Resumo

GARCIA-ARANA, L. et al. Hydroelectrolytic disorders following orthognathic surgery. Rev Esp Cirug Oral y Maxilofac [online]. 2005, vol.27, n.1, pp.29-34. ISSN 2173-9161.

Introduction. The aim of this article is to analize the early polyuria cases that we found among our patients that have undergone a orthognatic procedure. Materials and methods. We reviewed data from 172 patients that have undergone an orthognatic surgycal procedures between 1997 and 2002. We collected data during the intraoperatory period, and the first 24 postoperatory hours. Results. 55% of the patients that staid for more than 24 hours in Reanimation showed early autolimited polyuria. All of them were successfully treated with a proper hidroelectrolitic treatment. One needed intranasal desmopresin. However hypopotasemy in one case and hyponatremy in another were resolved with hidroelectrolitic treatment. Disscusion and conclusions. Almost 50% of patients surgically treated of dentofacial deformities present polyuria in the early postoperatory period. There are three main etiologic hypotesis: hydric intoxication during surgery, inhibition of ADH liberation due to facial osteotomies, and salt wasting syndrome. The most probable in our serie is an hydric intoxication during surgery.

Palavras-chave : Orthognatic surgery; ADH; SALT wasting síndrome; Hydroelectrolitic balance.

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