bronchopulmonary dysplasia/hypoxia

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Sleep apnea and hypoxemia in recently weaned premature infants with and without bronchopulmonary dysplasia.

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Infants with bronchopulmonary dysplasia (BPD) experience significant hypoxemia. Apnea indices and oxygen saturation levels of ten infants with BPD were compared to ten healthy premature infants who were evaluated to rule out apnea or bradycardia prior to discharge from the hospital. Infants with BPD

The 50/10 Oxygen-Induced Retinopathy Model Serves as a Hyperoxia and Hypoxia Model of Bronchopulmonary Dysplasia.

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Animal models of bronchopulmonary dysplasia (BPD) are mainly created by hyperoxia exposure. However, these models do not fully recapitulate BPD pathophysiology as observed in clinical practice. To find a better BPD model, we established a rat 50/10 oxygen-induced retinopathy (OIR) model and analyzed

Absence of ventilatory responses to alternating breaths of mild hypoxia and air in infants who have had bronchopulmonary dysplasia: implications for the risk of sudden infant death.

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Infants who have had bronchopulmonary dysplasia (BPD) are at an increased risk of sudden infant death syndrome. Because failure of the cardiorespiratory response to hypoxia is suggested to play a key role in sudden infant death syndrome, we tested the hypothesis that infants who have had BPD have a

The role of chronic hypoxia in the development of neurocognitive abnormalities in preterm infants with bronchopulmonary dysplasia.

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Bronchopulmonary dysplasia is the most common pulmonary morbidity in preterm infants and is associated with chronic hypoxia. Animal studies have demonstrated structural, neurochemical and functional alterations due to chronic hypoxia in the developing brain. Long-term impairments in visual-motor,

Sildenafil alleviates bronchopulmonary dysplasia in neonatal rats by activating the hypoxia-inducible factor signaling pathway.

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Bronchopulmonary dysplasia (BPD) is a major cause of morbidity in premature infants receiving oxygen therapy. Currently, sildenafil is being examined clinically to improve pulmonary function in patients with BPD. Based on the pharmacological action of sildenafil, the elevation of cyclic guanosine

Clinically unsuspected hypoxia during sleep and feeding in infants with bronchopulmonary dysplasia.

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Infants with bronchopulmonary dysplasia have a high incidence of sudden, unexplained death in the postneonatal period; yet the cause of these deaths is unknown. It was hypothesized that infants with bronchopulmonary dysplasia, thought to be well oxygenated based on awake PaO2 values, would have

Deferoxamine Improves Alveolar and Pulmonary Vascular Development by Upregulating Hypoxia-inducible Factor-1α in a Rat Model of Bronchopulmonary Dysplasia.

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Fetal lung development normally occurs in a hypoxic environment. Hypoxia-inducible factor (HIF)-1α is robustly induced under hypoxia and transactivates many genes that are essential for fetal development. Most preterm infants are prematurely exposed to hyperoxia, which can halt hypoxia-driven lung

Neonatal intermittent hypoxemia events are associated with diagnosis of bronchopulmonary dysplasia at 36 weeks postmenstrual age.

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Bronchopulmonary dysplasia (BPD) is a chronic lung disease and major pulmonary complication after premature birth. We have previously shown that increased intermittent hypoxemia (IH) events have been correlated to adverse outcomes and mortality in extremely premature infants. We

Eliminating sleep-associated hypoxemia improves growth in infants with bronchopulmonary dysplasia.

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OBJECTIVE Infants with bronchopulmonary dysplasia (BPD) have been previously reported to have a decrease in growth velocity after stopping supplemental oxygen (SO). SO was stopped after a short-term recording (20-30 minutes) of pulse oxygen saturation (Sao2) of 92% or greater in room air. Other

Bronchopulmonary dysplasia in a double-hit mouse model induced by intrauterine hypoxia and postnatal hyperoxia: closer to clinical features?

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Despite increased survival of very preterm newborns, bronchopulmonary dysplasia (BPD) remains a major threat, as it affects long-term pulmonary function and neurodevelopmental outcome. Recent research focused on mechanisms of lung repair. Animal models of BPD in term rodents use postnatal hyperoxia

Intussusceptive-like angiogenesis in human fetal lung xenografts: Link with bronchopulmonary dysplasia-associated microvascular dysangiogenesis?

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BACKGROUND Human fetal lung xenografts display an unusual pattern of non-sprouting, plexus-forming angiogenesis that is reminiscent of the dysmorphic angioarchitecture described in bronchopulmonary dysplasia (BPD). The aim of this study was to determine the clinicopathological correlates, growth

Fitness to fly testing in term and ex-preterm babies without bronchopulmonary dysplasia.

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BACKGROUND During air flight, cabin pressurisation produces an effective fraction of inspired oxygen (FiO(2)) of 0.15. This can cause hypoxia in predisposed individuals, including infants with bronchopulmonary dysplasia (BPD), but the effect on ex-preterm babies without BPD was uncertain. The

[Evolution of the result of respiratory function studies in children with bronchopulmonary dysplasia].

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BACKGROUND Reports of short- and medium-term evolution of Lung Function Tests (LFT) in infants with bronchopulmonary dysplasia (BPD) are still scarce. METHODS The results of the first (before 3 months of corrected age) and the second (between 3 and 9 months of corrected age) LFT in 22 premature

[Comparison of oxygen saturation among newborns with bronchopulmonary dysplasia during and after feeding].

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BACKGROUND Bronchopulmonary dysplasia (BPD) is associated with frequent events of hypoxemia specially during feeding. OBJECTIVE Determine peripheral oxygen saturation (SpO2) among infants with BPD before, during and after feeding. METHODS Patients with diagnosis of BPD were prospectively studied

Pulmonary function in technology-dependent children 2 years and older with bronchopulmonary dysplasia.

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Somatic and pulmonary growth coincide with resolution of hypoxemia by 2 years of age in most children with bronchopulmonary dysplasia (BPD). However, a distinct subgroup of children with BPD continue to require mechanical ventilation and/or supplemental oxygen beyond 2 years of age. This study

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