Acute Respiratory Failure
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Patients with or without suspicion or confirmation of infection by SARS-CoV-2, of both sexes and aged between 18 and 90 years in acute respiratory failure (ARF)and with indication for the institution of non-invasive ventilation. - Patients with exacerbation of chronic obstructive pulmonary disease (GOLD IV) with hypercapnic ARF with or without suspicion or confirmation of SARS-CoV-2 infection. - Patients with congestive heart failure (NYHA 4) with or without suspected or confirmed SARS-CoV-2 infection.
Exclusion criteria
Exclusion criteria: - Comatose patients (Glasgow Coma Scale <8) or unable to protect the airways. - Patients who refuse to receive non-invasive ventilation. - Presence of facial anomalies, facial trauma and facial burn. - Presentation of vomiting and severe hematemesis. - Massive hemoptysis. - Hemodynamically unstable patients (systolic blood pressure <80 mmHg) or receiving vasopressors / inotropes: ongoing angina / acute myocardial infarction or recently developed arrhythmia with hemodynamic impact. - Patients undergoing recent esophageal or upper respiratory tract surgery (=2 weeks). - Cardiorespiratory arrest. - Patients or legal guardian who does not sign the informed consent form.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Such a primary outcome will be assessed by the number of patients involved in the research who underwent orotracheal intubation until the end of the study. | — |
Secondary
| Measure | Time frame |
|---|---|
| - In-hospital mortality [Period: up to 30 days]. Evaluated by the number of deaths that occurred within 30 days after the patient's involvement in the study. - Differences in RPaO2 / FiO2 in relation to the baseline values (before NIV) [Period: 48 h]. Calculated using the ratio between PaO2 and FiO2 displaced by arterial blood gases. - Improvement of RPaO2 / FiO2 after the beginning of NIV [Period: 1 h after NIV]. - PaCO2 levels [Period: 1 to 24 h after NIV]. Obtained by collecting arterial blood gases in 1 to 24 h after the initiation of NIV. - Blood pressure (BP) and increased hypotension (SBP <80 mmHg or mean arterial pressure <60 mmHg) [Period: up to 24 hours after NIV]. Measured by indirect and continuous blood pressure measurement. - Time between the beginning of NIV and its end (moment of resolution of respiratory failure). Measured through the time between the NIV institution and its end, - Time in the intensive care unit [time period: up to 30 days]. Measured by the number of days the patient stayed in the ICU. - Length of hospital stay of patients who used NIV. Measured by the number of days between admission and discharge from hospital or death. - Adverse effects of the mask: pressure ulcers, skin necrosis, air leak per mask, eye inflammation, gastric distention. Measured using the Questionnaire on acute adverse effects of the NIV mask. - Classification of patient comfort with the mask. Numerical rating scale ranging from 0 (light) to 10 (intense) (Visual analogue scale (VAS)) [Period: appear on pre-hospital discharge]. - Level of satisfaction after using NIV. Image through the Global Impression of Patient Change Questionnaire (PGIC). - NIV success rate with Owner mask or conventional orofacial mask. Success is defined as non-evolution to IOT [Deadline: 1 h since the beginning of NIV]. - Ventilatory variables: tidal volume (CV), minute volume (MV), peak pressure (Peak), FR, FiO2, inspiratory time (Ti), expiratory time (Te), air leakage (Leak), | — |
Countries
Brazil