For patients with End Stage Renal Failure (ESRF), the surgical creation of an Autogenous Arteriovenous Fistula (AVF) or Autogenous Arteriovenous Graft (AVG) is the recognised standard for providing vascular access. A functioning dialysis vascular access is essential to facilitate hemodialysis (HD) treatment. Advantages include improved hemodialysis initiation time, improved dialysis quality, better maintenance of accesses and generally, better outcomes in patients. Unfortunately almost 50% of AVF and AVG fail after a median lifetime of 3 to 7 years and 12 to 18 months respectively. Vascular access dysfunction is a major cause of morbidity and hospitalisation for ESRF patients, costing the healthcare system USD 18 million globally. Venous stenosis and scarring are caused by trauma from surgical access creation when the circuit comes arterialized and from repeated percutaneous punctures from subsequent hemodialysis. This study is performed to evaluate Sirolimus-coated balloon efficacy and safety using MagicTouch™ Drug coated balloon catheter (Concept Medical Inc, Tampa, FL, US) on AVF patency with de novo and recurrent stenosis.
Study Type
OBSERVATIONAL
Enrollment
35
After an initial fistulogram, the lesion will first be predicated with standard high pressure balloon, followed by MagicTouch™ Sirolimus drug coated balloon
Singapore General Hospital
Singapore, Singapore
Target Lesion Primary Patency
No need for clinically driven reintervention of target lesion, no access thrombosis and no significant restenosis (lumen diameter \<2.7mm) on duplex ultrasound
Time frame: 3-months post op
Target Lesion Primary Patency
No need for clinically driven reintervention of target lesion, no access thrombosis and no significant restenosis (lumen diameter \<2.7mm) on duplex ultrasound
Time frame: 6-months post op
Freedom from localised or systemic serious adverse events
Include life-threatening events or those resulting in death, requiring hospitalisation, resulting in permanent disability, or requiring intervention to prevent permanent impairment
Time frame: 30 days post-op
Access circuit patency
Lack of stenosis in any region of the AVF circuit requiring intervention
Time frame: 3 and 6 months post op
Procedural success
Defined as technical success with at least one indicator of hemodynamic or clinical success. I.e. no conduit rupture during any of the procedures requiring bailout stenting.
Time frame: Day of operation
Primary assisted patency
Lack of access circuit thrombosis requiring thrombolysis
Time frame: 3 and 6 months post op
Number of open bypass revision surgery required to maintain access circuit primary patency
Time frame: 3 and 6 months post op
Secondary access patency
Lack of dialysis access abandonment
Time frame: 3 and 6 months post-op
Number of interventions required to maintain access circuit primary patency
Time frame: 3 and 6 months post-op
Event of mortality
Time frame: 6 months post-op
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