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Extracorporeal membrane oxygenation for pandemic H1N1 2009 respiratory failure.
MedLine Citation:
PMID:  21178913     Owner:  NLM     Status:  In-Process    
BACKGROUND: Severe respiratory failure related to infection with the pandemic influenza A/H1N1 2009 virus is uncommon but possibly life-threatening. If, in spite of maximal conventional critical care, the patient's condition deteriorates, extracorporeal membrane oxygenation (ECMO) may be a life-saving procedure.
METHODS: An observational study approved by the local ethics committee was carried out. Data from all patients treated with ECMO at the ECMO Center Karolinska for influenza A/H1N1 2009-related severe respiratory failure were analyzed. The main outcome measure was survival three months after discharge from our department.
RESULTS: Between July 2009 and January 2010, 13 patients with H1N1 2009 respiratory failure were treated with ECMO. Twelve patients were cannulated for veno-venous ECMO at the referring hospital and transported to Stockholm. One patient was cannulated in our hospital for veno-arterial support. The median ratio of the arterial partial oxygen pressure to the fraction of inspired oxygen (P/F ratio: PaO2 /FiO2) before cannulation was 52.5 (interquartile range 38-60). Four patients were converted from veno-venous to veno-arterial ECMO because of right heart failure (three) or life-threatening cardiac arrhythmias (one). The median maximum oxygen consumption via ECMO was 251 ml/min (187-281 ml/min). Twelve patients were still alive three months after discharge; one patient died four days after discharge due to intracranial hemorrhage.
CONCLUSION: Patients treated with veno-venous or veno-arterial ECMO for H1N1 2009-related respiratory failure may have a favorable outcome. Contributing factors may include the possibility of transport on ECMO, conversion from veno-venous (v-v) or veno-arterial (v-a) ECMO if necessary, high-flow ECMO to meet oxygen requirements and active surgery when needed.
B Holzgraefe; M Broomé; H Kalzén; D Konrad; K Palmér; B Frenckner
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Minerva anestesiologica     Volume:  76     ISSN:  1827-1596     ISO Abbreviation:  Minerva Anestesiol     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375272     Medline TA:  Minerva Anestesiol     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  1043-51     Citation Subset:  IM    
Section for Anaesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Paediatric Anaesthesia and Intensive Care, ECMO Center Karolinska, Karolinska Institute and Karolinska University Hospital Solna, Stockholm, Sweden.
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Comment In:
Minerva Anestesiol. 2010 Dec;76(12):989-91   [PMID:  21178910 ]

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