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Schematic diagram of arteriovenous fistula anatomy. A. Brachial or radial artery (BA/RA) cephalic fistula shows the arterial anastomosis (AA), distal swing segment or juxta-anastomotic segment (DSS/JAS), puncture zone (PZ), cephalic arch (CA), and axillary and subclavian veins (AS and SC). B. Brachial-basilic transposition fistula and proximal swing segment (PSS). Abbreviation: BV, basilic vein.
