Study Results
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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COMPLETED
NA
13 participants
INTERVENTIONAL
2017-07-25
2019-08-01
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
TREATMENT
DOUBLE
Study Groups
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Continuous Positive Airway Pressure (CPAP)
Participants in the intervention group will use CPAP device, for a period of 40 minutes, with the following parameters: PEEP of 10cmH2O and FiO2 0.21.
Continuous Positive Airway Pressure (CPAP)
In the first moment, CPAP will be installed, and the researcher will hold a mask in the position in which it is coherent, explaining the method to the patient and allowing their gradual adaptation. Patients will adapt for a few minutes to make sure the mask is consistent with the specifications, so that the patient is comfortable. Participants in the intervention group will start with a PEEP of 1cmH2O that will increase by 2 cmH2O until a PEEP of 10 cmH2O is reached. Therefore, participants in the intervention group will remain with CPAP, PEEP of 10cmH2O, FiO2 0.21, for a period of 40 minutes.
CONTROL
Participants in the control group will use CPAP device, for a period of 40 minutes, with the following parameters: PEEP of 1cmH2O and FiO2 0.21.
Continuous Positive Airway Pressure (CPAP)
In the first moment, CPAP will be installed, and the researcher will hold a mask in the position in which it is coherent, explaining the method to the patient and allowing their gradual adaptation. Patients will adapt for a few minutes to make sure the mask is consistent with the specifications, so that the patient is comfortable. Participants in the intervention group will start with a PEEP of 1cmH2O that will increase by 2 cmH2O until a PEEP of 10 cmH2O is reached. Therefore, participants in the intervention group will remain with CPAP, PEEP of 10cmH2O, FiO2 0.21, for a period of 40 minutes.
Interventions
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Continuous Positive Airway Pressure (CPAP)
In the first moment, CPAP will be installed, and the researcher will hold a mask in the position in which it is coherent, explaining the method to the patient and allowing their gradual adaptation. Patients will adapt for a few minutes to make sure the mask is consistent with the specifications, so that the patient is comfortable. Participants in the intervention group will start with a PEEP of 1cmH2O that will increase by 2 cmH2O until a PEEP of 10 cmH2O is reached. Therefore, participants in the intervention group will remain with CPAP, PEEP of 10cmH2O, FiO2 0.21, for a period of 40 minutes.
Eligibility Criteria
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Inclusion Criteria
The criteria for the classification of STRA is based on the Global Initiative for Asthma (GINA) guidelines:
* Asthma requiring treatment in steps 4-5 of GINA (≥800 mg/day of budesonide or equivalent, associated with long-acting ß2-adrenergic agonist (LABA);
* Use of continuous oral corticoid or omalizumab, presenting uncontrolled disease;
* Uncontrolled disease characterized by: 1) persistent symptoms or asthma control test (ACT) \<20 (\> 3 months); 2) acute exacerbations (with intensive care unit admission, at least 2 hospitalizations, or 2 courses of oral corticoid over the last 12 months); Or 3) non-reversible obstruction of pulmonary function, even after corticoid use.
Exclusion Criteria
6 Years
18 Years
ALL
No
Sponsors
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Pontificia Universidade Católica do Rio Grande do Sul
OTHER
Responsible Party
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Marcio Vinicius Fagundes Donadio
Professor
Principal Investigators
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Marcio VF Donadio, PHD
Role: PRINCIPAL_INVESTIGATOR
Pontificia Universidade Católica do Rio Grande do Sul
Locations
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Pontifífia Universidade Católica do Rio Grande do Sul
Porto Alegre, Rio Grande do Sul, Brazil
Countries
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References
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Bateman ED, Hurd SS, Barnes PJ, Bousquet J, Drazen JM, FitzGerald JM, Gibson P, Ohta K, O'Byrne P, Pedersen SE, Pizzichini E, Sullivan SD, Wenzel SE, Zar HJ. Global strategy for asthma management and prevention: GINA executive summary. Eur Respir J. 2008 Jan;31(1):143-78. doi: 10.1183/09031936.00138707.
