcomes included in-hospital mortality, AHF or acute respiratory failure (ARF, defined as PiO2/FiO2 Results Of the 1152 patients included in the study, 615 (53.4%) had elevated BNP levels. These subjects were older (69.9±13.8 vs 59.1±16.8, p-value Conclusions In COVID-19, blood BNP level not only appears to be predictor of in-hospital mortality and AHF but was also independently associated with an increased risk of ARF. This finding supports the routine use of BNP in all patients admitted to hospital for COVID-19, regardless of a prior history of CVD. Funding Acknowledgement Type of funding sources: None.

Background Patients with cancer represent a uniquely vulnerable population not only with higher susceptibility to COVID-19 but also at increased risk for death. However, detailed information on causes of death and the contribution of pre-existing health conditions to death yet is missing. Purpose This study focuses on the implications of COVID-19 in the cardiovascular health of patients with cancer by assessing the relation between cancer and de novo acute heart failure (AHF) with in-hospital mortality. Methods The initial population consisted of 3968 patients included in the ISACS COVID-19 registry between March 2020 and February 2022. Of these, 546 patients with chronic HF were excluded, leaving a final population of 3422. Patients were divided in two groups according to the presence or absence of a cancer diagnosis at the time of hospitalization for COVID-19. Primary outcomes were incidence of in-hospital mortality or AHF during hospitalization. Association between cancer and outcomes was estimated using multivariable logistic regression analyses. Subsidiary analysis was conducted to evaluate differences between patients with prior vs active cancer. Results Of the 3422 patients included in the study, 468 patients had cancer (8.2% active, 5.5% past cancer). Cancer patients were older (68.9±13.4 vs 63.3±15.6, p-value Conclusions The incidence of AHF in cancer patients with COVID-19 is high. Patients with active cancer are also at high risk for mortality. This has implications for cardiac monitoring and chemotherapy administration during COVID-19. Funding Acknowledgement Type of funding sources: None.