PERCUTANEOUS THROMBECTOMY OF THE ACUTELY THROMBOSED DIALYSIS GRAFT - INVITRO EVALUATION OF 4 DEVICES

被引：23

作者：

SCHMITZRODE, T

PFEFFER, JG

BOHNDORF, K

GUNTHER, RW

机构：

[1] Department of Diagnostic Radiology, Klinikum Aachen, University of Technology, Aachen, D-5100

来源：

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY | 1993年 / 16卷 / 02期

关键词：

ASPIRATION THROMBECTOMY; DIALYSIS; SHUNTS; GRAFTS; INTERVENTIONAL PROCEDURE; THROMBOLYSIS;

D O I：

10.1007/BF02602981

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Percutaneous recanalization of completely thrombosed hemodialysis grafts was simulated in a flow model. Thrombus removal was performed by 1) a Trac-Wright catheter; 2) an ultrasound-driven, oscillating probe aspiration thrombectomy (US-OAT) device; 3) an electric motor-driven oscillating probe aspiration thrombectomy (EM-OAT) device; and 4) a rotating spiral aspiration thrombectomy (RAT) device. All devices were able to restore a continuous lumen of the shunt model within 1-5 min, but residual layers of wall-adherent thrombi remained attached, particularly to the inner curvature of the shunt loop. Clot removal rate was 95% for the Trac-Wright catheter, 73% for the US-OAT device, 68% for the EM-OAT device (straight tip catheter), 88% for the EM-OAT device (angulated tip catheter), and 51% for the RAT device. Effluent particle rates for particles >100 mum were 3.6% for the Trac-Wright catheter, 0.6% for US-OAT, and less than 0.1% for the other devices. Compared with the Trac-Wright catheter, the balance of clot-removing efficiency and creation of effluent particles favored the electric oscillating device with the angulated tip catheter, which had a slightly reduced, but still efficient, clot-removing capability and produced almost no effluent particles.

引用

页码：72 / 75

页数：4

共 19 条

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