Influence of Oxygen on Non-invasive Measurement of Hemoglobin (Hb-O2)

This study is currently recruiting participants.
Verified December 2013 by Hopital Foch
Information provided by (Responsible Party):
Hopital Foch Identifier:
First received: July 16, 2012
Last updated: December 5, 2013
Last verified: December 2013

This study examines the effect of oxygen supplementation on the non-invasive measurement of hemoglobin.

Condition Intervention
Device: hemoglobin measurement

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Influence of the Inspired Oxygen Fraction on the Noninvasive Measurement of Hemoglobin Using Two Different Devices (Namely Pronto 7 and NBM-200)

Resource links provided by NLM:

Further study details as provided by Hopital Foch:

Primary Outcome Measures:
  • influence of the inspired oxygen fraction on the noninvasive measurement of hemoglobin (Pronto 7 and NBM-200 devices) [ Time Frame: one year (end of the recrutement period) ] [ Designated as safety issue: No ]
    Statistical comparison of the 3 measurements (baseline, FiO2 50%, FiO295%) for each device

Secondary Outcome Measures:
  • agreement between the noninvasive methods of measurement of hemoglobin and the laboratory analysis [ Time Frame: one year (end of the recrutement period) ] [ Designated as safety issue: No ]
    Statistical comparison of the 2 devices

Estimated Enrollment: 50
Study Start Date: July 2012
Estimated Study Completion Date: March 2014
Estimated Primary Completion Date: March 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: surgical patients
patients studied just before induction of anesthesia
Device: hemoglobin measurement

Non invasive hemoglobin measurements (Pronto 7 device and NBM-200 device)will be made with :

  • at baseline (simultaneous blood sample for a laboratory measurement of hemoglobin),
  • with the patient breathing oxygen via a face-mask (FiO2 50 ± 5%),
  • with the patient breathing oxygen via a face-mask (FiO2 90 ± 5%) (simultaneous blood sample for a laboratory measurement of hemoglobin).


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • adult patients scheduled for a potentially hemorrhagic surgical procedure

Exclusion Criteria:

  • anomaly (malformation, infection, swelling, irritation, ulceration, degenerative changes or significant edema) of the fingers,
  • tremors.
  Contacts and Locations
Please refer to this study by its identifier: NCT01654913

Contact: Marc Fischler, MD 46252442 ext 00331

Hopital Lariboisière Recruiting
Paris, France, 75010
Contact: Etienne Gayat, MD         
Hopital Foch Recruiting
Suresnes, France, 92151
Contact: Marc Fischler, MD    46252442 ext 00331   
Principal Investigator: Marc Fischler, MD         
Sponsors and Collaborators
Hopital Foch
  More Information

Responsible Party: Hopital Foch Identifier: NCT01654913     History of Changes
Other Study ID Numbers: 2012/16
Study First Received: July 16, 2012
Last Updated: December 5, 2013
Health Authority: France: Direction Générale de la Santé

Keywords provided by Hopital Foch:
hemoglobin determination
oxygen processed this record on April 17, 2014