title: Alternating Wolff-Parkinson-White syndrome associated with attack of angina.
abstract: In a patient with Wolff-Parkinson-White syndrome and an inferior-posterior bypass tract, transient restoration of normal conduction occurred during an attack of angina. The ECG pattern of inferior posterior ischemia was present when the conduction was normal. Thallium scintigraphy showed a reversible posterolateral perfusion defect. The possible mechanisms for production of intermittent preexcitation are discussed.
authors.affiliation: Institute of Second Medical Clinic, University of Catania, V. Emanuele Hospital, Italy.
authors.forename: R A
authors.initials: RA
authors.lastname: Mangiafico
authors.forename: A
authors.initials: A
authors.lastname: Petralito
authors.forename: D R
authors.initials: DR
authors.lastname: Grimaldi
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D006321:Heart / Q000000981:diagnostic imaging; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D011877:Radionuclide Imaging; D013794:Thallium Radioisotopes; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis* / Q000503:physiopathology
chemical_list: D013794:Thallium Radioisotopes