Thierry M Sottiaux

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To determine if, compared with pressure support (PS), neurally adjusted ventilatory assist (NAVA) reduces trigger delay, inspiratory time in excess, and the number of patient–ventilator asynchronies in intubated patients. Prospective interventional study in spontaneously breathing patients intubated for acute respiratory failure. Three consecutive periods(More)
Objective. To compare the respiratory muscle workload associated with pressure support ventilation (PSV) and proportional assist ventilation (PAV) in intubated and spontaneously breathing patients without COPD. Design and setting. Prospective study, intensive care unit university hospital. Interventions. Twenty intubated patients, during early weaning, PSV(More)
Conventional mechanical ventilators rely on pneumatic pressure and flow sensors and controllers to detect breaths. New modes of mechanical ventilation have been developed to better match the assistance delivered by the ventilator to the patient's needs. Among these modes, neurally adjusted ventilatory assist (NAVA) delivers a pressure that is directly(More)
BACKGROUND Morbid obesity results in marked respiratory pathophysiologic changes that may lead to impaired intraoperative gas exchange. The decelerating inspiratory flow and constant inspiratory airway pressure resulting from pressure-controlled ventilation (PCV) may be more adapted to these changes and improve gas exchanges compared with volume-controlled(More)
STUDY OBJECTIVE Upper abdominal surgery results in a postoperative restrictive pulmonary syndrome. Bi-level positive airway pressure (BiPAP System; Respironics Inc; Murrysville, Pa), which combines pressure support ventilation and positive end-expiratory pressure via a nasal mask, could allow alveolar recruitment during inspiration and prevent expiratory(More)
To determine if, compared to pressure support (PS), neurally adjusted ventilatory assist (NAVA) reduces patient–ventilator asynchrony in intensive care patients undergoing noninvasive ventilation with an oronasal face mask. In this prospective interventional study we compared patient–ventilator synchrony between PS (with ventilator settings determined by(More)
BACKGROUND Volume-controlled ventilation has been suggested to optimize lung deposition during nebulization although promoting spontaneous ventilation is targeted to avoid ventilator-induced diaphragmatic dysfunction. Comparing topographic aerosol lung deposition during volume-controlled ventilation and spontaneous ventilation in pressure support has never(More)
2 Schwartz DA, Fuortes U, Calvin JR, Burmeister LF, Schmidt LE, Leistikow BN, et al. Asbestos-induced pleural fibrosis and impaired lung function. Am Rev Respir Dis 1990; 141:321-26 3 Rosenstock L, Barnhart S, Heyer NJ, Pierson DJ, Hudson LD. The relation among pulmonary function, chest roentgenographic abnormalities, and smoking status in an(More)
This study compared performance of three heat and moisture exchangers (HME) during short-term postoperative mechanical ventilation. Temperature and absolute humidity (AH) were measured at various points of the ventilatory circuit. There was no statistical difference between the groups, regarding ambient and body To, body weight, fraction of inspired oxygen,(More)