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The Impact of Central Venous Catheters on Pediatric Venous Thromboembolism
Julie Jaffray1, Mary Bauman2, Patti Massicotte2
1Children's Hospital Los Angeles, University of Southern California Keck School of Medicine , Los Angeles, CA , USA.
Insights
Central venous catheter (CVC)-related venous thromboembolism (VTE) is increasing in children. More research is needed to identify specific risk factors and effective prevention strategies for pediatric CVC-VTE.
Area of Science:
- Pediatric Medicine
- Hematology
- Critical Care Medicine
Background:
- Central venous catheter (CVC) use is rising in pediatric populations.
- This increase is associated with a growing incidence of pediatric venous thromboembolism (VTE).
Purpose of the Study:
- To review the literature on risk factors for CVC-VTE in children.
- To identify available prevention methods for CVC-VTE in pediatric patients.
Main Methods:
- A comprehensive literature review was conducted.
- The review focused on studies investigating CVC-VTE in pediatric populations.
Main Results:
- CVC-VTE incidence varied widely (0-74%) based on patient population, CVC type, imaging, and study design.
- No consistent risk factors were identified for CVC type, material, insertion technique, or location.
- High-risk pediatric groups include those with cancer, congenital heart disease, GI failure, infection, ICU admission, or trauma.
Conclusions:
- Current evidence does not consistently identify specific CVC characteristics that increase VTE risk.
- Pediatric patients with specific comorbidities are at higher risk for CVC-VTE.
- Large, prospective pediatric trials are necessary to determine definitive risk factors and effective prevention strategies, as adult prophylactic methods lack pediatric validation.
Abstract:
The use of central venous catheters (CVCs) in children is escalating, which is likely linked to the increased incidence of pediatric venous thromboembolism (VTE). In order to better understand the specific risk factors associated with CVC-VTE in children, as well as available prevention methods, a literature review was performed. The overall incidence of CVC-VTE was found to range from 0 to 74%, depending on the patient population, CVC type, imaging modality, and study design. Throughout the available literature, there was not a consistent determination regarding whether a particular type of central line (tunneled vs. non-tunneled vs. peripherally inserted vs. implanted), catheter material, insertion technique, or insertion location lead to an increased VTE risk. The patient populations who were found to be most at risk for CVC-VTE were those with cancer, congenital heart disease, gastrointestinal failure, systemic infection, intensive care unit admission, or involved in a trauma. Both mechanical and pharmacological prophylactic techniques have been shown to be successful in preventing VTE in adult patients, but studies in children have yet to be performed or are underpowered. In order to better determine true CVC-VTE risk factors and best preventative techniques, an increase in large, prospective pediatric trials needs to be performed.
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