Investigating the Impact of Combined Inhaled Nitric Oxide and Prone Positioning on the Efficacy in ARDS Patients

Inclusion Criteria:

1. Age 18-80 years;
2. Patients with moderate to severe ARDS on mechanical ventilation

Exclusion Criteria:

1. Patients with severe asthma or acute exacerbation of chronic obstructive pulmonary disease (COPD), lung tumors, post-lung resection, and post-lung transplantation.
2. Patients with hemodynamic instability requiring vasopressor support: dopamine or dobutamine >15 µg/kg/min, norepinephrine >0.3 µg/kg/min.
3. Cardiogenic pulmonary edema.
4. Patients with severe facial deformities, facial trauma, or severe thoracoabdominal trauma that precludes prone positioning ventilation.
5. Mid to late pregnancy.
6. Patients with a history of malignancy or other irreversible diseases/conditions, including those in the terminal stage.
7. Patients expected to be discharged soon or requiring invasive mechanical ventilation for less than 24 hours.
8. Patients currently participating in other studies.