title: Angiographic evaluation of myocardial perfusion in patients with syndrome X.
abstract: We evaluated tissue level perfusion in patients who had syndrome X using the myocardial blush grade technique. Normal tissue perfusion in all coronary territories was observed in 23 patients (41.8%) who had syndrome X and in 44 control subjects (80%). Total myocardial blush score (sum of the myocardial blush grades of each coronary territory) was significantly lower in patients who had syndrome X than in control subjects (8.2 +/- 0.7 vs 8.7 +/- 0.5, p <0.0001). We have demonstrated for the first time that a substantial number of patients who have syndrome X have impaired tissue level perfusion, and this might be assumed as a surrogate marker of a diseased microvascular network in the catheterization laboratory.
authors.affiliation: The Department of Cardiology, Ankara University Faculty of Medicine, Ankara, Turkey. yusufatmaca1@yahoo.com
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Atmaca
authors.forename: Aydan Ongun
authors.initials: AO
authors.lastname: Ozdemir
authors.forename: Cagdas
authors.initials: C
authors.lastname: Ozdol
authors.forename: Didem
authors.initials: D
authors.lastname: Oguz
authors.forename: Sadi
authors.initials: S
authors.lastname: Gulec
authors.forename: Deniz
authors.initials: D
authors.lastname: Kumbasar
authors.forename: Cetin
authors.initials: C
authors.lastname: Erol
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D017023:Coronary Angiography; D003326:Coronary Circulation; D005260:Female; D006801:Humans; D008297:Male; D017566:Microvascular Angina / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012680:Sensitivity and Specificity