1 | Introduction
Many potential fascial spaces with loose tissue structure are continuous with each other in maxillofacial and neck, which lead to infection easy to spread(1). Deep neck space infections (DNSI) refer to the infections of deep neck space and fascia plane, which can induce cellulitis and even the formation of abscess. It is a common emergency in department of otorhinolaryngology and head and neck surgery. If not given effective treatment in time, it is easy to cause multi-space fusion infection because of its rapid development. It can induce severe complications such as dyspnea, carotid sheath infection, laryngeal edema, mediastinitis, mediastinal abscess and intracranial infection(2,3). How to distinguish the severity of abscess, the indications and timing of surgery, how to ensure airway patency, nutritional support and post-treatment after sepsis incision and drainage have become the main factors to successfully treat DNSI.