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The efficacy and durability of the Venous Window Needle Guide implanted on uncannulatable arteriovenous fistulas  Spencer Galt, MD, Mark Crawford, BA,

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Presentation on theme: "The efficacy and durability of the Venous Window Needle Guide implanted on uncannulatable arteriovenous fistulas  Spencer Galt, MD, Mark Crawford, BA,"— Presentation transcript:

1 The efficacy and durability of the Venous Window Needle Guide implanted on uncannulatable arteriovenous fistulas  Spencer Galt, MD, Mark Crawford, BA, John Blebea, MD, Eric Ladenheim, MD, Barry Browne, MD  Journal of Vascular Surgery  Volume 64, Issue 3, Pages (September 2016) DOI: /j.jvs Copyright © Terms and Conditions

2 Fig 1 a, The Venous Window Needle Guide (VWING) vascular needle guide (Vital Access Corp, Salt Lake City, Utah). The cannulation device consists of a single piece of titanium that allows repeated access of an arteriovenous fistula (AVF) through a single puncture site (buttonhole technique). b, The schematic image shows the VWING sutured to the anterior AVF wall using the eight suture slots. Cannulation is allowed using the buttonhole technique 3 weeks after implantation. c, Each VWING device is 17.7 mm long and available in 7- and 9-mm widths for variation in vessel diameter. AVF depth variation is accommodated by available heights of 4, 6, 8, and 10 mm. All images were provided by and reproduced with permission of Vital Access Corporation. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

3 Fig 2 Patient recruitment. SAVE, Salvage of AV Fistulae.
Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

4 Fig 3 Kaplan-Meier curve for fistula primary patency.
Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

5 Fig 4 Kaplan-Meier curve for fistula primary assisted patency.
Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

6 Fig 5 Kaplan-Meier curves demonstrating patency related to interventions at the Venous Window Needle Guide (VWING; Vital Access Corp, Salt Lake City, Utah) site compared with those remote from the VWING. AVF, Arteriovenous fistula; SAVE, Salvage of AV Fistulae. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

7 Fig 6 Kaplan-Meier curve for primary functional patency of the Venous Window Needle Guide (VWING; Vital Access Corp, Salt Lake City, Utah). Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

8 Fig 7 Kaplan-Meier curve for secondary functional patency for the Venous Window Needle Guide (VWING; Vital Access Corp, Salt Lake City, Utah). Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © Terms and Conditions

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