Table 1.

Registries of patients treated with contremporary directional atherectomy

	TALON	McKinsey et al	Zeller et al
Study type	Observational, nonrandomized, multicenter registry	Prospective study	Prospective, nonrandomized, single-center study
Patients/Lesions	728/1,517	275/579	84/131
Lesion location	SFA/below-the-knee	Infrainguinal	SFA/popliteal
Average lesion length	8.4 cm	SFA, 9.16 cm; popliteal, 3.77 cm; tibial, 4.64 cm	9–10.6 cm
Lesion characteristics	De novo	De novo	Group 1, 34%;a group 2, 33%;b group 3, 33%c
Stand-alone treatment	----	64.8%	----
Adjunctive balloon angioplasty	21.7%	24.3%	59%
Adjunctive stenting	6.3%	7.5%	6%
Primary patency (by duplex) at 12 months	----	62.2%	Group 1, 84%;a group 2, 54%;b group 3, 54%c
18-month primary patency	----	52.7%	Group 1, 73%;a group 2, 42%;b group 3, 49%c
TLR at 12 months	80%	----	Group 1, 16%;a group 2, 44%;b group 3, 47%c
TLR at 18 months	----	----	Group 1, 22%;a group 2, 56%;b group 3, 49%c
Claudication	----	36.7%	----
CLI	----	63.3%	----
Device-related SAEs	5.3%	4.1%	3.8%

aGroup 1 was de novo lesions.

bGroup 2 was native vessel restenosis.

cGroup 3 was in-stent restenosis.