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This presentation explores the critical importance of instrument choice in vascular occlusion, particularly in urgent clinical settings. It contrasts the use of sharp needles and blunt cannulas, supported by a retrospective study involving 370 dermatologists and 1.7 million syringes. Key findings reveal that cannulas significantly reduce occlusion risk, with a 77.1% lower odds compared to needles. While most occlusions are benign, the presentation highlights the anatomical risk patterns and...