Research Article

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

Table 5

Subset analysis of event rates by calcified lesions in the Emboshield NAV6 group.

% (n/N)Calcified NAV6 (N = 70)Noncalcified NAV6 (N = 90)Calcified SpiderFX (N = 131)Noncalcified SpiderFX (N = 216)

Freedom from MAE88.6% (62/70)94.6% (87/91)0.16795.4% (125/131)91.7% (198/216)0.264
Death0.0% (0/70)1.1% (1/91)0.3790.0% (0/131)0.5% (1/216)0.434
MI (modified ARC)0.0% (0/70)2.2% (2/91)0.3791.5% (2/131)3.7% (8/216)0.237
TVR0.0% (0/70)0.0% (0/91)N/A0.0% (0/131)0.9% (2/216)0.268
Thrombosis0.0% (0/70)1.1% (1/91)0.3791.5% (2/131)0.9% (2/216)0.615
Dissection (grade C or greater)11.4% (8/70)0.0% (0/91)0.0010.7% (1/131)1.4% (3/216)0.033
Distal embolization0.0% (0/70)1.1% (1/91)0.3790.7% (1/131)0.9% (2/216)0.871
Perforation at the level of the filter0.0% (0/70)0.0% (0/91)N/A0.0% (0/131)0.0% (0/216)N/A
Unplanned amputation0.0% (0/70)0.0% (0/91)N/A0.0% (0/131)0.0% (0/216)N/A

aBy the Newcombe score method. ARC, academic research consortium; MAE, major adverse event; MI, myocardial infarction; TVR, target vessel revascularization.