PURPOSE: Ultrahigh-pressure (UHP) balloon catheters were compared with @entity101 ( @entity101 ) balloon catheters to determine if there was a difference in patency after percutaneous transluminal angioplasty ( @entity865 ) of venous anastomotic stenoses. MATERIALS AND METHODS: A retrospective study was conducted from January 2001 to September 2005 that included 22 @entity1 with synthetic hemodialysis grafts who underwent 110 @entity865 procedures for venous anastomotic stenoses. Data collected included graft configuration and location, percent @entity850 , balloon type used, residual @entity850 , and total access blood flow before and after intervention. Patency from time of initial @entity865 to the next intervention was estimated with the Kaplan-Meier technique, with initial failures included in the analysis. RESULTS: A total of 55 PTAs were performed in each group. Technical success rate was 96% (n = 106) and clinical success rate was 100%. Median survival times were 4.6 months for the UHP cohort and 5.4 months for the @entity101 group. When each event was considered independent, the difference was significant (P = .014). However, when each @entity865 event was considered dependent on earlier @entity865 events, no significant difference in patency was observed (P = .64). The mean increases in access blood flow rate by ultrasound dilution (available for 71 events) after @entity865 were 264 mL/min with UHP and 524 mL/min with @entity101 (P = .14, Student t test). One minor complication (0.9%) of focal extravasation after @entity865 occurred and resolved with @entity1162 . CONCLUSION: Routine use of UHP for @entity865 of venous anastomotic stenoses in synthetic hemodialysis grafts was not associated with any significant change in patency compared with routine @entity101 .

Ultrahigh-pressure versus XXXX angioplasty for treatment of venous anastomotic stenosis in hemodialysis grafts: is there a difference in patency?

@entity1 :: ('9606', 'Species') :: ['patients'] @entity101 :: ('MESH:D006973', 'Disease') :: ['HP balloon angioplasty', 'HP', 'high-pressure'] @entity865 :: ('CHEBI:61432', 'Chemical') :: ['PTA'] @entity1162 :: ('MESH:D008133', 'Disease') :: ['prolonged balloon inflation'] @entity850 :: ('MESH:D003251', 'Disease') :: ['stenosis']
@entity101 :: (MESH:D006973,Disease) :: ['high-pressure']
