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Hyperleukocytosis: Emergency Management.
MedLine Citation:
PMID:  23180411     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Hyperleukocytosis is defined as peripheral blood leukocyte count exceeding 100,000/mm(3). Acute leukemia is the most common etiology in pediatric practice. Hyperleukocytosis is a medical emergency. The increased blood viscosity, secondary to high white cell count and leukocyte aggregates, results in stasis in the smaller blood vessels. This predisposes to neurological, pulmonary or gastrointestinal complications. In addition, patients are at risk for tumor lysis syndrome due to the increased tumor burden. Initial management includes aggressive hydration, prevention of tumor lysis syndrome, and correction of metabolic abnormalities. A red cell transfusion is not indicated in a hemodynamically stable child, as it adversely affects the blood viscosity. Leukapheresis is the treatment of choice for a very high count, or in patients with symptomatic hyperleukocytosis. The technical expertise required, a relative difficult venous access in younger children, risk of anticoagulation and possible non-availability of the procedure in emergency hours are limitations of leukapheresis. However, it is a rewarding procedure and performed with relative ease in centers that perform the procedure frequently. An exchange transfusion is often a practical option when hyperleukocytosis is complicated with severe anemia. The partial exchange aids in correcting both, without the risk of volume overload or hyperviscosity, which are the limitations of hydration and blood transfusion, respectively. Etiology and management of hyperleukocytosis in relevance to the pediatric emergency room is outlined.
Authors:
Richa Jain; Deepak Bansal; R K Marwaha
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-24
Journal Detail:
Title:  Indian journal of pediatrics     Volume:  -     ISSN:  0973-7693     ISO Abbreviation:  Indian J Pediatr     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417442     Medline TA:  Indian J Pediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Hematology/Oncology Unit, Department of Pediatrics, Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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