title: [Pulmonary arteriovenous fistula and lateral decubitus anoxia].
abstract: The case of a female patient with Rendu-Osler-Weber disease associated with pulmonary arterio-venous fistula localized at the apical segment of the left inferior pulmonary lobe is described. A decrease in the oxygen arterial saturation (SaO2) at adopting the left lateral decubitus position (left-lateral-decubitodeoxia) was found, as well as an increase in the anatomical venoarterial short-circuit (Qs/Qt) in the same position. The resonsible factors of such changes in SaO2 and Qs/Qt related with the body position are analyzed, and the, exceptional in these patients, finding of alteration of pulmonary mechanics is commented.
mesh_terms: D000328:Adult; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging* / Q000503:physiopathology; D001784:Blood Gas Analysis; D005260:Female; D006801:Humans; D008168:Lung / Q000098:blood supply*; D011859:Radiography; D012129:Respiratory Function Tests; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000000981:diagnostic imaging*
vernacular_title: Fístula arteriovenosa pulmonar y decúbito-latero-deoxia.