An Uncommon Arteriovenous Fistula Resulting From Haemodialysis Catheterization Despite Applying Ultrasound Guidance: Malposition Of Catheter Into Right Subclavian Artery

Ultrasound-guided central venous catheterization could reduce the complication rate and increase first time success rate. However, without substantial experience and caution, it could lead to serious complications. We presented a rare case of malposition of the temporary haemodialysis catheter into the right subclavian artery with arteriovenous fistula after real-time 2D ultrasound-guided catheterization into right internal jugular vein. After the occurrence of this complication, we learned that emergency physicians should confirm the position of end portion of the catheter within the target vessel's lumen even when the catheterization was done with real-time 2D ultrasound guidance. (Hong Kong j.emerg.med. 2011;18:166-168)