Right ventricular involvement in cancer therapy –related cardiotoxicity: the emerging role of strain echocardiography

AbstractThe involvement of the right ventricle (RV) in various cardiovascular pathologies is usually explored and demonstrated after thorough research of the left ventricle (LV). This is also true in cardio-oncology, where multimodality imaging with cardiac magnetic resonance and nuclear imaging is essential, but echocardiography plays pivotal role in everyday clinical practice. Chemotherapy and radiotherapy effect on RV has been studied mainly in breast cancer patients and survivors from childhood cancer. Right ventricular geometry and shape limit the ability of classical echocardiographic indices like RV ejection fraction (RVEF), RV fractional area change (FAC), and tricuspid annular plane systolic excursion (TAPSE) to identify reliably subtle changes in RV systolic function in cancer patients. The assessment of diastolic function of the RV in various timepoints during or after chemotherapy leads to conflicting results too. However, longitudinal strain of the RV (RV LS) seems to detect myocardial injury with consistent results. Remarkably, cardiotoxicity of the RV is identified by RV LS almost simultaneously with LV cardiotoxicity and with similar cutoff percent change suggesting the uniform effect of cancer and its treatments on myocardium. The prognostic value of cardiotoxic effects on the RV needs to be investigated by large prospective studies.
Source: Heart Failure Reviews - Category: Cardiology Source Type: research

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