Describe a Hickman\Broviac catheter and compare it to a central line catheter
Both are silicone catheters that are very similar in design. The Hickman is a modification of the Broviac catheter and is probably the most frequently used of the two.
A Hickman\Broviac catheter was originally designed to be a right atrial catheter used for long-term administration of substances, such as TPN. It is still used for this purpose but it is now recommended that the catheter tip float in the superior vena cava instead of the right atrium.6 It is made of a very soft, flexible silicone that is less reactive than other catheters. Part of the catheter lies in a subcutaneous tunnel and emerges just lateral to the sternum at approximately the fourth or fifth rib. These catheters differ from standard central line catheters in that they have a Luer-Lok connector that can attach to I.V. tubing or be capped off when not in use.7
A central line catheter is a long, fine catheter inserted into a vein for the same purpose as the Hickman\Broviac catheter. It is intended for relatively short-term use. It is commonly inserted into the right or left subclavian vein and then threaded into the superior vena cava. The jugular vein and other veins can be used.
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