Is atrial pacing needed for determination of coronary flow reserve by parametric imaging?

Détails

ID Serval
serval:BIB_BE34AD758D3F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Is atrial pacing needed for determination of coronary flow reserve by parametric imaging?
Périodique
American Journal of Cardiology
Auteur(s)
Vassalli  G., Hess  O. M., Krogmann  O. N., Oechslin  E., Grimm  J., Jiang  Z., Krayenbuehl  H. P.
ISSN
0002-9149 (Print)
Statut éditorial
Publié
Date de publication
02/1993
Volume
71
Numéro
5
Pages
415-9
Notes
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Feb 15
Résumé
Heart rate changes during determination of coronary flow by parametric imaging may influence the flow measurement. Thus, the question is whether atrial pacing is mandatory for determination of coronary flow reserve (CFR) by this technique. CFR was calculated by digital subtraction angiography (parametric imaging) in 10 patients (8 with coronary artery disease and 2 control subjects) during sinus rhythm and during atrial pacing. Flow measurements were determined in the perfusion region of the left anterior descending and circumflex coronary artery, both at rest and after maximal coronary vasodilation with 10 mg intracoronary papaverine. CFR was defined as coronary flow during hyperemia divided by coronary flow at rest. Spontaneous heart rate was 71 +/- 15 min-1 at baseline, 73 +/- 15 min-1 after papaverine injection and 85 +/- 10 min-1 during atrial pacing. Heart rate variations during coronary arteriography were 4 +/- 3 min-1 at baseline and 5 +/- 4 min-1 after papaverine administration. CFR was 2.61 +/- 1.01 during sinus rhythm and 2.67 +/- 1.05 during atrial pacing. Mean absolute difference in CFR between sinus rhythm and atrial pacing was 0.31 +/- 0.31 (12 +/- 10% of CFR during pacing). Spontaneous heart rate variations during coronary arteriography are not associated with significant changes in CFR. Thus, atrial pacing is not mandatory for the determination of CFR by parametric imaging.
Mots-clé
*Angiography, Digital Subtraction Atrial Function/physiology *Cardiac Pacing, Artificial/methods Coronary Angiography/*methods Coronary Circulation/*physiology Coronary Disease/*radiography Heart Rate/*physiology Humans Middle Aged Papaverine/diagnostic use
Pubmed
Web of science
Création de la notice
28/01/2008 11:32
Dernière modification de la notice
20/08/2019 16:32
Données d'usage