Abnormalities in the inductive interaction between bronchial epithelium and mesenchyme appear to result in the major abnormalities.
The acquired form may be idiopathic, but recognized associations include tumour (thymoma, sometimes also in association with myasthenia gravis; bronchial carcinoma) and acquired demyelinating polyneuropathies.
The disease symptoms can be relatively mild, but in some cases severe complications, including bronchial pneumonia and respiratory failure, can occur.
The bronchial tree also showed an isomeric arrangement.
Anatomic factors causing respiratory distress in acyanotic congenital cardiac disease: special reference to bronchial obstruction.
Flow of blood through the bronchial circulation presents a considerable problem in the calculation of pulmonary blood flow in patients with complete transposition.
Conceivably, during normothermic bypass, the bronchial circulation may be inadequate to support the metabolism of the lungs, resulting in an ischemic injury.
The fourth session from the same viewpoint is devoted to specific disease-cardiovascular disease, hypertension, myocardial infarction, renal function, bronchial asthma and gastro-intestinal function.