关键词: 环咽肌功能障碍, 超声引导, 肉毒杆菌毒素

Abstract: Cricopharyngeal dysfunction is a common disease which can lead to dysphagia， for pharyngeal muscles are not completely relaxed. There are numerous etiologies including the general categories of neuromuscular， iatrogenic， inflammatory， neoplastic， and idiopathic disease. Current options for treatment include cricopharyngeal myotomy， esophageal dilatation， and botulinum toxin injection. Minimally invasive treatment gradually replaces traditional surgical treatment with its advantages of safety， convenience， minimally invasive and cosmetically appealing appearance. Among them， ultrasound-guided botulinum toxin injection therapy has attracted much attention as a hot treatment in recent years， and has become the first choice for clinical treatment of pharyngeal muscle dysfunction. This article compares the botulinum toxin injection under ultrasound guidance with other treatments of pharyngeal muscle dysfunction.

Key words: ultrasound-guided, botulinum toxin, cricopharyngeal dysfunction