title: Gastrointestinal bleeding diagnosed by red blood cell scintigraphy in a patient with aortic stenosis: a case of Heyde syndrome.
abstract: The authors report a case of small bowel bleeding diagnosed by Tc-99m-labeled red blood cell (RBC) scintigraphy during the postoperative period after aortic valve replacement. There is a relationship between aortic valve stenosis and gastrointestinal bleeding in elderly patients, called Heyde syndrome. The described patient had chronic anemia that worsened after surgery. RBC scintigraphy localized the source of bleeding from jejunal angiodysplasia confirmed by mesenteric angiography. This case illustrates the diagnostic information provided by RBC scintigraphy in this syndrome.
authors.affiliation: Hospital Pró-Cardíaco, Nuclear Medicine Service; and Procep, Rio de Janeiro, Brazil. patricialavatori@terra.com.br
authors.forename: Patrícia L
authors.initials: PL
authors.lastname: Corrêa
authors.forename: Renata C M
authors.initials: RC
authors.lastname: Felix
authors.forename: Jader C
authors.initials: JC
authors.lastname: Azevedo
authors.forename: Paulo R D
authors.initials: PR
authors.lastname: Silva
authors.forename: Amarino C
authors.initials: AC
authors.lastname: Oliveira
authors.forename: Denise
authors.initials: D
authors.lastname: Cortes
authors.forename: Hans F R
authors.initials: HF
authors.lastname: Dohmann
authors.forename: Cláudio T
authors.initials: CT
authors.lastname: Mesquita
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001024:Aortic Valve Stenosis / Q000097:blood* / Q000000981:diagnostic imaging* / Q000601:surgery; D004912:Erythrocytes / Q000000981:diagnostic imaging*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000097:blood* / Q000000981:diagnostic imaging*; D006350:Heart Valve Prosthesis; D006801:Humans; D013577:Syndrome; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods*