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MONITORING OF ACUTE STROKE PATIENTS

  • US 20110201950A1
  • Filed: 10/07/2009
  • Published: 08/18/2011
  • Est. Priority Date: 10/07/2008
  • Status: Abandoned Application
First Claim
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1. A method of monitoring an acute stroke patient, comprising:

  • a) obtaining signals of impedance plethysmography (IPG) and photoplethysmography (PPG) in the patient, at least once an hour, for at least six hours;

    b) applying a same or substantially same algorithm to the IPG and PPG signals to obtain first and second measures, respectively, of cerebral hemodynamics of the patient;

    c) finding a measure based on comparing the first and second measures; and

    d) applying a rule about alerting or not alerting medical personnel based on any of values, amount of change, and direction and rate of change of the measure based on comparing the first and second measures;

    wherein the first and second measures each use an effective rise time of a cardiac cycle of the respective signal, or each use an integral of the respective signal over an effective rise time.

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