Asthma will develop emphysema?

Children or adolescents with allergic asthma generally unpopular with chronic bronchitis, and most have longer attack intermittent, or each attack is not a long time, so in the short term will not develop emphysema. But if lower resistance, often irritating substances or repeated contact with the upper respiratory tract viral infection, can be associated with chronic bronchitis, persistent refractory disease. So simple chronic bronchitis asthma not as easy to develop into pulmonary emphysema or heart disease. However, very frequent seizures, or status with asthma, particularly with chronic bronchitis, emphysema and thus occurred develop into cor pulmonale on the possibility of a larger. Bronchial asthma due to cramps, mucosal edema and increased secretion, airway obstruction, when the strong contraction inspiratory diaphragm, rib muscle on the question, thorax expansion, chest negative pressure increased alveolar expansion, the expansion of the lungs, the whole thorax as emphysema state. In asthma, there may not Qi tumor clinical manifestation, but if regular asthma attacks, repeated inflammation of bronchial mucosal edema, respiratory tract, the narrow and will be long-lasting. Inspiratory bronchiectasis, able to enter alveolar gas, breath when bronchial narrowing collapse of the lung is not easy drained residues within the alveolar gas increased flexibility diminishes, thus creating the so-called obstructive pulmonary emphysema. In chronic obstructive pulmonary emphysema on the basis of, as her illness became more serious, alveolar pressure rising, oppression around the alveolar capillary wall, which luminal stenosis or semi-Cypriots, which alveolar rupture, pulmonary capillary bed greatly feed pulmonary vascular resistance increases in pulmonary hypertension. Chronic obstructive ventilatory dysfunction of transmission lines and the lack of oxygen, to the pulmonary artery spasm, thereby increasing the pulmonary vascular resistance and pulmonary hypertension, forming a vicious circle, and ultimately to the development of right ventricular hypertrophy and dilated right heart failure characterized by cor pulmonale.