每年到耳鼻喉科就诊的鼻出血患者中有一小部分是应用华法林（等丙酮香豆素）做抗凝治疗者。这类患者住院时间长、处置饺复杂。1990年4月、199三年10月对20例应用华法林的鼻出血患者与年龄、性别相应的未用华法林的鼻出血患者做瞻前对比研究。前组在鼻出血期间暂停使用华法林。 A small percentage of nosebleeds patients who come to the otolaryngology department each year are treated with warfarin (such as acetone coumarin) for anticoagulant therapy. Such patients in hospital for a long time, handling dumplings complex. April 1990, October 1993 Three prospective comparative studies were performed on 20 patients with epistaxis who received warfarin and those who did not receive warfarin, age and sex. The former group discontinued warfarin during epistaxis.