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Venous thromboembolism after severe injury in children
Claude Cyr1, Bruno Michon, Géraldine Pettersen
1Département de Pédiatrie, Faculté de Médecine, Université de Sherbrooke, Canada. claude.cyr@usherbrooke.ca
Insights
Pediatric trauma patients with high Injury Severity Scores, thoracic or spinal injuries, or venous catheters face an increased risk of venous thromboembolism (VTE). Identifying these high-risk children is crucial for targeted VTE management strategies.
Area of Science:
- Pediatric critical care medicine
- Trauma surgery
- Hematology
Background:
- Deep vein thrombosis (DVT) and pulmonary embolism (PE) are common after major trauma.
- Risk factors and incidence of VTE in injured children are not well-established.
Purpose of the Study:
- To identify the incidence and risk factors for venous thromboembolism (VTE) in severely injured children.
Main Methods:
- Retrospective review of severely injured children (<18 years) diagnosed with VTE between 1999 and 2002.
- Multivariate analysis was used to identify independent risk factors for VTE.
Main Results:
- VTE occurred in 3.3/1,000 pediatric trauma admissions.
- Independent risk factors for VTE included older age, higher Injury Severity Scores, thoracic injuries, spinal injuries, and central venous catheters.
Conclusions:
- Older children with severe injuries, specific injury types (thoracic, spinal), and venous catheters are at significant risk for VTE.
- Identifying high-risk pediatric subgroups is essential for studying VTE prophylaxis, screening, and treatment strategies.
Background:
Deep vein thrombosis and pulmonary embolism are considered common complications after major trauma. Their incidence and the associated risk factors have rarely been identified in injured children.
Methods:
Severely injured children (age <18 years; admitted in a pediatric intensive care unit or length of stay > or = 72 h) with a discharge diagnosis of venous thromboembolism (VTE; deep venous thrombosis and/or pulmonary embolism) were identified from the institutional trauma registry between January 1, 1999 and April 31, 2002. The study centers included a dedicated pediatric trauma center and an adult trauma center with pediatric patients. Risk factors for VTE were identified using multivariate analysis.
Results:
VTE was found in 11 of the 3,291 admissions, for a rate of 3.3/1,000 admissions. Children with VTE were older and had higher Injury Severity Scores. Independent risk factors for VTE included thoracic injuries [odds ratio (OR): 6.9; 95% confidence interval (CI): 1.4-35.1] and spinal injuries (OR: 37.4; 95% CI: 3.5-396.7). The greatest risk of VTE was in children with central venous catheters (OR: 64.0; 95% CI: 16.8-243.9).
Conclusion:
Older children with high Injury Severity Scores, thoracic injuries, spinal injuries or venous catheters are at risk for VTE. Because VTE prophylaxis, screening and treatment are associated with complications and costs, it is essential to identify subgroups of pediatric patients in whom these strategies might be studied.
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