EPISYNC study : Predictors of patient-ventilator asynchrony in a prospective cohort of patients under invasive mechanical ventilation - Study protocol
Sousa, M. L. D. A. (Universidade de Sao Paulo. Instituto Do Coracao)
Magrans, Rudys (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Hayashi, F. K. (Universidade de Sao Paulo. Instituto Do Coracao)
Blanch, Lluís (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Kacmarek, Robert M (Massachusetts General Hospital (Boston))
Ferreira, J. C. (Universidade de Sao Paulo. Instituto Do Coracao)
Universitat Autònoma de Barcelona

Data:	2019
Resum:	Introduction: Patient-ventilator asynchrony is common during the entire period of invasive mechanical ventilation (MV) and is associated with worse clinical outcomes. However, risk factors associated with asynchrony are not completely understood. The main objectives of this study are to estimate the incidence of asynchrony during invasive MV and its association with respiratory mechanics and other baseline patient characteristics. Methods and analysis: We designed a prospective cohort study of patients admitted to the intensive care unit (ICU) of a university hospital. Inclusion criteria are adult patients under invasive MV initiated for less than 72 hours, and with expectation of remaining under MV for more than 24 hours. Exclusion criteria are high flow bronchopleural fistula, inability to measure respiratory mechanics and previous tracheostomy. Baseline assessment includes clinical characteristics of patients at ICU admission, including severity of illness, reason for initiation of MV, and measurement of static mechanics of the respiratory system. We will capture ventilator waveforms during the entire MV period that will be analysed with dedicated software (Better Care, Barcelona, Spain), which automatically identifies several types of asynchrony and calculates the asynchrony index (AI). We will use a linear regression model to identify risk factors associated with AI. To assess the relationship between survival and AI we will use Kaplan-Meier curves, log rank tests and Cox regression. The calculated sample size is 103 patients. The statistical analysis will be performed by the software R Programming (www. R-project. org) and will be considered statistically significant if the p value is less than 0. 05. Ethics and dissemination: The study was approved by the Ethics Committee of Instituto do Coração, School of Medicine, University of São Paulo, Brazil, and informed consent was waived due to the observational nature of the study. We aim to disseminate the study findings through peer-reviewed publications and national and international conference presentations. Trial registration number: NCT02687802; Pre-results.
Nota:	Funding: The Episync study is supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), grant number 2015/19122-4.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Estudi clínic ; recerca ; Versió publicada
Publicat a:	BMJ open, Vol. 9 Núm. 5 (may 2019) , p. e028601, ISSN 2044-6055

DOI: 10.1136/bmjopen-2018-028601
PMID: 31123002

6 p, 1.0 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències de la salut i biociències > Institut d’Investigació i Innovació Parc Taulí (I3PT)
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