This study sought to develop a novel echocardiogram outflow ramp test to detect device malfunctions in centrifugal-flow left ventricular assist devices (LVADs). This new ramp pump test is based on the direct analyses of systolic and diastolic ratio (S/D) Doppler velocity in the outflow cannula in the HeartWare LVAD during progressive increases in speed. The results showed that in patients with normal pump function, the Doppler velocity S/D ratio gradually decreased during LVAD speed increases. This test is easily performed and seems promising to detect normal pump function in patients assisted by a centrifugal flow LVAD.

Iacovoni, A., Vittori, C., Fontana, A., Carobbio, A., Fino, C., D'Elia, E., et al. (2017). Echocardiographic outflow pump ramp test in centrifugal-flow left ventricular assist device. INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS, 40(3), 128-131 [10.5301/ijao.5000573].

Echocardiographic outflow pump ramp test in centrifugal-flow left ventricular assist device

Senni M
2017

Abstract

This study sought to develop a novel echocardiogram outflow ramp test to detect device malfunctions in centrifugal-flow left ventricular assist devices (LVADs). This new ramp pump test is based on the direct analyses of systolic and diastolic ratio (S/D) Doppler velocity in the outflow cannula in the HeartWare LVAD during progressive increases in speed. The results showed that in patients with normal pump function, the Doppler velocity S/D ratio gradually decreased during LVAD speed increases. This test is easily performed and seems promising to detect normal pump function in patients assisted by a centrifugal flow LVAD.
Articolo in rivista - Articolo scientifico
Advanced heart failure; Left ventricular assist device; Pump thrombosis;
English
128
131
4
Iacovoni, A., Vittori, C., Fontana, A., Carobbio, A., Fino, C., D'Elia, E., et al. (2017). Echocardiographic outflow pump ramp test in centrifugal-flow left ventricular assist device. INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS, 40(3), 128-131 [10.5301/ijao.5000573].
Iacovoni, A; Vittori, C; Fontana, A; Carobbio, A; Fino, C; D'Elia, E; Terzi, A; Senni, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/372419
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