Standardized definitions for hemodialysis vascular access

Area of Science:

• Nephrology
• Vascular Surgery
• Clinical Research

Background:

• Vascular access dysfunction is a major cause of morbidity and mortality in end-stage renal disease (ESRD) patients.
• Dysfunction affects all hemodialysis (HD) access types: arteriovenous fistulas, arteriovenous grafts, and tunneled catheters.
• Standardized terminology and classification are crucial for advancing clinical research in HD access dysfunction.

Purpose of the Study:

• To establish standardized definitions for vascular access (VA) research.
• To provide working definitions for epidemiology, function, patency, and complications across all VA types.
• To facilitate improved quality and efficiency in vascular access research.

Main Methods:

• Formation of the North American Vascular Access Consortium (NAVAC), a multidisciplinary, multicenter network of experts.
• Consortium comprises nephrologists and interventional nephrologists with expertise in HD vascular access.
• Focus on developing common standards for terminology and classification in vascular access research.

Main Results:

• The consortium's initial manuscript provides standardized definitions for key aspects of vascular access.
• Definitions cover epidemiology, vascular access function, vascular access patency, and complications.
• These standards aim to unify research efforts and improve outcomes.

Conclusions:

• Standardized definitions are essential for advancing research in hemodialysis vascular access dysfunction.
• The NAVAC network will conduct observational studies and randomized controlled trials.
• Improved research quality and efficiency are expected to impact patient outcomes positively.