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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT05019313
Other study ID # COVID-DIAUS 1.2
Secondary ID
Status Active, not recruiting
Phase
First received
Last updated
Start date April 1, 2020
Est. completion date March 31, 2022

Study information

Verified date August 2021
Source Azienda Sanitaria-Universitaria Integrata di Udine
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Hypoxemic acute respiratory failure is one of the main COVID-19 patients complication that lead to in intensive care hospitalization. This complication determines a variable mortality from 25 to 30%. To correct hypoxemia (often severe) is often needed non-invasive or invasive mechanical ventilation. Mechanical ventilation is not a therapeutic strategy, but it allows to extend the time-to-recovery necessary to solve COVID-19 respiratory failure cause. Calibration of ventilatory support is essential to ensure adequate time-to-recovery without contributing to onset lung and / or diaphragmatic damage. Basal diaphragmatic activity assessment, device for administering the oxygenation support choice and setting ventilatory support parameters are decisive. Ultrasound is the best method for measuring diaphragmatic work. The aim of this study is to evaluate the diaphragmatic thickening fraction in COVID-19 patients admitted to Intensive Care Unit (ICU) for acute respiratory failure and to record its function on weaning.


Description:

Hypoxemic acute respiratory failure in COVID-19 patients often leads to necessity of intubation and mechanical ventilation support. Complications may be severe as Ventilator-Induced Lung Injury (VILI) and respiratory infections. Weaning process from mechanical ventilation is based on respiratory work reduction and mechanical support to allow patient's respiratory ability to recovery. Respiratory muscle strength give an important contribute. Ultrasound diaphragmatic evaluation is essential to evaluate patients respiratory capacity as diaphragm atrophy usually suggest a difficult process and weaning failure. COVID-19 pneumonia represent a particular type of ARDS (acute respiratory distress syndrome), in which different mechanism such as interstitial edema and diffuse alveolar damage, ventilation-perfusion mismatch, intrapulmonary shunt play a role/attend The aim of this study is to assess diaphragmatic function in weaning from mechanical ventilation in patients affected from COVID-19 respiratory failure and his implications.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 38
Est. completion date March 31, 2022
Est. primary completion date June 30, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years to 99 Years
Eligibility Inclusion Criteria: - Hypoxemic respiratory failure in COVID-19 patients during intensive care unit hospitalization - Age> 18 years - Weaning by mechanical ventilation Exclusion Criteria: - tracheostomy, - unstable clinical conditions; - agitation (Richmond Agitation-Sedation Scale (RASS)= + 2) or non-cooperation (Kelly Matthay scale =5); - more than two organ failure - consent refusal

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Evaluation of diaphragmatic contractility by ultrasound
Lung ultrasound is performed during mechanical ventilation weaning. The diaphragmatic thickening fraction is evaluated positioning a linear probe in midaxillary line. Inspiratory and expiratory measurements are bilateral and are M-mode images. Right diaphragmatic thickening fraction has been considered as true and reproducible measurement.

Locations

Country Name City State
Italy Anesthesiology and Intensive Care Clinic - Department of Medicine - ASUIUD Udine

Sponsors (1)

Lead Sponsor Collaborator
Azienda Sanitaria-Universitaria Integrata di Udine

Country where clinical trial is conducted

Italy, 

References & Publications (5)

Azoulay É, Thiéry G, Chevret S, Moreau D, Darmon M, Bergeron A, Yang K, Meignin V, Ciroldi M, Le Gall JR, Tazi A, Schlemmer B. The prognosis of acute respiratory failure in critically ill cancer patients. Medicine (Baltimore). 2004 Nov;83(6):360-370. doi: 10.1097/01.md.0000145370.63676.fb. — View Citation

Gattinoni L, Chiumello D, Caironi P, Busana M, Romitti F, Brazzi L, Camporota L. COVID-19 pneumonia: different respiratory treatments for different phenotypes? Intensive Care Med. 2020 Jun;46(6):1099-1102. doi: 10.1007/s00134-020-06033-2. Epub 2020 Apr 14. — View Citation

Grasselli G, Zangrillo A, Zanella A, Antonelli M, Cabrini L, Castelli A, Cereda D, Coluccello A, Foti G, Fumagalli R, Iotti G, Latronico N, Lorini L, Merler S, Natalini G, Piatti A, Ranieri MV, Scandroglio AM, Storti E, Cecconi M, Pesenti A; COVID-19 Lombardy ICU Network. Baseline Characteristics and Outcomes of 1591 Patients Infected With SARS-CoV-2 Admitted to ICUs of the Lombardy Region, Italy. JAMA. 2020 Apr 28;323(16):1574-1581. doi: 10.1001/jama.2020.5394. Erratum in: JAMA. 2021 May 25;325(20):2120. — View Citation

Thiéry G, Azoulay E, Darmon M, Ciroldi M, De Miranda S, Lévy V, Fieux F, Moreau D, Le Gall JR, Schlemmer B. Outcome of cancer patients considered for intensive care unit admission: a hospital-wide prospective study. J Clin Oncol. 2005 Jul 1;23(19):4406-13. — View Citation

Vetrugno L, Bove T, Orso D, Barbariol F, Bassi F, Boero E, Ferrari G, Kong R. Our Italian experience using lung ultrasound for identification, grading and serial follow-up of severity of lung involvement for management of patients with COVID-19. Echocardiography. 2020 Apr;37(4):625-627. doi: 10.1111/echo.14664. Epub 2020 Apr 15. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other Duration of mechanical ventilation. hours record/assessment of mechanical ventilation after intubation from intubation to the end of mechanical ventilation support
Other ICU and Hospital length of stay and mortality. number of days in ICU and hospital stay from first day of hospitalization (admission to the hospital) to the last day (discharge from the hospital), an average of 90 days
Primary Diaphragmatic function evaluation by measuring right diaphragmatic thickening fraction Right diaphragmatic thickening fraction is evaluated by positioning a linear ultrasound probe at the level of the midaxillary line (pointer oriented towards the axillary cavity). Patient is in the supine position. Inspiratory and expiratory measurements are made as M-mode images. Right diaphragmatic measurement is considered as a reference. . During weaning by mechanical ventilation before attempt of extubation
Secondary Weaning attempt success/failure frequency with consequent need of tracheostomy or endotracheal re-intubation. After extubation it is considered as weaning attempt success a 48 hours time free need of non invasive (not prophylatic) or invasive ventilation with re-intubation and/or tracheostomy After weaning and eventually extubation
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