Sutherland-Haan Syndrome (Sutherland-Haan X-Linked Mental
Retardation Syndrome; X-Linked Mental Retardation with Spastic Diplegia):
Extremely rare form of X-linked severe mental retardation. Features include
short stature, spastic diplegia, significant congenital heart defects, and
craniofacial abnormalities (microcephaly, cleft palate or high-arched
palate, abnormal ears, bulbous nose, broad nasal bridge, malar hypoplasia,
micrognathia, and a small mouth). No reports exist about anesthesia in these
patients; however, difficult airway management seems likely.