This is the peer reviewed version of the following article: e Souza, M. Â. N., Nobre, R. A., Bezerra, P. C., dos Santos, A. A. and Sifrim, D. (2016), Anatomical and functional deficiencies of the crural diaphragm in patients with esophagitis. Neurogastroenterol. Motil.. doi:10.1111/nmo.12899, which has been published in final form at http://dx.doi.org/10.1111/nmo.12899. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.