Influence of Oxygen on Non-invasive Measurement of Hemoglobin

N/ACompletedNCT01654913

Hopital Foch47 enrolled

Overview

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

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Anesthesia

Interventions

hemoglobin measurementDEVICE

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).

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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.

Locations (2)

Hopital Lariboisière

Paris, France

Hopital Foch

Suresnes, France

Outcomes

Primary Outcomes

influence of the inspired oxygen fraction on the noninvasive measurement of hemoglobin (Pronto 7 and NBM-200 devices)

Statistical comparison of the 3 measurements (baseline, FiO2 50%, FiO295%) for each device

Time frame: one year (end of the recrutement period)

Secondary Outcomes

agreement between the noninvasive methods of measurement of hemoglobin and the laboratory analysis

Statistical comparison of the 2 devices

Time frame: one year (end of the recrutement period)

Data from ClinicalTrials.gov

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