title: Physiologic data acquisition system and database for the study of disease dynamics in the intensive care unit.
abstract: OBJECTIVE
  To describe a real-time, continuous physiologic data acquisition system for the study of disease dynamics in the intensive care unit.
  
  
  METHODS
  Descriptive report.
  
  
  METHODS
  A 16-bed pediatric intensive care unit in a tertiary care children's hospital.
  
  
  METHODS
  A total of 170 critically ill or injured pediatric patients.
  
  
  METHODS
  None.
  
  
  METHODS
  None.
  
  
  RESULTS
  We describe a computerized data acquisition and analysis system for the study of critical illness and injury from the perspective of complex dynamic systems. Both parametric (1 Hz) and waveform (125-500 Hz) signals are recorded and analyzed. Waveform data include electrocardiogram, respiration, systemic arterial pressure (invasive and noninvasive), central venous pressure, pulmonary arterial pressure, left and right atrial pressures, intracranial pressure, body temperature, and oxygen saturation. Details of the system components are explained and examples are given from the resultant physiologic database of signal processing algorithms and signal analyses using linear and nonlinear metrics.
  
  
  CONCLUSIONS
  We have successfully developed a real-time, continuous physiologic data acquisition system that can capture, store, and archive data from pediatric intensive care unit patients for subsequent time series analysis of dynamic changes in physiologic state. The physiologic signal database generated from this system is available for analysis of dynamic changes caused by critical illness and injury.
authors.affiliation: Division of Pediatric Critical Care, Doernbecher Children's Hospital, Oregon Health Sciences University, Portland, USA.
authors.forename: Brahm
authors.initials: B
authors.lastname: Goldstein
authors.forename: James
authors.initials: J
authors.lastname: McNames
authors.forename: Bruce A
authors.initials: BA
authors.lastname: McDonald
authors.forename: Miles
authors.initials: M
authors.lastname: Ellenby
authors.forename: Susanna
authors.initials: S
authors.lastname: Lai
authors.forename: Zhiyoung
authors.initials: Z
authors.lastname: Sun
authors.forename: Donald
authors.initials: D
authors.lastname: Krieger
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Sclabassi
mesh_terms: D000465:Algorithms; D002648:Child; D003625:Data Collection; D016208:Databases, Factual; D006776:Hospitals, Pediatric; D006801:Humans; D015278:Intensive Care Units, Pediatric / Q000706:statistics & numerical data*; D008991:Monitoring, Physiologic; D010829:Physiological Phenomena