Ignite Creation Date:
2025-12-26 @ 3:58 PM
Ignite Modification Date:
2025-12-29 @ 6:40 AM
Study NCT ID:
NCT01191606
Status:
UNKNOWN
Last Update Posted:
2010-08-31
First Post:
2010-08-05
Is Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Pressure-controlled Versus Volume-controlled Ventilation During Protective One Lung Ventilation
Sponsor:
Seoul National University Bundang Hospital
Organization:
Study Overview
Official Title:
Pressure-controlled Versus Volume-controlled Ventilation During Protective One Lung Ventilation for Thoracic Surgery
Status:
UNKNOWN
Status Verified Date:
2010-05
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The aim of this study is to determine the effects of pressure controlled ventilation during protective one lung ventilation on blood gases, airway pressures and hemodynamic variables compared with volume controlled ventilation.
Detailed Description:
One-lung ventilation (OLV) during thoracic surgery, in particular, video-assisted thoracic surgery is a standard practice to facilitate surgical exposure, but arterial hypoxemia has been a serious complication during one lung ventilation. Furthermore, recent studies have shown that one lung ventilation with a conventional tidal volume can involve lung injury associated with alveolar overdistension and high airway pressure. Therefore, lung protective ventilation with a low tidal volume during one lung ventilation has been suggested, and a recent study showed that protective ventilation during lung cancer surgery was associated with improved postoperative respiratory outcomes such as reduced incidence of acute lung injury and atelectasis.
During protective one lung ventilation limiting airway pressure and using low tidal volume, it is important to provide uniform alveolar expansion and maintain adequate oxygenation. A previous study suggested that the decelerating inspiratory flow delivery used in pressure controlled ventilation improved ventilation/perfusion distribution and arterial oxygenation during one lung ventilation5. Moreover, according to a recent study during laparoscopic obesity surgery, pressure-controlled ventilation improved oxygenation compared with volume controlled ventilation, which was associated with higher instantaneous flow peaks and a better alveolar recruitment6. On the other hand, other studies showed that ventilatory mode during one lung ventilation did not affect arterial oxygenation. However, these studies were performed during mechanical ventilation using conventional tidal volume, and the effect of ventilatory mode during protective one lung ventilation on oxygenation has not been clearly determined yet.The aim of this study is to determine the effects of pressure controlled ventilation during protective one lung ventilation on blood gases, airway pressures and hemodynamic variables compared with volume controlled ventilation.
During protective one lung ventilation limiting airway pressure and using low tidal volume, it is important to provide uniform alveolar expansion and maintain adequate oxygenation. A previous study suggested that the decelerating inspiratory flow delivery used in pressure controlled ventilation improved ventilation/perfusion distribution and arterial oxygenation during one lung ventilation5. Moreover, according to a recent study during laparoscopic obesity surgery, pressure-controlled ventilation improved oxygenation compared with volume controlled ventilation, which was associated with higher instantaneous flow peaks and a better alveolar recruitment6. On the other hand, other studies showed that ventilatory mode during one lung ventilation did not affect arterial oxygenation. However, these studies were performed during mechanical ventilation using conventional tidal volume, and the effect of ventilatory mode during protective one lung ventilation on oxygenation has not been clearly determined yet.The aim of this study is to determine the effects of pressure controlled ventilation during protective one lung ventilation on blood gases, airway pressures and hemodynamic variables compared with volume controlled ventilation.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: