Publications by authors named "Juan C Plana"

Background: The burden and functional significance of autonomic dysfunction among survivors of childhood cancer is unknown.

Objectives: We evaluated the prevalence, risk factors, and functional relevance of autonomic dysfunction in survivors.

Methods: We conducted a cross-sectional prospective evaluation of 1,041 adult survivors of childhood cancer treated with anthracyclines (31.

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Article Synopsis
  • * New techniques in cardiovascular imaging are crucial for detecting and managing heart risks in cancer patients, but there's still disagreement on the best approaches to using these imaging methods in different treatment settings.
  • * This scientific statement aims to outline the current evidence for cardiovascular imaging in cancer care and to suggest new methods for its application, ultimately providing clearer guidance for integrating imaging into clinical practice.
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Septic shock is a life-threatening host response to infection and a significant contributor to cost burden in the United States. Furthermore, sepsis-related inflammation has been linked to myocardial infarction (MI). We sought to examine the association of type 1 and type 2 MI with outcomes in hospitalizations admitted with septic shock.

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Background: Anthracycline therapy may lead to changes in cardiac structure and function not detectable by solely evaluating left ventricular ejection fraction (LVEF).

Objectives: We hypothesized that cardiovascular magnetic resonance (CMR) would identify structural and functional myocardial abnormalities in anthracycline-treated cancer survivors with normal LVEF, compared to a matched control population.

Methods: Forty-five cancer survivors (56 ± 16 yrs.

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Background: Limited data exist regarding left ventricular remodeling patterns observed in adult survivors of childhood cancer after therapy.

Methods: Among 1190 adult survivors diagnosed with childhood cancer (median age at diagnosis, 9 years [interquartile range (IQR), 3.8-14.

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Background: Survivors of childhood cancer exposed to cardiotoxic therapies are at significant cardiovascular risk. The utility of cardiac biomarkers for identifying the risk of future cardiomyopathy and mortality is unknown.

Methods: N-terminal pro-B-type natriuretic peptide (NT-proBNP) and cardiac troponin T (cTnT) were assessed in 1213 adults 10 or more years from a childhood cancer diagnosis; 786 were exposed to anthracycline chemotherapy and/or chest-directed radiation therapy (RT).

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Cancer patients with acute coronary syndrome (ACS) have significantly greater mortality compared with non-cancer patients. This risk is partly directly attributable to the malignancy; however these patients are frequently undertreated with respect to guideline recommended treatments for ACS due to higher bleeding risks from anemia and thrombocytopenia. Due to exclusion from large clinical trials, there is a paucity of data regarding how to best treat these complex and high-risk patients.

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Article Synopsis
  • Survivors of childhood cancer, especially those treated with cardiotoxic therapies like chest-directed radiation and anthracycline chemotherapy, are at heightened risk for cardiovascular diseases.
  • A study analyzed family histories from 1,260 childhood cancer survivors and found significant links between first-degree family history of cardiovascular issues and increased risk of heart failure and hypertension.
  • These findings emphasize the need for careful cardiovascular monitoring in childhood cancer survivors, particularly those with a family history of heart-related conditions.
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Importance: Exercise intolerance is associated with increased risk for morbidity and mortality in childhood cancer survivors. However, an association between exercise intolerance and psychosocial outcomes has not been fully explored.

Objective: To examine the associations between exercise intolerance and emotional distress, attainment of social roles, and health-related quality of life in childhood cancer survivors.

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This paper aims to empower and inform cardio-oncologists by providing a practical guide to the clinical application of cardiac magnetic resonance (CMR) in the rapidly evolving field of cardio-oncology. Specifically, we describe how CMR can be used to assess the cardiovascular effects of cancer therapy. The CMR literature, relevant societal guidelines, indication-specific imaging protocols, and methods to overcome some of the challenges encountered in performing and accessing CMR are reviewed.

