title: Conversion of indwelling chest port catheters to tunneled central venous catheters.
abstract: OBJECTIVE
  To determine the safety and efficacy of the conversion of subcutaneous chest wall infusion ports to tunneled central venous catheters.
  
  
  METHODS
  During a period of 34 months, 67 patients were referred for conversion of indwelling subcutaneous chest wall ports to tunneled central venous catheters as part of a bone marrow transplant protocol. Six patients were deemed unacceptable for conversion and the remaining 61 underwent successful conversion. All patients had functioning surgically placed single-lumen (n = 50) or double-lumen (n = 11) chest ports, which were removed to maintain the original venous access sites for placement of a tunneled central venous catheter, incorporating the chest wall pocket for tunneling, in 46 patients (75%). A new tunnel was created in the other 15 patients. There were no immediate complications and all patients were followed until catheter removal or patient demise with the catheter in place.
  
  
  RESULTS
  57 of 61 (93%) catheters were used without evidence of infection for 23-164 days (mean, 57 d) after placement. Two (3%) were removed (both at 26 days) because of persistent neutropenic fever without physical signs or laboratory evidence of catheter infection, and two (3%) were removed (at 11 and 77 days) because of proven catheter infection, yielding an overall infection rate of 1.2 per 1,000 catheter days. Two catheters required exchange and two required stripping because of decreased function, resulting in an overall catheter-related complication rate of 2.4 per 1,000 catheter days.
  
  
  CONCLUSIONS
  Indwelling subcutaneous chest wall infusion ports can be safely converted to tunneled central venous catheters, even in an immunocompromised patient population, with a low risk of complications such as infection.
authors.affiliation: Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710, USA.
authors.forename: B K
authors.initials: BK
authors.lastname: Brodwater
authors.forename: J S
authors.initials: JS
authors.lastname: Silber
authors.forename: T P
authors.initials: TP
authors.lastname: Smith
authors.forename: N J
authors.initials: NJ
authors.lastname: Chao
authors.forename: P V
authors.initials: PV
authors.lastname: Suhocki
authors.forename: J M
authors.initials: JM
authors.lastname: Ryan
authors.forename: G E
authors.initials: GE
authors.lastname: Newman
mesh_terms: D000328:Adult; D016026:Bone Marrow Transplantation; D002405:Catheterization, Central Venous / Q000295:instrumentation*; D002408:Catheters, Indwelling; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D012189:Retrospective Studies; D013909:Thorax; D016896:Treatment Outcome