title: Detection of restenosis after coronary angioplasty for single-vessel disease: how reliable are exercise electrocardiography and scintigraphy in asymptomatic patients?
abstract: The diagnostic value of exercise electrocardiography and thallium myocardial scintigraphy for the detection of restenosis was assessed in 111 patients undergoing control angiography 6 months after successful coronary angioplasty. All patients were free of symptoms at the time of the study. A diameter reduction of 70% or more at the site of angioplasty was considered restenosis. The sensitivity of exercise electrocardiography is low (64%). Exercise ECG and scintigraphy are highly specific (respectively 90% and 93%). The predictive value of a positive ECG or thallium scintigraphy is poor (respectively 53% and 63%). The value of a negative scintigraphic result is slightly better than the predictive value of a negative ECG (98% vs 95%; NS). A negative exercise scintigraphy almost excludes severe restenosis. These non-invasive tests seem suitable for the detection of asymptomatic restenosis.
authors.affiliation: Division of Cardiology, University of Louvain Medical School, University Hospital of Mont-Godinne, Yvoir, Belgium.
authors.forename: E
authors.initials: E
authors.lastname: Schroeder
authors.forename: B
authors.initials: B
authors.lastname: Marchandise
authors.forename: P
authors.initials: P
authors.lastname: De Coster
authors.forename: C
authors.initials: C
authors.lastname: Brichant
authors.forename: K
authors.initials: K
authors.lastname: Mitri
authors.forename: D
authors.initials: D
authors.lastname: Pieters
authors.forename: R
authors.initials: R
authors.lastname: Krémer
mesh_terms: D015906:Angioplasty, Balloon, Coronary; D003327:Coronary Disease / Q000175:diagnosis / Q000628:therapy*; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013794:Thallium Radioisotopes
chemical_list: D013794:Thallium Radioisotopes