High Frequency Percussive Ventilation in Hypersecretive Tracheostomized Patients

Pneumonia Clinical Trial

Official title:

Physiological Effects on Lung Aeration of High Frequency Percussive Ventilation in Hypersecretive Tracheostomized Patients: a Physiological Observational Study

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT05200507
• Other study ID #: Percussionaire-tracheo
• Status: Not yet recruiting
• Start date: February 1, 2022
• Est. completion date: December 31, 2022

Study information

• Verified date: January 2022
• Source: University Magna Graecia
• Contact: Federico Longhini, MD
• Phone: +393475395967
• Email: longhini.federico[@]gmail.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The incidence of pulmonary complications such as pulmonary atelectasis, pneumonia (including ventilator-associated pneumonia), and acute respiratory failure is high in critical care patients. The incidence of ventilator-associated pneumonia can be as high as 27% amongst mechanically ventilated patients. Studies have shown that 16% of critically ill patients have been reported to develop acute respiratory failure, which is associated with prolonged intensive care unit stay, resulting in significantly higher mortality than non-respiratory failure patients. Increased morbidity and mortality contribute to the burden on the health care system and lead to poor health-related outcomes. Multimodal physiotherapy plays a role in the management of these critically ill patients. High frequency percussive ventilation (HFPV) is used in patients with underlying pulmonary atelectasis, excessive airway secretions, and respiratory failure. HFPV is a non-continuous form of high-frequency ventilation delivered by a pneumatic device that provides small bursts of sub-physiological tidal breaths at a frequency of 60-600 cycles/minute superimposed on a patient's breathing cycle. The high-frequency breaths create shear forces causing dislodgement of the airway secretions. Furthermore, the HFPV breath cycle has an asymmetrical flow pattern characterized by larger expiratory flow rates, which may propel the airway secretions towards the central airway. In addition, the applied positive pressure recruits the lung units, resulting in a more homogeneous distribution of ventilation and improved gas exchange. In acute care and critical care settings, HFPV intervention is used in a range of patients, from spontaneously breathing patients to those receiving invasive mechanical ventilation where HFPV breaths can be superimposed on a patient's breathing cycle or superimposed on breaths delivered by a mechanical ventilator. The most common indications for HFPV use are reported as removal of excessive bronchial secretions, improving gas exchange, and recruitment of atelectatic lung segments. This study aims to assess the lung physiological response to HFPV in terms of aeration and ventilation distribution.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 15
• Est. completion date: December 31, 2022
• Est. primary completion date: December 31, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• more than 48 hours of invasive mechanical ventilation
• presence of tracheostomy
• need for two or more broncoaspirations per hour in the previous 8 hours

Exclusion Criteria:

• life threatening cardiac arrythmia
• pneumothorax
• acute spinal injury
• chest trauma
• brain injury in the previous 15 days
• hemodynamic instability
• chest or abdominal surgery in the previous 7 days
• pregnancy
• enrollment in other study protocols

Related Conditions & MeSH terms

• Acute Respiratory Failure
• Pneumonia
• Respiratory Insufficiency

Intervention

Device:
• High Frequency Percussive Ventilation
High Frequency Percussive Ventilation will be applied for 10 minutes at an oscillation frequency of 10 Hz, superimposed to the ventilatory assistance

Locations

Country	Name	City	State
Italy	AOU Mater Domini	Catanzaro

Sponsors (1)

Lead Sponsor	Collaborator
University Magna Graecia

Country where clinical trial is conducted

Italy, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Lung aeration	To evaluate if the application of High Frequency Percussive Ventilation (HFPV) will modify the lung aeration (as assessed by the end-expiratory lung impedance through EIT), as compared to baseline before the treatment	Soon after the end of HFPV application
Primary	Lung aeration	To evaluate if the application of High Frequency Percussive Ventilation (HFPV) will modify the lung aeration (as assessed by the end-expiratory lung impedance through EIT), as compared to baseline before the treatment	One hour after the end of HFPV application
Primary	Lung aeration	To evaluate if the application of High Frequency Percussive Ventilation (HFPV) will modify the lung aeration (as assessed by the end-expiratory lung impedance through EIT), as compared to baseline before the treatment	Three hours after the end of HFPV application
Secondary	Arterial Blood Gases	To evaluate if the application of High Frequency Percussive Ventilation (HFPV) will modify Arterial Blood Gases, as compared to baseline before the treatment	Soon after the end of HFPV application
Secondary	Arterial Blood Gases	To evaluate if the application of High Frequency Percussive Ventilation (HFPV) will modify Arterial Blood Gases, as compared to baseline before the treatment	One hour after the end of HFPV application
Secondary	Arterial Blood Gases	To evaluate if the application of High Frequency Percussive Ventilation (HFPV) will modify Arterial Blood Gases, as compared to baseline before the treatment	Three hours after the end of HFPV application