Ventilatory Weaning Guided by a New Index

NCT ID: NCT04512677

Last Updated: 2021-08-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

144 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-10-29

Study Completion Date

2021-01-10

Brief Summary

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Mechanical ventilation (MV) is an essential therapy for patients with acute respiratory failure. The ventilatory weaning process should be started when the precipitating causes of the use of the ventilatory prosthesis are resolved. Inappropriately slow weaning exposes the patient to unnecessary discomfort, increases the risk of complications and increases the cost of hospital treatment. In this sense, indices that can predict successful weaning are of great value.

Detailed Description

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Mechanical ventilation (MV) is an essential therapy for patients with acute respiratory failure. The ventilatory weaning process should be started when the precipitating causes of the use of the ventilatory prosthesis are resolved. Inappropriately slow weaning exposes the patient to unnecessary discomfort, increases the risk of complications and increases the cost of hospital treatment. In this sense, indices that can predict successful weaning are of great value. Our study aimed to evaluate the performance of a new ventilatory weaning index, the timed inspiratory effort index (TIE index), as a weaning predictor in comparison with the traditionally used spontaneous breathing test (SBT). The study is a randomized controlled trial of a cohort of mechanically ventilated patients over 24 hours admitted to the ICU of Hospital e Clínica São Gonçalo (HCSG), located in the city of São Gonçalo, State of Rio de Janeiro, Brazil. The TIE index is calculated as the ratio of the maximum inspiratory pressure developed in the last 30 seconds of a 60 second period of unidirectional airway occlusion by the time required to reach this value.

Conditions

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Respiration, Artificial

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized controlled study
Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

SINGLE

Outcome Assessors
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Study Groups

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No Interventions: Control

Conventional clinical treatment and using the ventilatory weaning protocol and standard extubation with the spontaneous breathing test (SBT) with the T-piece in 30 minutes.

Group Type NO_INTERVENTION

No interventions assigned to this group

Experimental: Intervention

Conventional clinical treatment and using the Timed Inspiratory Effort (TIE index), which guided the decision to ventilate weaning and extubation.

Group Type EXPERIMENTAL

Timed Inspiratory Effort (TIE index)

Intervention Type DEVICE

Conventional clinical treatment and using the Timed Inspiratory Effort (TIE index), which guided the decision to ventilate weaning and extubation.

Interventions

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Timed Inspiratory Effort (TIE index)

Conventional clinical treatment and using the Timed Inspiratory Effort (TIE index), which guided the decision to ventilate weaning and extubation.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Inclusion and exclusion criteria

Our study included patients over 18 years old, under mechanical ventilation, who remained for more than 24 hours of invasive ventilatory assistance and who were able to start the process of weaning. Exclusion criteria comprised tracheostomy, chronic neurological disorders, low level of alertness, and chronic immune suppression states, including positive serology for HIV.
Minimum Eligible Age

18 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Universidade Federal Fluminense

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jecemir R Lugon, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Universidade Federal Fluminense

Marcos p Godoy, PT, MSc

Role: STUDY_CHAIR

Hospital e Clínica São Gonçalo

Locations

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Universidade Federal Fluminense

Niterói, Rio de Janeiro, Brazil

Site Status

Hospital e Clínica São Gonçalo

São Gonçalo, Rio de Janeiro, Brazil

Site Status

Countries

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Brazil

References

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MacIntyre N. Another Look at Outcomes from Mechanical Ventilation. Am J Respir Crit Care Med. 2017 Mar 15;195(6):710-711. doi: 10.1164/rccm.201610-1988ED. No abstract available.

Reference Type BACKGROUND
PMID: 28294658 (View on PubMed)

Boles JM, Bion J, Connors A, Herridge M, Marsh B, Melot C, Pearl R, Silverman H, Stanchina M, Vieillard-Baron A, Welte T. Weaning from mechanical ventilation. Eur Respir J. 2007 May;29(5):1033-56. doi: 10.1183/09031936.00010206.

Reference Type RESULT
PMID: 17470624 (View on PubMed)

de Souza LC, Guimaraes FS, Lugon JR. Evaluation of a new index of mechanical ventilation weaning: the timed inspiratory effort. J Intensive Care Med. 2015 Jan;30(1):37-43. doi: 10.1177/0885066613483265. Epub 2013 Apr 10.

Reference Type RESULT
PMID: 23753238 (View on PubMed)

da Silva Guimaraes B, de Souza LC, Cordeiro HF, Regis TL, Leite CA, Puga FP, Alvim SH, Lugon JR. Inspiratory Muscle Training With an Electronic Resistive Loading Device Improves Prolonged Weaning Outcomes in a Randomized Controlled Trial. Crit Care Med. 2021 Apr 1;49(4):589-597. doi: 10.1097/CCM.0000000000004787.

