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Awesome Reference - Diagn Interv Radiol DOI...

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© Turkish Society of Radiology 2010 M echanical thrombectomy and percutaneous catheter aspira- tion thrombectomy have become accepted alternative meth- ods for the recanalization of acute and subacute vessel occlu- sions because of their distinct advantages as compared to conventional thrombolysis. Amongst other procedures, mechanical thrombectomy and percutaneous catheter aspiration thrombectomy are faster, safer, more efficient and more cost-effective. Therefore, the use of these pro- cedures avoids expensive intensive therapy as well as complications. In the last decade, various mechanical thrombectomy devices have been introduced and established for clinical applications, and their use is relatively wide-spread. There are two categories of devices for me- chanical thrombectomy: rotational and rheolytic recirculation devices (1,2). The ThromCat ® XT catheter (Spectranetics International; Leusden, The Netherlands) is a new rotational thrombectomy device primarily developed for coronary intervention, but with CE mark approval for the mechanical removal of thrombi from native coronary arteries and in- fra-inguinal arteries. It has a construction similar to that of other well- known rotational catheters, but has a somewhat different design, which modifies its field of application and turns it into a suitable revasculariza- tion device for peripheral occlusions with special indications. The pur- pose of our pilot trial was to gather initial procedural as well as clinical experience and to identify possible indications by introducing it into peripheral intervention. Materials and methods System design of the ThromCat XT device and its application The ThromCat XT is a rapid exchange thrombectomy device that was designed as a flexible and kink-resistant catheter with a working length of 150 cm. The catheter operates on a 0.014-inch guide wire via a 6 F sheath or a 7 F guiding catheter. The ThromCat XT consists of a nylon blend containing a stainless steel helix and a so-called stainless steel catheter neck encasing the distal end of the helix, thus avoiding any direct contact with the vessel wall. The details of the overall system set-up are shown in Fig. 1. Because of the improved flexibility of the helix, the new system can be applied using both the prograde and cross-over techniques. The helix itself is connected to a control unit containing a motor that powers the extrac- tion spiral. A 500-mL extraction bag and a power cord are connected to the control unit. The distal catheter end is covered by an asymmetric, slightly pointed and atraumatic tip made of rubber to prevent vessel injury. The operating principles of the ThromCat XT device are based on mechanical clot maceration and immediate removal of debris from the vessel lumen. INTERVENTIONAL RADIOLOGY
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Awesome Reference - Diagn Interv Radiol DOI...

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