Comparison of Clinical Outcomes of Mini Midline Catheters With Different Placement Sites: a Randomized Controlled Trial

"The tube was placed in the upper arm in the test group and in the forearm in the control group. The veins were selected according to anatomical criteria (vein diameter and depth), and the puncture site was protected with a sterile cavity towel. The cannulation nurse wore sterile gloves and injected local anesthesia (1 mL of lidocaine) before venipuncture. Venipuncture was always performed using real-time ultrasound-guided visualization of the vein-guiding needle using an out-of-plane approach, and once the tip of the needle was visualized within the vein and the blood flowed back through the needle, a guidewire was introduced and the needle was removed. After the needle is removed, the cannula is advanced into the vein, the guidewire is removed, and the cannula is attached to an extension cord closed with a needleless connector."