title: Possible difficult laryngoscopy caused by masticatory muscle tendon-aponeurosis hyperplasia: we anesthesiologists should be aware of this disease.
abstract: 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.
authors: Department of Anesthesiology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara 634-8522, Japan. seninoue@naramed-u.ac.jp
authors: Satoki
authors: S
authors: Inoue
authors: Ikumi
authors: I
authors: Yamamoto
authors: Shinichi
authors: S
authors: Ikeda
authors: Masahiko
authors: M
authors: Kawaguchi
authors: Tetsuji
authors: T
authors: Kawakami
authors: Tadaaki
authors: T
authors: Kirita
authors: Hitoshi
authors: H
authors: Furuya
mesh_terms: D000368:Aged; D000758:Anesthesia; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D007442:Intubation, Intratracheal; D007828:Laryngoscopy; D008334:Mandible / Q000002:abnormalities; D008410:Masticatory Muscles / Q000473:pathology*; D009055:Mouth / Q000033:anatomy & histology; D013710:Tendons / Q000473:pathology*