Long-term Catheters
Long-term Catheters - Related Videos
12:37
Surgical Placement of Catheters for Long-term Cardiovascular Exercise Testing in Swine
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Cited by 16 •
2016
Here we present a protocol to assess cardiopulmonary function in awake swine, at rest and during graded treadmill exercise. Chronic instrumentation allows for repeated hemodynamic measurements uninfluenced by cardiodepressive anesthetic agents.
08:51
Hickman Catheter Use for Long-Term Vascular Access in a Preclinical Swine Model
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2023
A reliable and reproducible approach for the insertion and maintenance of a tunneled Hickman catheter for long-term vascular access in swine is described. Placement of a central venous catheter allows for convenient daily sampling of whole blood from awake animals and intravenous administration of medication and fluids.
11:39
Peripheral Intravenous Catheter Insertion
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT The purpose of peripheral intravenous catheter (PIV) insertion is to infuse medications, perform intravenous (IV) fluid therapy, or inject radioactive tracers for special examination procedures. Placing a PIV is an invasive procedure and requires the use of an aseptic, no-touch technique. Common IV venipuncture sites are the arms and hands in adults and the feet in children. According to...
02:51
Catheter-Associated Urinary Tract Infection in a Mouse Model
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2026
Source: Conover, M. S., et al., J. Establishment and Characterization of UTI and CAUTI in a Mouse Model. J. Vis. Exp. (2015)This video demonstrates the procedure for assembling and implanting a transurethral catheter in a female mouse, followed by bacterial inoculation to establish catheter-associated urinary tract infection and investigate biofilm-mediated host-pathogen interactions.
11:39
Central Venous Catheter Insertion: Internal Jugular
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2023
Source: James W Bonz, MD, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA Central venous access is necessary in a multitude of clinical situations, including vascular access, vasopressor and caustic medication delivery, central venous pressure monitoring, intravascular device delivery (pacing wires, Swann-Ganz catheters), volume resuscitation, total parental nutrition, hemodialysis, and frequent phlebotomy. Safe reliable placement of a central venous catheter (CVC) in...
FAQs
Position is maintained by two design strategies: an internal retention balloon can help anchor the device, while a tissue-compatible design supports continued placement within the body. The lumen then provides the passage between the internal site and the external collection or infusion system. This arrangement enables access over an extended period.
Microbial attachment to catheter surfaces can lead to biofilm formation, in which microorganisms persist on the device rather than remaining only in surrounding fluid. During prolonged use, this biological layer can complicate catheter function and contribute to major concerns such as infection or blockage. Recognizing this mechanism explains why sterile technique and ongoing surveillance matter.
Material selection matters because tissue compatibility affects how a retained device interacts with the body. A tissue-compatible design supports continued placement, whereas prolonged catheter use still carries risks of tissue irritation, infection, blockage, and thrombosis. Consequently, selection is not separate from clinical safety: it must be considered alongside sterile technique and surveillance when extended access is needed.
They are central safeguards because prolonged residence creates opportunities for microbial attachment and biofilm formation, while the device can also be associated with infection, blockage, tissue irritation, or thrombosis. Applying sterile technique and continuing to monitor the catheter help balance its practical benefit of sustained access against these potential adverse outcomes.
Long-term catheters become useful when short-term access is impractical and the body requires continuing drainage, medication delivery, or physiological monitoring. They can also support repeated sampling or treatment without creating a new access point for every intervention. Their selection therefore reflects a need for sustained or recurring access, balanced against complications associated with retention.
The principal complications are infection, blockage, tissue irritation, and thrombosis. Infection may be associated with microbial attachment and biofilm formation, whereas blockage can interfere with the lumen's function as a drainage, infusion, or sampling pathway. Tissue irritation and thrombosis reflect additional biological costs of retaining access. These outcomes explain why long-term use requires material consideration and ongoing surveillance.