“Z”成形术；后天性前鼻孔狭窄；手术治疗。
随其发育，仔鱼前鼻孔隆起于外表面，发育为管状延伸物而与外界相通。
With the development of the fish, the anterior naris of the fry rose above the external surface and developed into a tubular extension, which opened to the outside.
其中A组30例患者在取出鼻腔填塞物后于前鼻孔放置棉球以减少鼻腔通气；
Another 30 patients who did not receive a cotton ball placed in the anterior nostrils after removing the nasal stents in the same period were put in group B.
目的：采用前鼻孔放置棉球的方法减少鼻腔通气，观察鼻内镜术后创面愈合的情况。
Objective: to study the effects of reducing nasal airflow by placing a cotton ball in the anterior nostrils on wound healing after endoscopic sinus surgery.
方法：鼻内窥镜下以传统的前鼻孔填塞法及电热烧灼法、微波凝固法治疗动脉性鼻出血。
Methods:Using electro-cauterization, microwave-cauterization and traditional anterior nose packing in treating serious superficial arterial epistaxis under endoscopy.
实验组小鼠出生后立即在显微镜下用9 - 0线缝合左侧前鼻孔，造成左侧前鼻孔闭锁。
Experimental mice immediately after birth with a 9-0 suture under the microscope before the left nostril, causing the left front nostril atresia.
蝶窦前壁位于后鼻孔上缘上，鼻中隔和中鼻甲后缘之间。
The anterior walls of sphenoid sinus located on the superior border of choanae, between nasal septum and middle nasal turbinate.
结果20例患者中，作单侧鼻腔填塞的7例，作双侧鼻腔填塞的有11例，作单侧前、后鼻孔填塞的有2例；
Results 7 of 20 cases received unilateral nasal cavity packing. 11 cases received bilateral nasal cavity packing and 2 cases received unilateral anterior-posterior nasal cavity packing.
结果20例患者中，作单侧鼻腔填塞的7例，作双侧鼻腔填塞的有11例，作单侧前、后鼻孔填塞的有2例；
Results 7 of 20 cases received unilateral nasal cavity packing. 11 cases received bilateral nasal cavity packing and 2 cases received unilateral anterior-posterior nasal cavity packing.
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