Use of 'Mechanical Power' as a Predictor of Increased Serum and Pulmonary Proinflammatory Cytokine Concentrations in Patients With Acute Hypoxemic Respiratory Failure: A Prospective Observational Study

University of Roma La Sapienza

Status: Enrolling

Conditions: Mechanical Power

Treatments: Device: Mechanical ventilation

Study type: Observational

Funder types: Other

Identifiers

NCT06425354

RIA24.1

Details and patient eligibility

About

The aim of this study is to report the proportion of patients with acute hypoxemic respiratory failyre (AHRF) undergoing mechanical ventilation who exceed 17 J/min of mechanical power (MP) and the difference in terms of proinflammatory cytokine concentration in blood samples and bronchoalveolar lavage.

The main questions it aims to answer are:

1. Which is the proportion of patients who exceed 17 J/min of mechanical power (MP) during the first 72 hours of mechanical ventilation?
2. Is there a difference in terms of cytokine concentration in patients undergoing mechanical power >17 J/min compared to <17 J/min?

Patients will be divided into two groups based on respiratory mechanics measurements: low MP group (average MP <17 J/min) and high MP group (average MP ≥17 J/min). The researchers will collect blood and BAL samples and perform cytokine assays.

Enrollment: 150 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients with AHRF (P/F <300 mmHg) undergoing invasive mechanical ventilation within 7 days from the onset of symptoms
• Invasive mechanical ventilation for less than 6 hours
• Evidence of newly developed lung consolidation on chest imaging (X-ray, CT)
• Age ≥18 years

Exclusion criteria

• Prior invasive mechanical ventilation during the same hospitalization
• Tracheostomy
• Severe anemia (Hb<7g/dL)
• Severe neutropenia
• Renal insufficiency or RRT (Renal Replacement Therapy)
• Noradrenaline >0.5 mcg/kg/min
• Pregnancy
• Extracorporeal circulation (ECCO2R, ECMO)
• Life expectancy <24 hours as clinically judged
• Lack of consent