why doesn't viagra work all the time levitra costco
Viii. Prognosis. The prognosis is difficult to establish in part due to the difficulty in establishing a clinical diagnosis for this condition. Pulmonary hemorrhage was thought to be uniformly fatal before mechanical ventilation, although this was based on pathologic diagnosis and, therefore, excluded infants with milder hemorrhages who survived. A small retrospective case study of very low birth weight infants with pulmonary hemorrhage suggests that although mortality remains high, the occurrence of pulmonary hemorrhage does not significantly increase the risk of later pulmonary or neurodevelopmental disabilities among survivors. Pulmonary air leak mohan pammi i. Background a. Risk factors. The primary risk factors for air leak are mechanical ventilation and lung disorders. Risk factors common in premature infants include respiratory distress syndrome (rds), sepsis, and pneumonia.