Reference Type RESULT
PMID: 33332819 (View on PubMed)

da Silva Guimaraes BL, de Souza LC, Guimaraes FS, Lugon JR. Serial Weekly Measurements of the Timed Inspiratory Effort Index Can Predict Successful Prolonged Weaning. Respir Care. 2019 Oct;64(10):1286-1292. doi: 10.4187/respcare.06367. Epub 2019 Mar 26.

Reference Type RESULT
PMID: 30914494 (View on PubMed)

de Souza LC, Guimaraes FS, Lugon JR. The timed inspiratory effort: a promising index of mechanical ventilation weaning for patients with neurologic or neuromuscular diseases. Respir Care. 2015 Feb;60(2):231-8. doi: 10.4187/respcare.03393. Epub 2014 Oct 28.

Reference Type RESULT
PMID: 25352688 (View on PubMed)

Beduneau G, Pham T, Schortgen F, Piquilloud L, Zogheib E, Jonas M, Grelon F, Runge I, Nicolas Terzi, Grange S, Barberet G, Guitard PG, Frat JP, Constan A, Chretien JM, Mancebo J, Mercat A, Richard JM, Brochard L; WIND (Weaning according to a New Definition) Study Group and the REVA (Reseau Europeen de Recherche en Ventilation Artificielle) Network double dagger. Epidemiology of Weaning Outcome according to a New Definition. The WIND Study. Am J Respir Crit Care Med. 2017 Mar 15;195(6):772-783. doi: 10.1164/rccm.201602-0320OC.

Reference Type RESULT
PMID: 27626706 (View on PubMed)

Subira C, Hernandez G, Vazquez A, Rodriguez-Garcia R, Gonzalez-Castro A, Garcia C, Rubio O, Ventura L, Lopez A, de la Torre MC, Keough E, Arauzo V, Hermosa C, Sanchez C, Tizon A, Tenza E, Laborda C, Cabanes S, Lacueva V, Del Mar Fernandez M, Arnau A, Fernandez R. Effect of Pressure Support vs T-Piece Ventilation Strategies During Spontaneous Breathing Trials on Successful Extubation Among Patients Receiving Mechanical Ventilation: A Randomized Clinical Trial. JAMA. 2019 Jun 11;321(22):2175-2182. doi: 10.1001/jama.2019.7234.

Reference Type RESULT
PMID: 31184740 (View on PubMed)

Sklar MC, Burns K, Rittayamai N, Lanys A, Rauseo M, Chen L, Dres M, Chen GQ, Goligher EC, Adhikari NKJ, Brochard L, Friedrich JO. Effort to Breathe with Various Spontaneous Breathing Trial Techniques. A Physiologic Meta-analysis. Am J Respir Crit Care Med. 2017 Jun 1;195(11):1477-1485. doi: 10.1164/rccm.201607-1338OC.

Reference Type RESULT
PMID: 27768396 (View on PubMed)

Girard TD, Alhazzani W, Kress JP, Ouellette DR, Schmidt GA, Truwit JD, Burns SM, Epstein SK, Esteban A, Fan E, Ferrer M, Fraser GL, Gong MN, Hough CL, Mehta S, Nanchal R, Patel S, Pawlik AJ, Schweickert WD, Sessler CN, Strom T, Wilson KC, Morris PE; ATS/CHEST Ad Hoc Committee on Liberation from Mechanical Ventilation in Adults. An Official American Thoracic Society/American College of Chest Physicians Clinical Practice Guideline: Liberation from Mechanical Ventilation in Critically Ill Adults. Rehabilitation Protocols, Ventilator Liberation Protocols, and Cuff Leak Tests. Am J Respir Crit Care Med. 2017 Jan 1;195(1):120-133. doi: 10.1164/rccm.201610-2075ST.

Reference Type RESULT
PMID: 27762595 (View on PubMed)

Jung B, Moury PH, Mahul M, de Jong A, Galia F, Prades A, Albaladejo P, Chanques G, Molinari N, Jaber S. Diaphragmatic dysfunction in patients with ICU-acquired weakness and its impact on extubation failure. Intensive Care Med. 2016 May;42(5):853-861. doi: 10.1007/s00134-015-4125-2. Epub 2015 Nov 16.

Reference Type RESULT
PMID: 26572511 (View on PubMed)

Other Identifiers

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Timed Inspiratory Effort Index

Identifier Type: -

Identifier Source: org_study_id

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