[Follow-up of severe adult respiratory distress syndrome]

Area of Science:

• Pulmonology
• Critical Care Medicine
• Respiratory Medicine

Background:

• Adult Respiratory Distress Syndrome (ARDS) is a severe lung injury with high mortality.
• Long-term pulmonary sequelae after severe ARDS in previously healthy young adults are not fully understood.

Purpose of the Study:

• To evaluate the long-term clinical, radiological, and pulmonary function outcomes in young patients following severe ARDS.
• To determine the relationship between ARDS severity and residual lung function impairment.

Main Methods:

• Longitudinal follow-up of 6 patients (19-35 months post-ARDS onset).
• Assessment included clinical evaluation, radiological imaging, and pulmonary function tests (PFTs).
• Analysis focused on ventilatory impairment, gas exchange, and airway obstruction.

Main Results:

• All patients exhibited mild to moderate restrictive ventilatory impairment 19-35 months post-ARDS.
• Five patients had significant exercise-induced arterial hypoxemia.
• Three patients showed reversible airway obstruction; lung function improvement plateaued after the first year.

Conclusions:

• Severe ARDS in young, healthy individuals can result in persistent restrictive lung disease and exercise hypoxemia.
• A correlation exists between ARDS severity and the degree of residual lung function impairment.
• Despite significant lung damage, chronic respiratory failure is rare, supporting intensive care interventions.