In acute lung injury (ALI), pressure support ventilation (PSV) may improve oxygenation compared with pressure-controlled ventilation (PCV), and benefit from random variation of pressure support (noisy PSV). We investigated the effects of PCV, PSV, and noisy PSV on gas exchange as well as the distribution of lung aeration and perfusion in 12 pigs with ALI induced by saline lung lavage in supine ...

OBJECTIVE To evaluate the possible changes in tidal volume, minute volume and respiratory rate caused by the use of a heat and moisture exchanger in patients receiving pressure support mechanical ventilation and to quantify the variation in pressure support required to compensate for the effect caused by the heat and moisture exchanger. METHODS Patients under invasive mechanical ventilation i...

Respiratory support is an essential part of care during clinical course of premature infants. Despite the wide-spread use of non-invasive modes of ventilation today the most vulnerable extremely premature infants are still likely to require invasive mechanical ventilation. Multiple studies have been published addressing advantages and disadvantages of various modes of ventilation in neonates. I...

Background: This study was targeted toward comparing volume-guaranteed (VG) ventilation with conventional pressure-controlled (PC) ventilation in preterm infants with respiratory distress syndrome (RDS) in terms of the facilitation of weaning and extubation and occurrence of complications, such as pneumothorax, intraventricular hemorrhage (IVH), retinopathy of prematur...

Bronchopulmonary dysplasia (BPD), also known as chronic lung disease (CLD), is the most common serious morbidity associated with premature birth, particularly among those infants who have respiratory distress syndrome (RDS) and receive mechanical ventilation after birth. BPD is characterized by lung inflammation and scarring, which are thought to be the effects of excessive (or inadequate) vent...

INTRODUCTION Echocardiographic, electrocardiographic and other cardiorespiratory variables can change during weaning from mechanical ventilation. OBJECTIVES To analyze changes in cardiac function, using Doppler echocardiogram, in critical patients during weaning from mechanical ventilation, using two different weaning methods: pressure support ventilation and T-tube; and comparing patient sub...

Patient triggered ventilation using oesophageal pressure changes was assessed in eight premature neonates. Respiratory activity was reliably recorded and positive pressure inflation occurred synchronously with inspiration. Peristalsis resulted in only minimal interference. During patient triggered ventilation, inflating volume and oxygenation increased significantly compared with periods of con...

objectives the aim of this study was to investigate the relation between respiratory muscle strength and the severity of chf, and the influence of respiratory muscle strength on abnormal ventilation during exercise in chf patients. conclusions respiratory muscle strength is related to the severity of chf, and associated with rapid and shallow ventilation or excessive ventilation during exercise...

BACKGROUND A high flow of air applied by large bore nasal cannulae has been suggested to improve symptoms of chronic respiratory insufficiency. In pediatric patients, nasal high-flow (nHF) ventilation was similarly effective compared to noninvasive ventilation with a face mask. OBJECTIVES The aim of this study was to describe changes in respiratory parameters. METHODS We measured pressure a...