Document Detail

Accuracy of a continuous noninvasive hemoglobin monitor in intensive care unit patients.
MedLine Citation:
PMID:  21666449     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine whether noninvasive hemoglobin measurement by Pulse CO-Oximetry could provide clinically acceptable absolute and trend accuracy in critically ill patients, compared to other invasive methods of hemoglobin assessment available at bedside and the gold standard, the laboratory analyzer.
DESIGN: Prospective study.
SETTING: Surgical intensive care unit of a university teaching hospital.
PATIENTS: Sixty-two patients continuously monitored with Pulse CO-Oximetry (Masimo Radical-7).
MEASUREMENTS AND RESULTS: Four hundred seventy-one blood samples were analyzed by a point-of-care device (HemoCue 301), a satellite lab CO-Oximeter (Siemens RapidPoint 405), and a laboratory hematology analyzer (Sysmex XT-2000i), which was considered the reference device. Hemoglobin values reported from the invasive methods were compared to the values reported by the Pulse CO-Oximeter at the time of blood draw. When the case-to-case variation was assessed, the bias and limits of agreement were 0.0±1.0 g/dL for the Pulse CO-Oximeter, 0.3±1.3g/dL for the point-of-care device, and 0.9±0.6 g/dL for the satellite lab CO-Oximeter compared to the reference method. Pulse CO-Oximetry showed similar trend accuracy as satellite lab CO-Oximetry, whereas the point-of-care device did not appear to follow the trend of the laboratory analyzer as well as the other test devices.
CONCLUSION: When compared to laboratory reference values, hemoglobin measurement with Pulse CO-Oximetry has absolute accuracy and trending accuracy similar to widely used, invasive methods of hemoglobin measurement at bedside. Hemoglobin measurement with pulse CO-Oximetry has the additional advantages of providing continuous measurements, noninvasively, which may facilitate hemoglobin monitoring in the intensive care unit.
Denis Frasca; Claire Dahyot-Fizelier; Karen Catherine; Quentin Levrat; Bertrand Debaene; Olivier Mimoz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Critical care medicine     Volume:  39     ISSN:  1530-0293     ISO Abbreviation:  Crit. Care Med.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-09-21     Completed Date:  2011-11-18     Revised Date:  2011-12-27    
Medline Journal Info:
Nlm Unique ID:  0355501     Medline TA:  Crit Care Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2277-82     Citation Subset:  AIM; IM    
Centre Hospitalier Universitaire de Poitiers, INSERM ERI 23, and Université de Poitiers, UFR de Médecine-Pharmacie, Poitiers, France.
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MeSH Terms
Blood Gas Monitoring, Transcutaneous
Hemoglobins / analysis*
Hospitals, University / organization & administration
Intensive Care Units / organization & administration*
Middle Aged
Monitoring, Physiologic
Point-of-Care Systems*
Prospective Studies
Reg. No./Substance:
Comment In:
Crit Care Med. 2011 Dec;39(12):2783-4; author reply 2784-5   [PMID:  22094519 ]
Crit Care Med. 2011 Oct;39(10):2369-71   [PMID:  21926497 ]

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