Department of Anesthesiology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara 634-8522, Japan.
J Anesth. 2010 Dec;24(6):930-1. doi: 10.1007/s00540-010-1010-6. Epub 2010 Aug 19.
Masticatory muscle tendon-aponeurosis hyperplasia (MMTAH) is a new disease entity characterized by limited mouth opening due to contracture of the masticatory muscles resulting from hyperplasia of tendons and aponeuroses. The other clinical feature is that the face of the patient with this disease displays a square mandible configuration. Muscle relaxants provide no relief for the limited mouth-opening ability. Anesthesiologists need to suspect difficult airway when patients have limited mouth opening with square mandible configuration. MMTAH can therefore be a possible cause of difficult intubation.
咀嚼肌肌腱-腱膜过度增生症（MMTAH）是一种新的疾病实体，其特征为由于肌腱和腱膜的过度增生导致咀嚼肌挛缩，从而导致开口受限。另一个临床特征是患有这种疾病的患者的面部呈现方形下颌骨形态。肌肉松弛剂对开口受限能力没有缓解作用。当患者出现开口受限和方形下颌骨形态时，麻醉师需要怀疑存在困难气道。因此，MMTAH 可能是导致插管困难的一个原因。
