title: Efficacy and learning curve of a hand-held echocardiography device in an oncology outpatient clinic: Expanding the use of echoscopic heart examination beyond cardiology.
abstract: Certain chemotherapy drugs for breast cancer may induce cardiotoxicity and these patients should be echocardiographically monitored. The performance of a focused echocardiographic evaluation (echoscopy) at the patient's location by a non-cardiologist appears to be feasible. The aim of the present study was to assess the accuracy of echoscopy performed by medical oncologists in an outpatient clinic using hand-held echocardiography devices. The study cohort comprised consecutive unselected patients who attended an oncology outpatient clinic. Two medical oncologists attended a one-week training period, which included theoretical and practical teaching by an expert cardiologist. Every subject underwent two echo examinations. The first examination was performed by an oncologist using a hand-held echo device and the second was performed by a cardiologist using a 'premium' device. Out of the 101 enrolled patients, 32 were men (31.7%) and the mean age was 56.03±16.88 years. There was a good global agreement [intra-class correlation coefficient (ICC): 0.65 for left ventricular ejection fraction (LVEF)]. When the results were analyzed depending on the period of time when the echo studies were performed, a clear and short learning curve was observed: LVEF started at ICC=0.58 and increased to 0.66 and 0.77 in the second and third period, respectively. There were extremely few clinically significant differences and a learning curve was also evident. In conclusion, cardiac echoscopy performed by an oncologist with a hand-held device may lead to a similar clinical management as a study performed by an expert cardiologist with a 'premium' system in patients under chemotherapy following a short training period.
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Leopoldo Pérez
authors.initials: LP
authors.lastname: PéREZ DE Isla
authors.affiliation: Department of Oncology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Moreno
authors.affiliation: Department of Oncology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Jose Angel Garcia
authors.initials: JA
authors.lastname: Garcia Saez
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Matias
authors.initials: M
authors.lastname: Clavero
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Nuno
authors.initials: N
authors.lastname: Moreno
authors.affiliation: Department of Oncology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Carlos Aguado
authors.initials: CA
authors.lastname: Aguado DE LA Rosa
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Jose Alberto
authors.initials: JA
authors.lastname: DE Agustin
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Jose Juan Gomez
authors.initials: JJ
authors.lastname: Gomez DE Diego
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Cobos
authors.affiliation: Department of Cardiology, Hospital del Tajo, 28300 Madrid, Spain.
authors.forename: Adriana
authors.initials: A
authors.lastname: Saltijeral
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Macaya
authors.affiliation: Department of Cardiology, Clinical Hospital San Carlos, Health Research Institute, San Carlos, 28040 Madrid, Spain.
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Garcia-Fernandez
keywords: cardiotoxicity; chemotherapy; hand-held echocardiography; oncology