What is a tunneled hemodialysis catheter?

During the hemodialysis, blood is removed from the patient's body, undergoing a machine that mechanically removes toxins and dirt from the blood that the patient returns to. This process is often used in patients with long -term or short -term kidney failure. The catheter is often surgically implanted internally to simplify the process of approaching blood supply. The tunnel hemodialysis catheter is associated with blood vessels in one area, but the tunnel below it and brought the skin in another.

Surgery is often performed in patients who are expected to receive long -term hemodialyis to facilitate this process. Between the vein and the artery, usually on the wrist or hands, a fistula or opening between two parts of the body is formed. Every time a person receives treatment, usually three times a week, the needles are inserted into the fistula area. One is designed to send blood to the machine and the other is used to return the cleaned blood to the body.

This is an ongoing process and most of the blood remains circulated in the patient's body. Somehowá krev je vždy ve stroji na hemodialýze, která je čištěna. Používá se píštěle, protože poskytuje nejjednodušší přístup k rychlému průtoku krve, takže hemodialýza zrychluje.

pacienti, kteří jsou dočasně na hemodialýze, obvykle nedostanou píštěl. Místo toho je katétr chirurgicky vložen do velké tepny a chirurg sešívá na místě. The approach is obtained by ports at the ends of the catheter tubes, so it is not necessary to put the patient with more needles every time hemodialyis is necessary.

Někdy je katétr umístěn poblíž tepny a opouští pokožku na stejném místě. Častěji je katétr vložen do velké krevní cévy, jako je krční tepna v krkutělo a skrz hrudní stěnu. Když je katétr umístěn do krevních cév na jednom místě a vynesen z těla v jiném, označuje se jako tunelový hemodialyzační katétr.

Existují dva hlavní důvody pro použití tunelového hemodialyzačního katétru. Tunelování zvyšuje stabIlita catheter, because it is harder to knock it when most of it is tunneled under the skin. Another reason for the use of tunnel hemodialysis catheter is to help minimize the risk of infection. When a catheter is used, it creates a way for bacteria directly into the bloodstream. The tunneling process separates the hole on the skin from where the catheter enters the body, reducing the risk of infection.