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Published on: July 3, 2014
Intensive blood and plasma exchange for treatment of coagulopathy in meningococcemia
K B Churchwell1, M L McManus, P Kent
1Multidisciplinary intensive Care Unit, Children's Hospital, Boston, Massachusetts 02115, USA.
Insights
Intensive plasma exchange (IPE) or whole blood exchange (WBE) effectively treated coagulopathy in critically ill children with meningococcemia. This procedure improved coagulation markers and survival rates without causing fluid overload.
Area of Science:
- Pediatric Critical Care Medicine
- Hematology
- Infectious Diseases
Background:
- Fulminant meningococcemia presents with purpura and disseminated intravascular coagulation (DIC), often leading to poor prognoses.
- Standard medical therapy may be insufficient for critically ill pediatric patients with severe coagulopathy.
Purpose of the Study:
- To evaluate the safety and efficacy of intensive plasma exchange (IPE) or whole blood exchange (WBE) in pediatric patients with fulminant meningococcemia and DIC.
- To assess the impact of IPE/WBE on coagulation parameters and patient outcomes.
Main Methods:
- Eight pediatric patients with fulminant meningococcemia, purpura, and DIC received IPE/WBE in addition to standard therapy.
- IPE/WBE utilized fresh frozen plasma and cryoprecipitate as replacement solutions, performed with a continuous flow system.
- Coagulation parameters (fibrinogen, PT, APTT) and fluid balance were monitored.
Main Results:
- IPE/WBE rapidly improved coagulation parameters: fibrinogen increased, PT and APTT decreased significantly.
- Seven of eight patients (87.5%) survived the initial presentation; the only early death was due to meningitis with cerebral edema.
- The procedure was safe, with no significant bleeding or cardiovascular complications, and no evidence of fluid overload.
Conclusions:
- IPE/WBE is a safe and effective therapeutic option for critically ill pediatric patients with meningococcemia-induced coagulopathy.
- This exchange therapy can rapidly correct coagulopathy without inducing fluid overload, improving survival in high-risk patients.
Abstract:
Eight pediatric patients with fulminant meningococcemia, purpura, and disseminated intravascular cogulation who by multiple prognostic scoring systems were anticipated to have a poor outcome underwent intensive plasma exchange (IPE) or whole blood exchange (WBE) in addition to standard medical therapy. IPE/WBE was initiated shortly after admission with a mixture of both fresh frozen plasma and cryoprecipitate as the replacement solution. All IPE procedures were performed using a continuous flow system and a red cell prime. The mean fibrinogen level increased from 62 to 192 mg/dl, the prothrombin time (PT) decreased from a mean of 32.4 seconds to 15.1 seconds, and the mean activated partial thromboplastin time (APTT) decreased from 89.5 seconds to 40.1 seconds following completion of the initial IPE/WBE. There was a corresponding improvement in all coagulation factor levels but only slight improvement in antithrombin III (ATIII) and protein C levels. Seven of eight patients survived (87.5%) their initial presentation with the sole early death attributed to meningitis with cerebral edema. Mean fluid balance after the procedure was +10.8 +/- 5.87 cc/kg. There were no significant bleeding or cardiovascular complications during the procedure. There was no clinical or radiographic evidence of fluid overload after the procedure. This experience demonstrates that IPE/WBE may be conducted safely in critically ill, unstable pediatric patients and is effective in rapidly improving coagulopathy without fluid overload.
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