Echocardiography and mechanical ventricular assistance. A case of dynamic inflow cannula obstruction.
DOI:
https://doi.org/10.37615/retic.n3a10Keywords:
ventricular assist device, dinamic obstruction, transesophageal echocardiography, mitral regurgitation.Abstract
Echocardiography has a peculiar role during the different phases of care of patients with left ventricular assist devices. When a segment of the left ventricular myocardium partially occludes the inflow cannula, the suction event occurs and the pump inflow is reduced. Speed-change testing could define the optimal setting of that particular patient.
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Uriel N, Morrison KA, Garan AR, et al. Development of a novel echocardiography ramp test for speed optimization and diagnosis of device thrombosis in continuous flow left ventricular assist devices: The Columbia Ramp Study. Journal of the American College of Cardiology 2012; 60: 1.764-1.775. DOI: https://doi.org/10.1016/j.jacc.2012.07.052
Ammar KA, Umland MM, et al. The ABCs of left ventricular assist device echocardiography: a systematic approach. Eur Heart J Cardiovasc Imaging 2012; 13: 885-899. DOI: https://doi.org/10.1093/ehjci/jes090
Najib MQ, Ganji JL, et al. Transoesophageal echocardiographic Doppler colour flow patterns of a normally functioning third-generation centrifugal left ventricular assist device. Eur Heart J Cardiovasc Imaging 2012; 13: 362- 363. DOI: https://doi.org/10.1093/ejechocard/jer265
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Copyright (c) 2016 Paola Sormani, Benedetta De Chiara , Antonella Moreo
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