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Impact of Catheter Design on Catheter Survival in Chronic Hemodialysis Patients

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ClinicalTrials.gov Identifier: NCT01649102
Recruitment Status : Completed
First Posted : July 25, 2012
Last Update Posted : January 14, 2015
Information provided by (Responsible Party):
Prof. Dr. An De Vriese, AZ Sint-Jan AV

July 18, 2012
July 25, 2012
January 14, 2015
March 2010
March 2013   (Final data collection date for primary outcome measure)
overall catheter survival rate [ Time Frame: 3 years ]
Same as current
Complete list of historical versions of study NCT01649102 on ClinicalTrials.gov Archive Site
Mechanical catheter dysfunction: number of dialysis sessions requiring urokinase administration per 1000 catheter days; number of catheter removals for mechanical obstruction [ Time Frame: 3 years ]
Same as current
Dialysis efficiency: Kt/V; mean achieved blood flow rate per dialysis session [ Time Frame: 3 years ]
Same as current
Impact of Catheter Design on Catheter Survival in Chronic Hemodialysis Patients
Impact of Catheter Design on Catheter Survival in Chronic Hemodialysis Patients
The trial aims to compare the performance of two tunneled cuffed catheters (TCC) in chronic hemodialysis patients. The design of the catheter may affect the propensity for thrombosis and hence intraluminal infection, as well the percentage of recirculation and hence the efficiency of dialysis.

The use of tunneled cuffed catheters (TCCs) as vascular access is discouraged in the NKF DOQI guidelines, because of their propensity for infection, thrombosis, inadequate and/or irregular blood flow rates and damage to large central veins. In addition, emerging data suggest a link between catheter use and cardiovascular morbidity and mortality. Nevertheless, they are still frequently used in the hemodialysis population, either because of documented inadequate vascular access anatomy, or as a bridge to a functional permanent access.

A large number of TCC are available, that mainly differ with respect to material type, lumen diameter and design, tip design, as well as presence and design of side holes. There is currently no proven advantage of one long-term catheter design over another.

The design of the catheter tip may affect the propensity for thrombosis and hence intraluminal infection, as well the percentage of recirculation, especially when arterial and venous blood tubing are reversed. Commonly used catheters have a staggered tip design, meaning that the outflow tip extends several centimetres (typically a minimum of 2.5 cm) beyond the inflow tip, to prevent recirculation. Other designs are a split tip, or a symmetrical tip. In the latter type, used in the Palindrome® (Covidien) catheter, a spiral separator is incorporated allowing either lumen to be used as the arterial port.

Many catheters have multiple side holes, to decrease shear rate and increase flow on the arterial side and reflecting the belief that backup inflow is necessary in the case of obstruction. However, side holes can also promote thrombosis and infection due to the irregularity of their cut surfaces. Especially the distal side holes comprise a low flow zone with an increased clotting risk. The Palindrome® (Covidien) catheter has laser cut side holes, which are thought to have a smoother surface and a lower tendency to cause thrombosis.

Inadequate blood flow in a catheter is often mended by reversal of the inlet and outlet lumens. However, reversal of flow leads to a substantial increase of recirculation (from 2%-3% to 10%), affecting the efficiency of treatment. It should therefore never be used except temporarily until the problem is definitively corrected. The symmetrical tip design of the Palindrome® (Covidien) catheter allows lumen reversal without increased recirculation.

The present randomized controlled trial (RCT) is designed to evaluate in chronic hemodialysis patients the performance of two TCC with different design: the Palindrome® (Covidien), which is a symmetrical spiral z-tip catheter made from carbothane and the Hemoglide® (Bard), which has a 3 cm staggered tip and is made of polyurethane.

Phase 4
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
  • Chronic Hemodialysis
  • Catheter Related Bloodstream Infection
  • Mechanical Catheter Dysfunction
Device: Tunneled Cuffed Catheter (Palindroom, Hemoglide Bard)

A tunneled cuffed catheter is inserted, randomization between:

  • Palindroom
  • Hemoglide Bard
  • Experimental: Palindroom catheter
    Insertion of Palindroom catheter
    Intervention: Device: Tunneled Cuffed Catheter (Palindroom, Hemoglide Bard)
  • Experimental: Hemoglide Bard Catheter
    Insertion of Hemoglide Bard Catheter
    Intervention: Device: Tunneled Cuffed Catheter (Palindroom, Hemoglide Bard)
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
March 2013
March 2013   (Final data collection date for primary outcome measure)

Inclusion Criteria:

All patients (male or female, age < 18 years) on chronic hemodialysis who require a tunneled cuffed catheter as temporary or definite vascular access are eligible. Written informed consent is required prior to inclusion.

Exclusion Criteria:

  • Pregnancy or breast-feeding
  • Life-expectance of < 6 months due to major co-morbid conditions
  • Inability to provide informed consent
  • Occlusion or inaccessibility of the right internal jugular vein
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
Not Provided
Not Provided
Prof. Dr. An De Vriese, AZ Sint-Jan AV
AZ Sint-Jan AV
Not Provided
Principal Investigator: An S De Vriese, M.D., Ph.D. AZ ST JAN Brugge Oostende AV
AZ Sint-Jan AV
January 2015

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP