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Infant respiratory distress syndrome (IRDS), also known as surfactant deficiency disorder (SDD), [2] and previously called hyaline membrane disease (HMD), is a syndrome in premature infants caused by developmental insufficiency of pulmonary surfactant production and structural immaturity in the lungs.
Causes may include sepsis, pancreatitis, trauma, pneumonia, and aspiration. [1] The underlying mechanism involves diffuse injury to cells which form the barrier of the microscopic air sacs of the lungs , surfactant dysfunction, activation of the immune system , and dysfunction of the body's regulation of blood clotting . [ 5 ]
The surfactant–albumin ratio is a test for assessing fetal lung maturity. [1] The test, though no longer commercially available, used an automatic analyzer to measure the polarized fluorescent light emitted from a sample of amniotic fluid that had been challenged with a fluorescent probe that interacted competitively with both lecithin (phosphatidylcholine) and albumin in such a way that ...
Vagus nerve stimulation therapy improved the symptoms of treatment-resistant depression for nearly 500 participants in a major clinical trial.
The cause is not fully understood, but evidence suggests that raised oxygen levels at the lens may be caused by deterioration of the vitreous humour due to age, and this causes degradation of lens crystallins by cross-linking, forming aggregates capable of scattering light. This may be an end-state development of the more commonly observed ...
Upper airway resistance syndrome (UARS) is a sleep disorder characterized by the narrowing of the airway that can cause disruptions to sleep. [1] [2] The symptoms include unrefreshing sleep, fatigue, sleepiness, chronic insomnia, and difficulty concentrating. UARS can be diagnosed by polysomnograms capable of detecting Respiratory Effort ...
Public debt $ and %GDP (2010) for selected European countries Government debt of Eurozone, Germany and crisis countries compared to Eurozone GDP. The European debt crisis, often also referred to as the eurozone crisis or the European sovereign debt crisis, was a multi-year debt crisis that took place in the European Union (EU) from 2009 until the mid to late 2010s that made it difficult or ...
For premium support please call: 800-290-4726 more ways to reach us. Sign in. ... who ruled that Neely’s death was a homicide caused by Penny’s chokehold, pointed out for jurors the exact ...