Study of Therapeutic Outcomes and Practices in Freeman-Sheldon Syndrome

This study was initiated by the research assistant (Mikaela I. Poling) and assisted by another research assistant (J. Andrés Morales), as part of their academic project on these syndromes, under the supervision of the Principal Investigator (Robert L Chamberlain).

Classic FSS, SHS, DA1, and DA3 are poorly understood pathological entities that share some similar physical findings to FSS. Stevenson et al. (2006) provided the only study to date on FSS features and history. They did not, however, focus on therapeutic outcomes, and there was limited anecdotal outcome data in single and multiple case reports.

The objectives for STOP-FSS are as follows: to evaluate (1) physical findings, possible frequency clusters, and complications of physical findings amongst patients with FSS; (2) posttraumatic stress and depressive symptoms and associated therapeutic outcomes in patients with FSS, using single-disease specific (i.e., posttraumatic stress symptoms, chronic depression) measures; (3) document treatment types and outcomes; (4) evaluate quality of life in patients with FSS, using a general quality of life self-report measure and syndrome-specific semi-structured quality of life interview; (5) educational attainment and services used; (6) evaluate diagnostic accuracy of FSS and SHS, using the Stevenson criteria; and (7) evaluate possible differences with patients meeting the full Stevenson criteria and those fulfilling the craniofacial part of the Stevenson criteria, with or without additional malformations.

The following hypotheses are thus proposed. First, it is suggested that physical findings and frequency clusters will be similar to those previously reported, but complications of physical findings amongst patients with FSS, having received little attention in the literature, will be pronounced and result in nearly as significant of a disease burden for the patient as the primary physical findings themselves, e.g., intercostal myopathy eventually leading to right heart failure in some patients. Second, it is suggested that FSS is associated with higher rates of posttraumatic stress symptoms, depressive symptoms than is observed in the general population. Third, it is suggested that physiotherapy alone or with surgery is expected to be superior to surgery alone, especially for patients with FSS, in treating most problems, but surgery may have an important role, especially treating blepharophimosis and in combination with intensive pre- and post-operative physiotherapy in treating selective tendon lengthening in hands and feet. Fourth, it is suggested that FSS is associated with reduced quality of life than is observed in the general population. Fifth, it is suggested that when patients with FSS who do not have neurocognitive features receive the appropriate academic services, they frequently excel beyond family and peers, and it is also suggested that most patients with FSS do not receive educational services that are responsive to their unique needs and abilities, e.g., placement in 'special' classes or schools based on the patient's appearance or poorly conducted intelligence tests. Sixth, it is suggested, based on systematic review and meta-analysis preliminary results, that two-thirds of patients with a stated diagnosis of FSS will not meet the Stevenson criteria and be rediagnosed, mostly as DA1. Seventh, it is suggested, based on systematic review and meta-analysis preliminary results, that two-thirds of patients with stated diagnosis of FSS who do not meet the Stevenson criteria, one-third will be meet the craniofacial stipulates of the Stevenson criteria, with or without additional malformations, and share a natural history with those who met the full Stevenson criteria.