View source for Revised Hammersmith Scale (RHS) for Spinal Muscular Atrophy

== Introduction ==
The Revised Hammersmith Scale (RHS) is a specifically designed outcome measure for people affected by [[Spinal Muscular Atrophy (SMA)]].<ref name=":0">[http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0172346 Ramsey] D, Scoto M, Mayhew A, Main M, Mazzone ES, Montes J, et al. (2017) Revised Hammersmith Scale for spinal muscular atrophy: A SMA specific clinical outcome assessment tool. PLoS ONE 12(2): e0172346. doi:10.1371/journal. pone.0172346</ref>  The Hammersmith Functional Motor Scale (HFMS), was the first outcome measure designed to capture physical abilities in patients with SMA type 2 and 3.<ref>Main M, Kairon H, Mercuri E, Muntoni F. The Hammersmith Functional Motor Scale for Children with Spinal Muscular Atrophy: a Scale to Test Ability and Monitor Progress in Children with Limited Ambulation. European Journal of Paediatric Neurology. 2003;7(4):155–9. pmid:12865054</ref> The Hammersmith Functional Motor Scale Expanded (HFMSE), is an expanded version of the HFMS and was published to be used for patients who were ambulant.<ref>O'Hagen JM, Glanzman AM, McDermott MP, Ryan PA, Flickinger J, Quigley J, et al. An expanded version of the Hammersmith Functional Motor Scale for SMA II and III patients. Neuromuscular disorders: NMD. 2007;17(9–10):693–7. Epub 2007/07/31. pmid:17658255</ref> In recent years specialist from all over the world who are working with patients with SMA collaborated together to develop a much better scale by using Rasch analysis. The new scale was called RHS and it provides a more sensitive description of SMA phenotype and progression of the disease.