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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05210881
Other study ID # HLM_JDR11
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 1, 2019
Est. completion date August 31, 2021

Study information

Verified date January 2022
Source Hôpital Louis Mourier
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Nasal high flow is widely used in critically ill patients admitted to the intensive care unit (ICU) for acute hypoxemic respiratory failure. It has been shown to improve patient comfort, increase oxygenation and reduce need for intubation in some patients. The Respiratory Oxygenation (ROX) index has been established as a simple tool to help clinicians identify those patients who will succeed and those who will fail under nasal high flow and therefore predict the need for intubation. However, when nasal high flow therapy is successful, little is known as to how and when weaning of this device should be performed and what are the predictors of a safe withdrawal of the device. The objectives of this retrospective exploratory study are to identify a cut-off value of the ROX index predictive of success of the withdrawal trial, to describe a one-year use of the withdrawal trial; to describe the ROX value closest to weaning from nasal high flow, and to identify factors associated with success or failure of the withdrawal trial from nasal high flow therapy in patients receiving nasal high flow therapy.


Description:

Although nasal high flow is widely used in critically ill patients admitted to the intensive care unit (ICU) for acute hypoxemic respiratory failure, and its benefits have been shown in multiple studies, little is known as to how and when weaning from the technique device should be performed and what are the predictors of a safe withdrawal. The Respiratory Oxygenation (ROX) index was established and tested to predict outcome of nasal high flow therapy in patients with acute hypoxemic respiratory failure. It combines three parameters available at the bedside that reflect patient's respiratory status: respiratory rate, the level of the inspired fraction of oxygen (FiO2) and pulse oximetry (SpO2). Importantly, the combination of these three parameters outweighed the performance of each parameter taken separately to predict nasal high flow therapy outcome. Since its initial publication, several studies coming from different countries have confirmed the potential for the ROX index to predict need for intubation in patients with acute hypoxemic respiratory failure, thus making a valuable tool accessible to everyone, including nurses, to monitor on a routine basis. Because it reflects the patient's respiratory status, the greater the score, the better the patient's condition. Hence, one may hypothesize that, at the other end of the spectrum of respiratory failure (i.e., at the stage of weaning and withdrawal of the high flow device when the patient has considerably improved), the ROX index may also help identify those patients who will be successfully separated from the nasal high flow support. To date, one study has suggested that among several parameters, the value of the ROX index could be associated with successful cessation of nasal high flow. Here, in a retrospective exploratory study, investigators aim to to identify a cut-off value of the ROX index predictive of success of the withdrawal trial, to describe a one-year use of the withdrawal trial (average duration of use of nasal high flow before weaning, number of weaning trials, number of failed and successful weaning trials.); to describe the ROX value closest to weaning from nasal high flow, and to identify factors associated with success or failure of the withdrawal trial from nasal high flow therapy in patients receiving nasal high flow therapy; A successful withdrawal is defined as the withdrawal of nasal high flow without necessity of placing the patient back on nasal high flow within the following 24h. A failed withdrawal is defined by the need to resume nasal high flow within the 24h hours following the withdrawal. The possible identification of a cut-off value may help clinicians initiate earlier weaning from nasal high flow.


Recruitment information / eligibility

Status Completed
Enrollment 62
Est. completion date August 31, 2021
Est. primary completion date December 31, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - ICU patient treated with nasal high flow Exclusion Criteria: - age < 18 years - concomitant treatment with non-invasive ventilation - acute hypercapnic respiratory failure

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
France Hôpital Louis Mourier, Assistance Publique - Hôpitaux de Paris Colombes

Sponsors (1)

Lead Sponsor Collaborator
Hôpital Louis Mourier

Country where clinical trial is conducted

France, 

References & Publications (3)

Ricard JD, Roca O, Lemiale V, Corley A, Braunlich J, Jones P, Kang BJ, Lellouche F, Nava S, Rittayamai N, Spoletini G, Jaber S, Hernandez G. Use of nasal high flow oxygen during acute respiratory failure. Intensive Care Med. 2020 Dec;46(12):2238-2247. doi: 10.1007/s00134-020-06228-7. Epub 2020 Sep 8. Review. — View Citation

Roca O, Caralt B, Messika J, Samper M, Sztrymf B, Hernández G, García-de-Acilu M, Frat JP, Masclans JR, Ricard JD. An Index Combining Respiratory Rate and Oxygenation to Predict Outcome of Nasal High-Flow Therapy. Am J Respir Crit Care Med. 2019 Jun 1;199(11):1368-1376. doi: 10.1164/rccm.201803-0589OC. — View Citation

Rodriguez M, Thille AW, Boissier F, Veinstein A, Chatellier D, Robert R, Le Pape S, Frat JP, Coudroy R. Predictors of successful separation from high-flow nasal oxygen therapy in patients with acute respiratory failure: a retrospective monocenter study. A — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Value of the Respiratory Oxygenation index (ROX) at nasal high flow withdrawal the ROX index the closest to the time at which nasal high flow is withdrawn will be recorded through each nasal high flow therapy, that lasts an average of 24hours
Secondary use of nasal high flow before weaning average duration of nasal high flow therapy before initiating a withdrawal trial (in hours) through each nasal high flow therapy, that lasts an average of 24 hours
Secondary number of withdrawal trials the number of trials each patient will have performed will be recorded through each nasal high flow therapy, that lasts an average of 24 hours
Secondary number of patients who failed a withdrawal trial withdrawal failure is defined by patients who required to be placed back on nasal high flow after withdrawal of the high flow device within 24 hours of withdrawal. throughout study duration which is a one-year period
Secondary number of patients who succeeded a withdrawal trial withdrawal success is defined by patients that have not required to be placed back on nasal high flow after withdrawal of the high flow device within 24 hours of withdrawal. throughout study duration which is a one-year period
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