The appropriate management of nonmaturing arteriovenous (AV) fistulae continues to be a controversial issue. While coil embolization of accessory side-branch veins can be performed to encourage maturation of nonmaturing AV fistulae, the true efficacy and optimal @entity1 population are not well understood. Fistulagrams performed on nonmaturing AV fistulae were retrospectively reviewed in 145 @entity1 (86 males, median age 63  years) for the presence of accessory veins. @entity292 and accessory vein measurements were obtained, as were rates of eventual @entity292 maturation after accessory vein coil embolization. Of 145 nonmaturing fistulae, 49 (34%) had a @entity850 without any accessory veins, 76 (52%) had a @entity850 and one or more accessory veins, and 20 (14%) had an accessory vein without concurrent @entity850 . Eighteen AV fistulae had one or more accessory veins without coexisting @entity850 . Nine fistulae had a caliber decrease immediately downstream from the accessory vein. Coil embolization of dominant accessory veins with a caliber decrease immediately downstream (n  =  6) resulted in a 100% eventual @entity292 maturation rate versus 67% for fistulae without this configuration (n  =  6, p  =  0.15). Accessory vein size was not correlated with maturation rates (p  =  0.51). The majority of nonmaturing fistulae with accessory veins had a coexisting @entity850 . Higher maturation rates may result with selected anatomic parameters, although additional studies with more robust sample sizes are needed prior to definitive conclusions.

Accessory veins in nonmaturing autogenous arteriovenous fistulae: analysis of anatomic features and impact on XXXX maturation.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity850 :: ('MESH:D003251', 'Disease') :: ['stenosis'] @entity292 :: ('MESH:D005402', 'Disease') :: ['fistula', 'Fistula']
@entity292 :: (MESH:D005402,Disease) :: ['fistula']
