Pathophysiology Of Brochopulmonary Dysplasia Is Not Yet Completely Eradicated

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Pathophysiology The pathophysiology of brochopulmonary dysplasia is not yet completely comprehended. (Hadjiliadis, 2013) There are indeed a variety of virulent causes that dower to the pattern of growth in BPD. BDP starts off by injuring the smaller airways, which eventually results in a reduction of the functional vital capacity in the lungs. Due to the premature nature in the lungs in preterm and low birth weight infants, the lungs most often than not, are under developed, making them easily irritated and susceptible to lung injury within hours or days after birth. (Hadjiliadis, 2013) As the injury progresses, gas exchange become compromised causing a decrease in oxygenated blood to the lungs therefore triggering irritation and…show more content…
(Cole, 2010) The chest x-ray for these babies generally presents with a ground glass appearance, hyper expanded lung fields with densities and possibly pulmonary edema. Extended periods of use on the mechanical ventilator for preterm and under weight infants can lead to BDP due to decreasing lung compliance from poor perfusion extending from a suspected hypoxemic and hypercapneic state. (ALA, 2008) Even though these babies are on the ventilator, they will still present with shallow breathing, cyanosis, tachypnea, retractions, and scattered rales on the chest x-ray. Later in life, babies who overcome BDP can suffer from developmental problems, poor growth, and possibly pulmonary hypertension. Upon auscultation, there will be coarse rhonchi breath sounds with possible rales, paradoxical breathing and an increase in the rate the patient is breathing. The dynamic lung compliance is reduced hindmost because of the increasing damage that is taking place in the small airway. (ALA, 2008) Other tests that can be performed are: • Arterial blood gas o Checking for pH >7.25 o Paco2 between 35-45 o Pao2 between 50-70 o HCO3 22-26 • Pulmonary function test (to follow the progression of BPD) • Chest x-ray (heart and lungs) o Pneumothorax o Aeration o Infection o Inflammation •

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