Physiological Study of Low-frequency HFO/HFO-TGI and High-frequency HFO

Launched by UNIVERSITY OF ATHENS · Jan 2, 2014

Keywords

ClinConnect Summary

Rationale of the study Acute Respiratory Distress Syndrome (ARDS) is an acute inflammatory state of the pulmonary parenchyma that causes hypoxemia, atelectasis, pulmonary congestion, and reduction in pulmonary compliance. Mechanical ventilation is actually life-saving, but it may traumatize the lungs (e.g. volutrauma, barotrauma, atelectrauma, and biotrauma). The use of low tidal volumes and high positive end-expiratory pressure (PEEP), aims at attenuating ventilator-associated lung injury. However, ARDS mortality still remains high. High frequency oscillation (HFO) is an alternative ventil...

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Eligibility criteria

• Inclusion Criteria:
• • Acute Respiratory Distress Syndrome (ARDS) according to the Berlin Definition Onset of ARDS within the 72 hours preceding study enrollment PaO2/FiO2 of less than 150 mmHg while ventilated with a positive end-expiratory pressure of at least 10 cmH2O Body weight of more than 40 Kg Age 18-75 years
• Exclusion Criteria:
• • Severe air leak (more than one chest tubes per hemithorax with persistent air leak for more than 72 hours) Systolic blood pressure lower than 90 mmHg, despite maximum support with fluids and vasopressor drugs Significant heart disease Severe chronic obstructive pulmonary disease or asthma Intracranial hypertension Chronic interstitial lung disease with bilateral lung infiltrates Lung biopsy or incision during the current admission Previous lung transplantation or bone marrow transplantation Pregnancy