Clinical trial NCT00994136: Safety of Catheter Lock With or Without Heparin in Implanted Central Venous Catheters
Official title: Locking of Totally Implanted Venous Access Devices and Tunneled Catheters With or Without Heparin: a Randomised Open-labeled Controlled Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE4
Conditions: Oncology, Medical
Hematologic Disease
Keywords: Catheters, indwelling
Catheterization, Central Venous
Withdrawal occlusion
Heparin lock
Lead sponsor: Universitaire Ziekenhuizen KU Leuven
Sponsor class: OTHER
Collaborators: name: Leuvens Kanker Instituut
First posted: 2009-10-14
Enrollment: 1100
Sex: ALL
Minimum age (years): 1
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: SUPPORTIVE_CARE

Brief summary: Long-term central venous access devices are considered as safe for the administration of medication as chemotherapy, but are also used for blood sampling. For years these catheters have been locked with a heparin solution in order to avoid occlusion. However, no scientific evidence supports heparin locking when the device is not in use. Advanced technology as needleless caps and valved catheters and port reservoirs confirms this trend to use 'saline only' for locking these devices. Therefore the investigators hypothesize is that there will be no difference in proportion of occlusions and catheter related bacteremia in long-term venous access devices locked with 'saline only' versus with heparin.


Eligibility criteria: Inclusion Criteria:

* Oncology and hematology patients
* Life expectancy of minimum of 180 days

Exclusion Criteria:

* second or femoral long-term central venous access device
* known allergy to heparin (HIT)
* coagulation disorders(INR \>2, Blood platelets \> 1,000,000/mm3)
* therapeutic intravenous heparin administration

Primary outcomes:
measure: Withdrawal occlusion
timeFrame: within180 days
Secondary outcomes:
measure: all catheter-related bacteremia
timeFrame: within 180 days
measure: Incidence of functional problems other than withdrawal occlusion
timeFrame: within 180 days
Other outcomes:
Locations:
city: Leuven
country: Belgium
facility: Universitaire Ziekenhuizen Leuven
state: Vlaams-Brabant
Study officials:
affiliation: Universitaire Ziekenhuizen KU Leuven
name: Marguerite Stas, MD, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Stephens LC, Haire WD, Tarantolo S, Reed E, Schmit-Pokorny K, Kessinger A, Klein R. Normal saline versus heparin flush for maintaining central venous catheter patency during apheresis collection of peripheral blood stem cells (PBSC). Transfus Sci. 1997 Jun;18(2):187-93. doi: 10.1016/s0955-3886(97)00008-8.
citation: Kadidal VV, Mayo DJ, Horne MK. Heparin-induced thrombocytopenia (HIT) due to heparin flushes: a report of three cases. J Intern Med. 1999 Sep;246(3):325-9. doi: 10.1046/j.1365-2796.1999.00527.x.
citation: Rama BN, Haake RE, Bander SJ, Ghasem-Zadeh A, Gorla C. Heparin-flush associated thrombocytopenia--induced hemorrhage: a case report. Nebr Med J. 1991 Dec;76(12):392-4.
citation: Bazelly B, Lotz JP, Milleron B. [The maintenance of totally implantable perfusion sites]. Rev Pneumol Clin. 1994;50(1):43-4. No abstract available. French.
citation: Randolph AG, Cook DJ, Gonzales CA, Andrew M. Benefit of heparin in peripheral venous and arterial catheters: systematic review and meta-analysis of randomised controlled trials. BMJ. 1998 Mar 28;316(7136):969-75. doi: 10.1136/bmj.316.7136.969.
citation: Theard JL, Robard S. [Outcome of usage protocols on implantable devices]. Ann Fr Anesth Reanim. 1995;14(6):534-5. doi: 10.1016/s0750-7658(05)80501-5. No abstract available. French.
citation: Smith S, Dawson S, Hennessey R, Andrew M. Maintenance of the patency of indwelling central venous catheters: is heparin necessary? Am J Pediatr Hematol Oncol. 1991 Summer;13(2):141-3. doi: 10.1097/00043426-199122000-00005.
citation: Brown-Smith JK, Stoner MH, Barley ZA. Tunneled catheter thrombosis: factors related to incidence. Oncol Nurs Forum. 1990 Jul-Aug;17(4):543-9.
citation: Kelly C, Dumenko L, McGregor SE, McHutchion ME. A change in flushing protocols of central venous catheters. Oncol Nurs Forum. 1992 May;19(4):599-605.
citation: Goossens GA, Verbeeck G, Moons P, Sermeus W, De Wever I, Stas M. Functional evaluation of conventional 'Celsite' venous ports versus 'Vortex' ports with a tangential outlet: a prospective randomised pilot study. Support Care Cancer. 2008 Dec;16(12):1367-74. doi: 10.1007/s00520-008-0436-y. Epub 2008 Apr 15.
citation: McDiarmid S, Hamelin L, Huebsch LB. Leading change: Retrospective evaluation of a nurse-led initiative in vascular access options for autologous stem cell transplant recipients ranging from Hickman catheters to peripherally inserted central catheters. J Infus Nurs. 2006 Mar-Apr;29(2):81-8. doi: 10.1097/00129804-200603000-00005.
citation: Horan TC, Andrus M, Dudeck MA. CDC/NHSN surveillance definition of health care-associated infection and criteria for specific types of infections in the acute care setting. Am J Infect Control. 2008 Jun;36(5):309-32. doi: 10.1016/j.ajic.2008.03.002. No abstract available.
citation: Caers J, Fontaine C, Vinh-Hung V, De Mey J, Ponnet G, Oost C, Lamote J, De Greve J, Van Camp B, Lacor P. Catheter tip position as a risk factor for thrombosis associated with the use of subcutaneous infusion ports. Support Care Cancer. 2005 May;13(5):325-31. doi: 10.1007/s00520-004-0723-1. Epub 2004 Nov 5.
citation: Petersen J, Delaney JH, Brakstad MT, Rowbotham RK, Bagley CM Jr. Silicone venous access devices positioned with their tips high in the superior vena cava are more likely to malfunction. Am J Surg. 1999 Jul;178(1):38-41. doi: 10.1016/s0002-9610(99)00124-5.
citation: Brouns F, Schuermans A, Verhaegen J, De Wever I, Stas M. Infection assessment of totally implanted long-term venous access devices. J Vasc Access. 2006 Jan-Mar;7(1):24-8. doi: 10.1177/112972980600700105.
citation: Hadaway LC. Flushing to reduce central catheter occlusions. Nursing. 2000 Oct;30(10):74. doi: 10.1097/00152193-200030100-00037. No abstract available.
citation: Ryder M. The role of biofilm in vascular catheter-related infections. 15-25. 2001. Ref Type: Serial (Book,Monograph)
citation: Cossey V, Thelissen MJ, Goossens GA, Stas M, Schuermans A. Needleless positive-pressure mechanical valve connectors: are they safe? Clin Microbiol Infect 2008;S121-666.doi:10.1111/j.1469-0691.2008.02007.x.