title: Fibrin sheath and its relation to subsequent events after tunneled dialysis catheter exchange.
abstract: The use of tunneled catheters (TDC) for chronic hemodialysis is frequent and often fails due to fibrin or thrombus and infection. We hypothesized that the presence of fibrin sheath in TDC increases the risk for subsequent catheter malfunction and infection. We did a retrospective review of TDC exchanges and de novo placements from January 2005 to September 2011. Demographic data, information about the catheter procedure, and radiological data were collected. Final outcome analysis included 168 procedure events. Three groups of catheter procedures were identified: catheter exchange without a fibrin sheath (CE), catheter exchange with a treated fibrin sheath (CEF), and de novo catheter placements (DCP). Fibrin sheath incidence was 47%. In the CEF group, there was no statistical difference in the incidence of subsequent infections or dysfunctions (7% and 60%, respectively), when compared with the CE group (9% and 43%, respectively), (p=0.3). Mean time to subsequent dysfunction or infection was similar for CEF and CE (135 vs. 136 days, p-value, 0.98). Fibrin sheaths are common and should be evaluated when performing TDC exchange. If the fibrin sheath is treated, there is no increased incidence in subsequent catheter dysfunction or infection compared with patients without a fibrin sheath.
authors: Division of Pulmonary, Critical Care and Sleep Medicine and Division of Nephrology and Hypertension, University of Cincinnati, Cincinnati, OhioUniversity of Louisville and Robley Rex VA Medical Center, Louisville, KentuckyUniversity of Louisville, Louisville, Kentucky.
authors: Almothana
authors: A
authors: Shanaah
authors: Michael
authors: M
authors: Brier
authors: Amy
authors: A
authors: Dwyer
mesh_terms: D000800:Angioplasty, Balloon; D061807:Catheter Obstruction / Q000209:etiology*; D002405:Catheterization, Central Venous; D005260:Female; D005337:Fibrin; D006801:Humans; D007676:Kidney Failure, Chronic / Q000000981:diagnostic imaging / Q000401:mortality / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D006435:Renal Dialysis / Q000009:adverse effects / Q000295:instrumentation*; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome; D062666:Vascular Access Devices; D014654:Vascular Patency
chemical_list: D005337:Fibrin