Doctors test which arm vein is safer for critical catheters

This study compared two different ultrasound-guided techniques for placing a central venous catheter, a tube inserted into a large vein for medication or monitoring. Researchers randomly assigned 132 patients needing this procedure to have the catheter placed either near the collarbone (subclavian vein) or in the armpit area (axillary vein). The goal was to see if one method was better at getting the catheter in successfully on the first tries and had fewer complications like bleeding or lung injury.