NCT04935008

Evaluation of Intracranial Pressure During Mechanical Ventilation Recruitment Maneuver

Evaluation of Intracranial Pressure Change by Measuring Optic Nerve Sheath Diameter During Lung Recruitment Maneuver in Patients With Acute Respiratory Distress Syndrome: A Prospective Experimental Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 81 (actual)
• Sponsor: Ondokuz Mayıs University · Academic / Other
• Sex: All
• Age: 18 Years – 90 Years
• Healthy volunteers: Not accepted

Summary

Recruitment maneuver is used to reopen atelectasis alveoli. Positive airway pressure applied during the recruitment maneuver may increase intrathoracic pressure, resulting in hemodynamic instability, venous return disorders, and increased intracranial pressure. Our study will examine the effect of recruitment maneuver on intracranial pressure by evaluating Optic Nerve Sheath Diameter change.

Detailed description

The therapeutic goal of mechanical ventilation shifts from maintaining regular gas exchange to preventing ventilator-induced lung injury. Atelectasis aggravates lung injury by reducing the lung size available for tidal ventilation. By preventing atelectasis with Positive End Expiratory Pressure (PEEP) and recruitment maneuvers, the end-expiratory lung volume can be increased, and lung damage can be reduced. Although the recruitment maneuver improves oxygenation and reduces mortality, especially in patients with Acute Respiratory Distress Syndrome (ARDS), adverse side effects are sometimes observed. Most important of these are the risk of barotrauma after positive airway pressure applications, increased intrathoracic pressure and hemodynamic instability, and increased intracranial pressure risk after venous return disorder. Our study aimed to evaluate the effect of recruitment maneuver on intracranial pressure by measuring optic nerve diameter with ultrasound before and after its application in patients with ARDS with impaired oxygenation and followed up with mechanical ventilator support.

Conditions

• Effect of Recruitment Maneuver on Intracranial Pressure

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	The recruitment maneuver	In patients with ARDS, 30 cm H2O positive pressure support and 30 seconds recruitment maneuver will be applied. The effect of the recruitment maneuver on intracranial pressure will be investigated by measuring the optic nerve sheath diameter with the help of ultrasonography before and after the recruitment maneuver. Optic nerve diameter will be evaluated with a linear probe on the eyeball before and after the collection maneuver, taking a value of 3 mm from the eyeball.

Timeline

• Start date: 2021-07-01
• Primary completion: 2022-01-01
• Completion: 2022-02-16
• First posted: 2021-06-22
• Last updated: 2022-03-09

Locations

1 site across 1 country: Turkey (Türkiye)