起源于围生期的气管支气管出血 Tracheobronchial hemorrhage originating in the perinatal period
目的研究肺表面活性蛋白A（SP-A）在肺出血新生儿支气管肺泡灌洗液（BALF）中的变化及其与预后的关系。
Objective To study the change of surfactant protein A(SP-A)in bronchoalveolar lavage fluid(BALF)and the relationship with prognosis in newborns with pulmonary hemorrhage.
然而由于不同的发病率，支气管源性肿瘤是最常导致出血性脑转移瘤。
Due to their increased prevalence, however, bronchogenic lesions are the most common source of hemorrhagic lesions.
肺梗死是出血性梗死，由于肺是双重血液供应的，支气管动脉可继续供血，但不能阻止梗死的发生。
A pulmonary infarct is hemorrhagic because of the dual blood supply from the non-occluded bronchial arteries which continue to supply blood, but do not prevent the infarction.
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