控制疼痛和出血是顺利进行鼻内鼻窦手术的主要条件。为此,作者介绍采用筛神经及筛动脉阻滞技术,在鼻内鼻窦手术中起到有效的局部麻醉和减少出血的个人经验。筛前和筛后神经都是鼻睫神经的分枝,而后者是三叉神经的第一个分枝。筛前神经单独通过筛前孔分布 Control of pain and bleeding is the main condition for successful intranasal sinus surgery. To this end, the authors describe the use of screen nerve and screen artery block technique, intranasal sinus surgery effective local anesthesia and reduce bleeding experience. Both the pre-sieve and post-sieve nerves are branches of the nasociliary nerve, while the latter is the first branch of the trigeminal nerve. Anterior ethmoid nerve through the screen before the hole distribution