Research Article

Comparison and Analysis between the NAV6 Embolic Protection Filter and SpiderFX EPD Filter in Superficial Femoral Artery Lesions

Table 6

Subset analysis of event rates by chronic total occlusions in the Emboshield NAV6 group.

% (n/N)CTO NAV6 (N = 46)Non-CTO NAV6 (N = 115) valueCTO SpiderFX (N = 95)Non-CTO SpiderFX (N = 251) value

Freedom from MAE84.8% (39/46)94.8% (109/115)0.07488.4% (84/95)92.4% (232/251)0.334
Death0.0% (0/46)0.9% (1/115)0.5260.0% (0/95)0.4% (1/251)0.538
MI (modified ARC)2.2% (1/46)0.9% (1/115)0.1135.3% (5/95)2.0% (5/251)0.105
TVR0.0% (0/46)0.0% (0/115)0.0% (0/95)0.8% (2/251)0.383
Thrombosis0.0% (0/46)0.9% (1/115)0.5260.0% (0/95)1.6% (4/251)0.216
Dissection (grade C or greater)10.9% (5/46)2.6% (3/115)0.0305.3% (5/95)2.0% (5/251)0.105
Distal embolization2.2% (1/46)0.0% (0/115)0.1131.1% (1/95)0.8% (2/251)0.819
Perforation at the level of the filter0.0% (0/46)0.0% (0/115)N/A0.0% (0/95)0.0% (0/251)N/A
Unplanned amputation0.0% (0/46)0.0% (0/115)N/A0.0% (0/95)0.0% (0/251)N/A

aBy the Newcombe score method. ARC, Academic Research Consortium; CTO, chronic total occlusion; MAE, major adverse event; MI, myocardial infarction; TVR, target vessel revascularization.