Worldwide variation in prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and atopic eczema: ISAAC. The International Study of Asthma and Allergies in Childhood (ISAAC) Steering Committee. Lancet. 1998 Apr 25;351(9111):1225-32.
McDonald VM, Vertigan AE, Gibson PG. How to set up a severe asthma service. Respirology. 2011 Aug;16(6):900-11. doi: 10.1111/j.1440-1843.2011.02012.x.
Jang AS, Lee JH, Park SW, Shin MY, Kim DJ, Park CS. Severe airway hyperresponsiveness in school-aged boys with a high body mass index. Korean J Intern Med. 2006 Mar;21(1):10-4. doi: 10.3904/kjim.2006.21.1.10.
O'Donnell DE, Sanii R, Giesbrecht G, Younes M. Effect of continuous positive airway pressure on respiratory sensation in patients with chronic obstructive pulmonary disease during submaximal exercise. Am Rev Respir Dis. 1988 Nov;138(5):1185-91. doi: 10.1164/ajrccm/138.5.1185.
Wang CH, Lin HC, Huang TJ, Yang CT, Yu CT, Kuo HP. Differential effects of nasal continuous positive airway pressure on reversible or fixed upper and lower airway obstruction. Eur Respir J. 1996 May;9(5):952-9. doi: 10.1183/09031936.96.09050952.
Busk M, Busk N, Puntenney P, Hutchins J, Yu Z, Gunst SJ, Tepper RS. Use of continuous positive airway pressure reduces airway reactivity in adults with asthma. Eur Respir J. 2013 Feb;41(2):317-22. doi: 10.1183/09031936.00059712. Epub 2012 Jul 26.
Pianosi PT, Davis HS. Determinants of physical fitness in children with asthma. Pediatrics. 2004 Mar;113(3 Pt 1):e225-9. doi: 10.1542/peds.113.3.e225.
Ferrazza AM, Martolini D, Valli G, Palange P. Cardiopulmonary exercise testing in the functional and prognostic evaluation of patients with pulmonary diseases. Respiration. 2009;77(1):3-17. doi: 10.1159/000186694. Epub 2009 Jan 14.
Hallstrand TS, Bates PW, Schoene RB. Aerobic conditioning in mild asthma decreases the hyperpnea of exercise and improves exercise and ventilatory capacity. Chest. 2000 Nov;118(5):1460-9. doi: 10.1378/chest.118.5.1460.
Chatkin M, Menezes AM, Albernaz E, Victora CG, Barros FC. [Asthmatic children's risk factors for emergency room visits, Brazil]. Rev Saude Publica. 2000 Oct;34(5):491-8. doi: 10.1590/s0034-89102000000500009. Portuguese.
Schuh C, Fritscher LG, Chapman KR, Fritscher CC. The prevalence of asthma and atopy in schoolchildren from Porto Alegre, Brazil, has plateaued. Respir Med. 2015 Mar;109(3):308-11. doi: 10.1016/j.rmed.2015.01.014. Epub 2015 Jan 31.
Barbosa e Silva O, Saraiva LC, Sobral Filho DC. Treadmill stress test in children and adolescents: higher tolerance on exertion with ramp protocol. Arq Bras Cardiol. 2007 Dec;89(6):391-7. English, Portuguese.
Beaver WL, Wasserman K, Whipp BJ. A new method for detecting anaerobic threshold by gas exchange. J Appl Physiol (1985). 1986 Jun;60(6):2020-7. doi: 10.1152/jappl.1986.60.6.2020.
Santuz P, Baraldi E, Filippone M, Zacchello F. Exercise performance in children with asthma: is it different from that of healthy controls? Eur Respir J. 1997 Jun;10(6):1254-60. doi: 10.1183/09031936.97.10061254.
Other Identifiers
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CPAP
Identifier Type: -
Identifier Source: org_study_id
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