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支气管动脉栓塞治疗大略血已较广泛地应用于临床并取得了较好的疗效。但对慢性反复发作性大咯血的患者，由于病变广泛，潜在侧支循环存在及B－P分流的形成，单纯支气管动脉主干栓塞难免复发’‘’。我们针对其病变广泛且侧支循环多的特点，开展了支气管动脉末梢及主干分级栓塞
Bronchial artery embolization has been more widely used in clinical blood and achieved good results. However, patients with chronic recurrent major hemoptysis, due to extensive lesions, the potential existence of collateral circulation and the formation of B-P shunt, bronchial artery embolization alone is inevitable recurrence. We focus on its wide range of lesions and collateral circulation characteristics of bronchial artery endings and trunk grading embolization