Physiologic Effects of High Flow Nasal Therapy in Patients With Acute Hypoxemic Respiratory Failure (OPTIFLOW)
Summary
The aim of the study is to assess, in patients with acute hypoxemic respiratory failure, the short term physiologic effects of the high flow oxygen nasal therapy (Optiflow), in term of inspiratory muscle effort, gas exchange, comfort and dyspnea
Description
The administration of a known concentration of oxygen is an important part of routine care of the patient admitted in intensive care unit for acute hypoxemic respiratory failure. A new high flow oxygen delivery system (Fisher and Paykel Health care) has been developed (Optiflow). The system used a heated humidifier and heated breathing circuit via a nasal interface. High flow nasal therapy (Optiflow) is associated with the generation of significant positive airway pressure in healthy volunteers. Positive expiratory pressure may have a number of benefits in respiratory failure which include improved ventilation/perfusion matching with improved oxygenation, reduced airways resistance and reduced work of breathing. Moreover high flow nasal therapy may improve oxygen administration by decreasing oxygen dilution, decreasing death space and using high levels of humidification
Study Design
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment
Conditions
Respiratory Failure
Intervention
O2stand, CPAP, Optiflow
Location
Pellegrin Hospital, Recovery Unit
Bordeaux
France
33076
Status
Active, not recruiting
Source
University Hospital, Bordeaux
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT01056952
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
High-frequency Jet Ventilation
Respiratory support system used primarily with rates of about 100 to 200/min with volumes of from about one to three times predicted anatomic dead space. Used to treat respiratory failure and maintain ventilation under severe circumstances.
Extracorporeal Membrane Oxygenation
Application of a life support system that circulates the blood through an oxygenating system, which may consist of a pump, a membrane oxygenator, and a heat exchanger. Examples of its use are to assist victims of smoke inhalation injury, respiratory failure, and cardiac failure.
Hantavirus Pulmonary Syndrome
Acute respiratory illness in humans caused by the Muerto Canyon virus whose primary rodent reservoir is the deer mouse Peromyscus maniculatus. First identified in the southwestern United States, this syndrome is characterized most commonly by fever, myalgias, headache, cough, and rapid respiratory failure.
Asphyxia Neonatorum
Respiratory failure in the newborn. (Dorland, 27th ed)
Benzolamide
Selective renal carbonic anhydrase inhibitor. It may also be of use in certain cases of respiratory failure.
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