Arteriovenous fistulas(AVFs)are a vital form of AV access for patients requiring hemodialysis,but they link to overall morbidity and mortality when they fail to *** most common cause of AVF non-maturation is neointima...
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Arteriovenous fistulas(AVFs)are a vital form of AV access for patients requiring hemodialysis,but they link to overall morbidity and mortality when they fail to *** most common cause of AVF non-maturation is neointimal hyperplasia(NIH).To minimize the deleterious effects of NIH,a perivascular wrap composed of polycaprolactone(PCL),rosuvastatin(ROSU),and gold nanoparticles(AUNPs)was *** study assessed the impact of ROSU-eluting,radiopaque resorbable perivascular wraps on pathologic NIH in a chronic kidney disease(CKD)rodent model of *** PCL wraps containing AuNPs and/or ROSU were monitored for in vitro tensile strength,AuNP release,ROSU elution,and effect on cellular *** wraps were then implanted around an AVF in a CKD rodent model for in vivo ultrasound(US)and micro-computed tomography(mCT)*** specimens were collected for histological *** viability was preserved in the presence of both AuNP-and ROSU-containing *** vitro release of ROSU and AuNPs correlated with in vivo findings of decreasing radiopacity on mCT over ***-loaded wraps had higher radiopacity(1270.0-1412.0 HU at week 2)compared with other wraps(103.5-456.0 HU),which decreased over *** addition of ROSU decreased US and histologic measurements of *** reduced NIH seen with ROSU-loaded perivascular wraps suggests a synergistic effect between mechanical support and anti-hyperplasia ***,AuNP loading increased wrap ***,our results show that AuNP-and ROSU-loaded PCL wraps induce AVF maturation and suppress NIH while facilitating optimal implanted device visualization.
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