This protocol addresses hand, foot and mouth disease that has progressed to autonomic nervous system (ANS) dysregulation alongside established cardiopulmonary failure — the last and most severe stage of the disease, carrying very poor outcomes.
Beyond ANS dysregulation, this stage is characterised by one or more of: hypotension or shock, pulmonary oedema or pulmonary haemorrhage, or heart failure. The combination of these findings defines the highest-acuity HFMD presentation.
Care at this stage centres on mechanical ventilation and judicious intravenous fluid therapy; the complete protocol details the cardiovascular support strategy and any additional measures to be considered.