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

页码：128 / 131

页数：4