Citation: Journal of Endovascular Therapy. 23(6):839-846, 2016 Dec.Journal: Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists.Published: 2016ISSN: 1526-6028.Full author list: Walker CM; Mustapha J; Zeller T; Schmidt A; Montero-Baker M; Nanjundappa A; Manzi M; Palena LM; Bernardo N; Khatib Y; Beasley R; Leon L; Saab FA; Shields AR; Adams GL.UI/PMID: 27558463.Subject(s): Adult | Aged | Aged, 80 and over | *Arteries/su [Surgery] | Chronic Disease | Female | Humans | *Ischemia/su [Surgery] | Leg/bs [Blood Supply] | *Limb Salvage | Male | Middle Aged | Prospective Studies | Retrospective Studies | Treatment OutcomeInstitution(s): MedStar Heart & Vascular InstituteActivity type: Journal Article.Medline article type(s): Journal ArticleDigital Object Identifier: https://dx.doi.org/10.1177/1526602816664768 (Click here)Abbreviated citation: J Endovasc Ther. 23(6):839-846, 2016 Dec.Abstract: PURPOSE: To report a prospective, multicenter, observational study (ClinicalTrials.gov identifier NCT01609621) of the safety and effectiveness of tibiopedal access and retrograde crossing in the treatment of infrainguinal chronic total occlusions (CTOs).Abstract: METHODS: Twelve sites around the world prospectively enrolled 197 patients (mean age 71+/-11 years, range 41-93; 129 men) from May 2012 to July 2013 who met the inclusion criterion of at least one CTO for which a retrograde crossing procedure was planned or became necessary. The population consisted of 64 (32.5%) claudicants (Rutherford categories 2/3) and 133 (67.5%) patients with critical limb ischemia (Rutherford category >4). A primary antegrade attempt to cross had been made prior to the tibiopedal attempt in 132 (67.0%) cases. Techniques used for access, retrograde lesion crossing, and treatment were at the operator's discretion. Follow-up data were obtained 30 days after the procedure.Abstract: RESULTS: Technical tibiopedal access success was achieved in 184 (93.4%) of 197 patients and technical occlusion crossing success in 157 (85.3%) of the 184 successful tibial accesses. Failed access attempts were more common in women (9 of 13 failures). The rate of successful crossing was roughly equivalent between sexes [84.7% (50/59) women compared to 85.6% (107/125) men]. Technical success did not differ significantly based on a prior failed antegrade attempt: the access success rate was 92.4% (122/132) after a failed antegrade access vs 95.4% (62/65) in those with a primary tibiopedal attempt (p=0.55). Similarly, crossing success was achieved in 82.8% (101/122) after a failed antegrade access vs 90.3% (56/62) for patients with no prior antegrade attempt (p=0.19). Minor complications related to the access site occurred in 11 (5.6%) cases; no patient had access vessel thrombosis, compartment syndrome, or surgical revascularization.Abstract: CONCLUSION: Tibiopedal access appears to be safe and can be used effectively for the crossing of infrainguinal lesions in patients with severe lower limb ischemia.Abstract: Copyright � The Author(s) 2016.