**Study Summary:** This study looks at two types of catheters used for hemodialysis, which is a treatment for people with kidney problems. A catheter is a thin tube that helps clean your blood. There are two types of catheters being studied: a *tunnel-cuffed catheter* and a *non-cuffed catheter*. The study aims to find out which type of catheter has fewer infections and other issues when used for a short time. This study involves many centers and includes patients who have catheters placed in a large vein in the neck called the right internal jugular vein. **Key Points:** - You must be at least 18 years old and need hemodialysis due to kidney problems to join. - If you have a history of vein problems or infections, you may not qualify. - The study will compare the safety of the two catheter types based on infection rates and other complications.