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A Porcine Model of Acute Autologous Pulmonary Embolism
Published on: September 6, 2024
Pulmonary embolism in two patients after severe hepatic trauma
Joanne K Claveria1, Michael T Meyer1, Martin K Wakeham1
1Division of Pediatric Critical Care Medicine, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, WI, USA.
Insights
Severe hepatic trauma patients, especially children, face venous thromboembolism (VTE) risks. This case report highlights catheter-directed thrombolysis as a potential treatment for pediatric VTE following hepatic trauma.
Area of Science:
- Pediatric Surgery
- Vascular Surgery
- Critical Care Medicine
Background:
- Severe hepatic trauma necessitates damage control laparotomy and perihepatic packing, increasing venous thromboembolism (VTE) risk.
- Existing VTE prevention and treatment guidelines are often extrapolated from adult data, posing challenges for pediatric patients.
- Pediatric VTE management after major abdominal surgery requires specialized consideration.
Observation:
- This case report details two pediatric patients who developed VTE, including pulmonary embolism, post-hepatic trauma surgery.
- One patient experienced hemodynamically significant pulmonary emboli, treated successfully with catheter-directed thrombolysis.
- The second patient presented with a vena caval thrombus and subsequent pulmonary embolism, managed with anticoagulation.
Findings:
- Catheter-directed thrombolysis demonstrated efficacy in improving respiratory and hemodynamic status in a pediatric patient with severe pulmonary embolism.
- Surveillance imaging identified VTE, enabling timely intervention and resource allocation.
- Anticoagulation with heparin and enoxaparin was effective for managing vena caval and pulmonary thrombi in the second patient.
Implications:
- Proactive surveillance imaging in pediatric hepatic trauma patients can facilitate the timely mobilization of critical resources like interventional radiology.
- Catheter-directed thrombolysis emerges as a potentially viable and effective treatment for life-threatening VTE in critically ill pediatric surgical patients.
- This experience underscores the need for tailored VTE management strategies in pediatric trauma care.
Abstract:
Patients with severe hepatic trauma requiring damage control laparotomy and perihepatic packing are at risk for venous thromboembolism (VTE). Prevention and treatment of VTE in this population is problematic, especially in children for whom adult guidelines are often adapted. The following case report describes two children who developed VTE with associated pulmonary embolism after damage control laparotomy and perihepatic packing for hepatic trauma. The first patient had hemodynamically significant pulmonary emboli. He received catheter-directed thrombolysis with subsequent improvement in ventilation and need for inotropic support. The second patient had a vena caval thrombus detected on surveillance ultrasound and later developed a pulmonary embolus, both of which were treated with heparin and enoxaparin. Our experience suggests that surveillance imaging of these patients may allow for prospective mobilization of specialized resources, such as interventional radiology support or cardiopulmonary bypass equipment, and that catheter-directed thrombolysis may be a viable treatment modality in these critically ill and injured children.
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