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Outcomes of the Japanese multicenter Viabahn trial of endovascular stent grafting for superficial femoral artery lesions  Takao Ohki, MD, PhD, Kimihiko.

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Presentation on theme: "Outcomes of the Japanese multicenter Viabahn trial of endovascular stent grafting for superficial femoral artery lesions  Takao Ohki, MD, PhD, Kimihiko."— Presentation transcript:

1 Outcomes of the Japanese multicenter Viabahn trial of endovascular stent grafting for superficial femoral artery lesions  Takao Ohki, MD, PhD, Kimihiko Kichikawa, MD, Hiroyoshi Yokoi, MD, Masaaki Uematsu, MD, PhD, Terutoshi Yamaoka, MD, PhD, Koji Maeda, MD, Yuji Kanaoka, MD, PhD  Journal of Vascular Surgery  Volume 66, Issue 1, Pages e1 (July 2017) DOI: /j.jvs Copyright © 2017 The Authors Terms and Conditions

2 Fig 1 Kaplan-Meier (KM) estimates of primary, primary assisted, and secondary patency in Viabahn stent-grafted lesions at 12 months after intervention. Primary patency-surgical (PP-S), primary patency using the definition typically employed in surgical bypass studies, that is, presence of blood flow through a device that did not require target lesion revascularization (TLR) to maintain or to restore blood flow. Primary patency-interventional (PP-I), primary patency using the definition typically used in interventional studies, that is, peak systolic velocity ratio <2.5 across the treated lesion. CI, Confidence interval. Journal of Vascular Surgery  , e1DOI: ( /j.jvs ) Copyright © 2017 The Authors Terms and Conditions

3 Fig 2 Primary patency subgroup analyses of Viabahn stent-grafted lesions through 12 months after intervention by Kaplan-Meier (KM) analysis. Primary patency was evaluated using both the clinical definition typically employed to track outcomes of surgical bypass (primary patency-surgical [PP-S], left column, that is, hemodynamic blood flow through a device that did not require a target lesion revascularization [TLR] to maintain or to restore blood flow) and the ultrasound-determined definition of patency as peak systolic velocity ratio <2.5 that is commonly reported in endovascular interventional studies (primary patency-interventional [PP-I], right column). Longer lesions were significantly correlated to decreased PP-S (A), and smaller diameter stent grafts were significantly associated with decreased PP-I (B). Primary patency was unaffected by both diabetes comorbidity (C) and age of the subject (D). There was no association between the primary patency rate at postoperative 12 months and lesion calcification status, number of treated tibial runoff vessels, smoking status, or hypertension comorbidity (not shown). CI, Confidence interval. Journal of Vascular Surgery  , e1DOI: ( /j.jvs ) Copyright © 2017 The Authors Terms and Conditions

4 Fig 3 Target lesion revascularization (TLR) avoidance. By Kaplan-Meier (KM) analysis, 93.1% of subjects were free from TLR (fTLR) at the 12-month end point (A). Whereas longer lesions were significantly associated with a reduced fTLR (B), stent graft diameter did not affect the 12-month fTLR rate (C). CI, Confidence interval. Journal of Vascular Surgery  , e1DOI: ( /j.jvs ) Copyright © 2017 The Authors Terms and Conditions

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