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  • The study investigates exercise intolerance in long-term survivors of childhood cancer, particularly those who received cardiotoxic treatments compared to those who didn’t and control subjects without cancer history.
  • Results show that a significant percentage of survivors experience exercise intolerance, with rates higher in those exposed to anthracyclines or radiation than in controls.
  • Exercise intolerance is linked to decreased physical capability and a greater risk of mortality, suggesting the need for follow-up care focused on improving exercise capacity in this population.
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Anthracyclines and HER2-targeted antibodies are very effective for the treatment of breast cancer, but their use is limited by cardiotoxicity. In this nested case-control study, we assessed the role of intermediary metabolism in 38 women with breast cancer treated with anthracyclines and trastuzumab. Using targeted mass spectrometry to measure 71 metabolites in the plasma, we identified changes in citric acid and aconitic acid that differentiated patients who developed cardiotoxicity from those who did not.

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Background: Anthracycline cardiomyopathy contributes to the morbidity and mortality of cancer survivors but long-term data are lacking. This study sought to describe the phenotype of long-term anthracycline cardiomyopathy, the prevalence of myocardial fibrosis and its association with cardiac remodeling, systolic function and clinical outcomes.

Methods And Results: We undertook contrast-enhanced CMR in 81 cancer survivors at median 5 years after anthracycline (mean dose 279 SD 89 mg/m).

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Cancer therapy can be associated with both cardiac and vascular toxicity. Advanced multi-modality imaging can be used to stratify patient risk, identify cardiovascular injury during and after therapy, and forecast recovery. Echocardiography continues to be the mainstay in the evaluation of cardiac toxicity.

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Early recognition of cancer therapy-related cardiac dysfunction (CTRCD) provides an opportunity to mitigate cardiac injury and risk of developing late cardiac events. Echocardiography serves as the cornerstone in the detection and surveillance of CTRCD in patients during and after cancer therapy. Guidelines from professional societies and regulatory agencies have been published on approaches to surveillance, diagnosis, and treatment of CTRCD, although adoption as standard of care remains limited given the lack of evidence on the prognostic value of asymptomatic left ventricular (LV) dysfunction in the oncology population.

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Cardiovascular toxicity in the form of cardiac dysfunction continues to be an obstacle for patients with cancer. Survival and quality of life of cancer survivors are frequently affected by increased incidence of cardiovascular disease. The involvement of the cardiovascular system by primary or secondary malignancies, as well as its dysfunction secondary to the administration of antineoplastics, has led to the development of a new discipline called Cardio-Oncology, an exciting cardiology subspecialty with more questions than answers and as a result an enormous opportunity for research in the field.

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Background: Anthracycline chemotherapy is associated with an increased risk of developing heart failure (HF). The current standard for detecting HF or cardiotoxicity during chemotherapy involves episodic cardiac imaging typically at prescribed intervals and there are limited studies examining techniques beyond measuring left ventricular (LV) function. This study explores whether cardiac biomarkers troponin I (TnI) and B-type natriuretic peptide (BNP) could be part of a screening strategy for early detection of the development of cardiotoxicity in patients undergoing anthracycline chemotherapy.

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Background: Cancer chemotherapy increases the risk of heart failure. This cost-effectiveness model compared strain-guided cardioprotection with other protective strategies using a health care payer perspective and five-year time horizon.

Methods: Three cardioprotection strategies were assessed: 1) usual care (EF-guided cardioprotection, EFGCP) with cardioprotection initiated on diagnosis of LVEF-defined cardiotoxicity (EF-CTX), 2) universal cardioprotection (UCP) for all such patients, and 3) strain-guided cardioprotection (SGCP - treatment of patients with subclinical cardiotoxicity [S-CTX]).

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Background: Studies of cardiac disease among adult survivors of childhood cancer have generally relied on self-reported or registry-based data.

Objective: To systematically assess cardiac outcomes among survivors of childhood cancer.

Design: Cross-sectional study.

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Background: Biomarkers may play an important role in identifying patients at risk for cancer therapy cardiotoxicity. Our objectives were to define the patterns of change in biomarkers with cancer therapy and their associations with cardiotoxicity.

Methods: In a multicenter cohort of 78 breast cancer patients undergoing doxorubicin and trastuzumab therapy, 8 biomarkers were evaluated at baseline and every 3 months over a maximum follow-up of 15 months.

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Anthracyclines are one of the most commonly used antineoplastic agent classes, and a core part of the treatment in breast cancers, hematological malignancies, and sarcomas. Their benefit is decreased by their well-recognized cardiotoxicity. The purpose of this review is to outline the presentation, mechanisms, diagnosis, and treatment of anthracyclines-induced cardiotoxicity.

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