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

被引：3
|
作者：
Iacovoni, Attilio [1 ]
Vittori, Claudia [1 ]
Fontana, Alessandra [1 ]
Carobbio, Alessandra [2 ]
Fino, Carlo [1 ]
D'Elia, Emilia [1 ]
Terzi, Amedeo [1 ]
Senni, Michele [1 ]
机构：
[1] Reg Healthcare & Social Serv ASST, Cardiovasc Dept, Papa Giovanni Hosp 23, Bergamo, Italy
[2] Reg Healthcare & Social Serv ASST, FROM Res Fdn, Papa Giovanni Hosp 23, Bergamo, Italy
来源：
INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS | 2017年 / 40卷 / 03期
关键词：
Advanced heart failure; Left ventricular assist device; Pump thrombosis; SPEED OPTIMIZATION; THROMBOSIS; SYSTEM;
D O I：
10.5301/ijao.5000573
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
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.
引用
收藏
页码：128 / 131
页数：4
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