“…However, the procedure involves numerous complications such as arterial puncture, pneumothorax and malpositioning of the catheter tip. [ 1 ] Among all complications, malpositioning has the reported incidence ranging from <1% to >60%. [ 2 ] Although ultrasound, electrocardiogram guidance and real-time X-ray imaging have dramatically reduced the incidence of malposition of needles, guidewires and catheters, significant number of catheter misplacements can still occur.…”