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Recruitment manoeuvres, consisting of sustained inflations at high airway pressures, have been advocated as an adjunct to mechanical ventilation in lung protective ventilation strategies to prevent the collapse of the lung.
This study aims to determine the safety and efficacy of a recruitment manoeuvre, by considering its impact on gas exchange, hemodynamics and on the release of systemic inflammatory mediators.
This prospective study will analyse the effects of a single recruitment manoeuvre in critically ill patients. Subjects will be mechanically ventilated patients needing alveolar RMs. After a period of stable lung protective approach ventilation, they will receive the "40/30" RM; lung mechanics, gas exchange, hemodynamics and plasmatic concentration of inflammatory mediators will be obtained before and after the RM. An ultrasound score, established from the lung aeration status of upper and lower parts of anterior and lateral chest wall, will also be calculated before and after the manoeuvre.In selected patients cytokine release in the bronchoalveolar lavage will be measured as well.
Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
40/30 recruitment manoeuvre, continuous positive airway pressure (CPAP)
U.O. Anestesia e Rianimazione IV, Azienda Ospedaliero Universitaria Pisana
Azienda Ospedaliero, Universitaria Pisana
Published on BioPortfolio: 2014-07-24T14:09:58-0400
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A technique of respiratory therapy, in either spontaneously breathing or mechanically ventilated patients, in which airway pressure is maintained above atmospheric pressure throughout the respiratory cycle by pressurization of the ventilatory circuit. (On-Line Medical Dictionary [Internet]. Newcastle upon Tyne(UK): The University Dept. of Medical Oncology: The CancerWEB Project; c1997-2003 [cited 2003 Apr 17]. Available from: http://cancerweb.ncl.ac.uk/omd/)
Application of positive pressure to the inspiratory phase when the patient has an artificial airway in place and is connected to a ventilator.
Non-therapeutic positive end-expiratory pressure occurring frequently in patients with severe airway obstruction. It can appear with or without the administration of external positive end-expiratory pressure (POSITIVE-PRESSURE RESPIRATION). It presents an important load on the inspiratory muscles which are operating at a mechanical disadvantage due to hyperinflation. Auto-PEEP may cause profound hypotension that should be treated by intravascular volume expansion, increasing the time for expiration, and/or changing from assist mode to intermittent mandatory ventilation mode. (From Harrison's Principles of Internal Medicine, 12th ed, p1127)
A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).
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