Translumbar tunneled dialysis catheters (TDC): Outcomes between patients with normal and abnormal body mass index (BMI)

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Intravenous literature: Nadolski, G.J., Trerotola, S.O., William Stavropoulos, S., Shlansky-Goldberg, R.D., Soulen, M.C. and Farrelly, C. (2013) Translumbar Hemodialysis Catheters in Patients with Limited Central Venous Access: Does Patient Size Matter? Journal of Vascular and Interventional Radiology. May 8th. [Epub ahead of print].

Abstract:

PURPOSE: To describe a single institutional experience with translumbar tunneled dialysis catheters (TDC) and compare outcomes between patients with normal and abnormal body mass index (BMI).

MATERIALS AND METHODS: Translumbar TDCs placed between January 2002 and July 2011 were reviewed retrospectively. There were 33 patients; 18 had a normal BMI<25, and 15 had an abnormal BMI>25. Technical outcome, complications, indications for exchange or removal, and BMI were recorded. Catheter dwell time, catheter occlusion rate, frequency of malposition, and infection rates were collected.

RESULTS: There were 92 procedures (33 initial placements) with 7,825 catheter days. The technical success rate was 100%. Two minor (2.2%) and three major (3.3%) complications occurred. The complication rate did not differ significantly between patients with a normal BMI and patients with an abnormal BMI. Median catheter time in situ (interquartile range) for all patients was 61 (113) days, for patients with normal BMI was 66 (114) days, and for patients with abnormal BMI was 56 (105) days (P = .9). Primary device service intervals for all patients, patients with normal BMI, and patients with abnormal BMI were 47 (96) days, 63 (98) days, and 39 (55) days (P = .1). Secondary device service intervals for all patients, patients with normal BMI, and patients with abnormal BMI were 147 (386) days, 109 (124) days, and 409 (503) days (P = .23). Catheter-related central venous thrombosis rate was 0.01 per 100 catheter days (n = 1).

CONCLUSIONS: Translumbar TDC placement can provide effective hemodialysis in patients with limited venous reserve regardless of the patient’s BMI. An abnormal BMI (>25) does not significantly affect complication rate, median catheter time in situ, or primary or secondary device service interval of translumbar TDCs.

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