Volume 17, Number 11—November 2011
CME ACTIVITY - Research
Deaths Associated with Pandemic (H1N1) 2009 among Children, Japan, 2009–2010
Table 1
Cause | Definition |
---|---|
Unexpected cardiopulmonary arrest | Cardiopulmonary arrest without clear findings of respiratory failure, cardiomyopathy, or encephalopathy |
Respiratory failure | Desaturation, need for oxygen supplementation or mechanical ventilation or both, associated with radiologic findings of pneumonia or acute lung injury |
Myocarditis | Markedly reduced cardiac output, severe and refractory arrhythmia, or severe circulatory collapse |
Viral sepsis | Refractory hypotension and rapidly progressing multiorgan failure associated with at least 2 of the following: tachypnea; leukopenia <4000 cells/μL or leukocytosis >12,000 cells/μL; tachycardia; body temperature >38.0°C or <36.0°C; cold extremities; and increased capillary refill time |
Encephalopathy | At least 1 of the following: altered mental state without profound respiratory and cardiac failure or neuroimaging findings consistent with encephalopathy such as marked brain edema, focal lesions, and blurred gray-white matter junction |
Incidental | Other findings that are not directly attributable to influenza infection |
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