Document Detail

Design and implementation of a portable physiologic data acquisition system.
MedLine Citation:
PMID:  17914307     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To describe and report the reliability of a portable, laptop-based, real-time, continuous physiologic data acquisition system (PDAS) that allows for synchronous recording of physiologic data, clinical events, and event markers at the bedside for physiologic research studies in the intensive care unit. DESIGN: Descriptive report of new research technology. SETTING: Adult and pediatric intensive care units in three tertiary care academic hospitals. PATIENTS: Sixty-four critically ill and injured patients were studied, including 34 adult (22 males and 12 females) and 30 pediatric (19 males and 11 females). INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Data transmission errors during bench and field testing were measured. The PDAS was used in three separate research studies, by multiple users, and for repeated recordings of the same set of signals at various intervals for different lengths of time. Both parametric (1 Hz) and waveform (125-500 Hz) signals were recorded and analyzed. Details of the PDAS components are explained and examples are given from the three experimental physiology-based protocols. Waveform data include electrocardiogram, respiration, systemic arterial pressure (invasive and noninvasive), oxygen saturation, central venous pressure, pulmonary arterial pressure, left and right atrial pressures, intracranial pressure, and regional cerebral blood flow. Bench and field testing of the PDAS demonstrated excellent reliability with 100% accuracy and no data transmission errors. The key feature of simultaneously capturing physiologic signal data and clinical events (e.g., changes in mechanical ventilation, drug administration, clinical condition) is emphasized. CONCLUSIONS: The PDAS provides a reliable tool to record physiologic signals and associated clinical events on a second-to-second basis and may serve as an important adjunctive research tool in designing and performing clinical physiologic studies in critical illness and injury.
Kevin Vinecore; Mateo Aboy; James McNames; Charles Phillips; Rachel Agbeko; Mark Peters; Miles Ellenby; Michael L McManus; Brahm Goldstein
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies     Volume:  8     ISSN:  1529-7535     ISO Abbreviation:  Pediatr Crit Care Med     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-11-08     Completed Date:  2008-02-15     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  100954653     Medline TA:  Pediatr Crit Care Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  563-9     Citation Subset:  IM    
Pulmonary and Critical Care Medicine, Oregon Health & Science University, OR, USA.
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MeSH Terms
Biomedical Research / instrumentation,  methods*
Computer Systems*
Equipment Design*
Hospitals, University
Intensive Care Units*
Intensive Care Units, Pediatric
Middle Aged
Monitoring, Physiologic / instrumentation*,  methods
Point-of-Care Systems*
Telemetry / instrumentation,  methods
User-Computer Interface*
Grant Support
Comment In:
Pediatr Crit Care Med. 2007 Nov;8(6):588-9   [PMID:  17989567 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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