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Hemostasis and thrombosis in critically ill children
Gili Kenet1, Tzipi Strauss, Chaim Kaplinsky
1The Thrombosis Unit, National Hemophilia Center, Sheba Medical Center, Tel-Hashomer, Israel. gili.kenet@sheba.health.gov
Insights
Critically ill children in the pediatric intensive care unit (PICU) face hemostasis issues, increasing risks of bleeding and thrombosis. This review covers conditions, risk factors, and treatments for these complex pediatric hemostasis disorders.
Area of Science:
- Pediatric Critical Care Medicine
- Hematology
- Pediatric Intensive Care Unit (PICU) hemostasis
Background:
- Pediatric intensive care unit (PICU) patients frequently exhibit hemostatic abnormalities.
- Bleeding complications are significant in pediatric surgery, trauma, and cardiac operations.
- Thromboembolic events in children are increasingly recognized due to diagnostic and therapeutic advancements.
Purpose of the Study:
- To review the pathophysiology of hemostasis disorders in critically ill pediatric patients.
- To discuss the risk factors associated with bleeding and thromboembolic events in the PICU.
- To outline current therapeutic options for managing hemostasis abnormalities in this population.
Main Methods:
- Literature review of studies on pediatric intensive care unit (PICU) hemostasis.
- Analysis of pathophysiologic conditions affecting coagulation in critically ill children.
- Synthesis of information on risk factors and treatment strategies.
Main Results:
- Young infants are particularly vulnerable to bleeding and thrombosis due to immature hemostatic systems.
- Conditions like infection, hypotension, and acidosis can precipitate disseminated intravascular coagulation (DIC).
- Disseminated intravascular coagulation (DIC) in critically ill children can manifest as either bleeding or thrombosis.
Conclusions:
- Effective management of hemostasis in critically ill pediatric patients requires a comprehensive understanding of underlying conditions.
- Early recognition and intervention are crucial for mitigating bleeding and thrombotic complications.
- This review provides insights into the challenges and therapeutic approaches for pediatric intensive care unit (PICU) hemostasis.
Abstract:
Patients in the pediatric intensive care unit (PICU) often suffer from a variety of pathophysiologic conditions that are associated with abnormal hemostasis. Bleeding is a major complication of any surgery or trauma, thus patients with inherited or acquired coagulopathies or those experiencing massive trauma or undergoing major (especially cardiac) operations present a special challenge to the ICU experts as well as to the hematologist. Awareness of thromboembolic events in the pediatric population has been increasing in the past few years mainly due to improvement in diagnostic tools, advances in new therapy and procedures, together with an increased index of suspicion. Young infants are at greater risk for either bleeding or thromboembolic events, due to lower concentration of vitamin K-dependent procoagulant clotting factors, reduced thrombin potential, and altered fibrinolytic pathway with low levels of the coagulation inhibitors. The combination of infection, hypotension, acidosis, and release of activated substances, such as tumor necrosis factor, is common after severe trauma or in seriously ill ICU patients and often leads to disseminated intravascular coagulation, which may be complicated either by bleeding or thrombosis. The conditions, risk factors, and therapeutic options available for critically ill PICU patients are discussed in this review.
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