Tunneled central venous catheter tip position reviewed

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Older patients and lines placed 1.5 vertebral bodies below the carina are less likely to become malpositioned” Gish et al (2016).

Abstract:

BACKGROUND: Suboptimal position of tunneled central venous catheters (Broviacs) decreases long-term catheter longevity, incurring morbidity and cost. We postulated that catheter malposition is related to patient’s age, technique used, and initial catheter tip location (CTL).

METHODS: We performed a retrospective review with 1-year follow-up of Broviacs placed in patients at our children’s hospital from 3/2010 to 10/2013. We defined malposition as a noncentral CTL that required replacement, excluding catheters physically dislodged. We used logistic regression to determine whether age, technique and CTL predicted malposition with p-value

RESULTS: Overall, 404 upper body Broviacs were placed in 282 children (median age=1.4years [IQR:0.45-5.35]). Thirty-six (8.9%) were replaced for malposition, at median of 84.5days [IQR:36-159]. We found that older children were less likely to develop malposition (OR=0.91,p=0.002). Adjusting for patient age and placement technique, catheters placed ≥1.5 vertebral bodies below the carina were less likely to be malpositioned (OR=0.37,p=0.015). Cox-regression shows the lateral technique to have the lowest rate of malposition within 90days (HR=0.30,p=0.03).

CONCLUSION: Older patients and lines placed 1.5 vertebral bodies below the carina are less likely to become malpositioned. Using the lateral approach for insertion improves catheter longevity.

Reference:

Gish, J., Wright, T., Gadepalli, S. and Jarboe, M. (2016) Avoiding postoperative malposition of upper body tunneled central venous catheters in children: Evaluating technique and depth of placement. Journal of Pediatric Surgery. February 10th. [Epub ahead of print].

doi: 10.1016/j.jpedsurg.2016.01.010.

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