RotarexReal-World Registry of the Rotarex(TM) Rotational Excisional Atherectomy System (XTRACT Registry)

Inclusion Criteria:

1. Subject or legally authorized representative provides written informed consent using an Informed Consent Form (ICF) that is reviewed and approved by the IRB for the site.
2. Subject is ≥22 years old at the time of signing the informed consent.
3. Subject must have a lesion(s) in their infra-inguinal peripheral arteries that can be treated with the RotarexTM Rotational Excisional Atherectomy System according to Instructions For Use (IFU).
4. Rutherford 2-5 for chronic limb ischemia and Rutherford I to IIb for acute limb ischemia.
5. Target lesion can be crossed intra-luminally by guidewire.
6. At least one patent native outflow artery to the foot, free from significant stenosis(≥50% stenosis as confirmed by angiography) (ChLI Cohort only, not applicable to ALI Cohort).

Exclusion Criteria:

1. Subject is unable or unwilling to comply with follow-up procedures and visits.
2. Subject has a target lesion in a vessel with less than 3 mm in diameter.
3. Subject is participating in another device or drug clinical trial that interferes with this protocol and confounds results.
4. Treatment plan includes use of a thrombectomy and/or atherectomy device other than RotarexTM Rotational Excisional Atherectomy System.
5. Life expectancy is below 1 year.
6. Pregnant, planning to become pregnant during the course of the study or nursing a child.