title: Interpretation of cardiac pathophysiology from pressure waveform analysis: coronary hemodynamics, Part III: Coronary hyperemia.
abstract: Basal patterns (systolic/diastolic components) of coronary flow velocity as previously described are generally maintained during hyperemia and can be easily recorded in the catheterization laboratory during pharmacologic stimulation. The interpretation of the clinical significance of coronary vasodilatory reserve may be complicated by both coronary and myocardial diseases. Distal coronary artery hyperemic responses measured with ultrasound Doppler-tipped guidewires will provide new information on traditional observations of coronary physiology in humans.
authors.affiliation: Cardiology Division, St. Louis University Hospital, Missouri 63110.
authors.forename: M J
authors.initials: MJ
authors.lastname: Kern
authors.forename: F
authors.initials: F
authors.lastname: Aguirre
authors.forename: T
authors.initials: T
authors.lastname: Donohue
authors.forename: R
authors.initials: R
authors.lastname: Bach
mesh_terms: D000241:Adenosine; D001783:Blood Flow Velocity / Q000502:physiology; D006328:Cardiac Catheterization; D003287:Contrast Media; D003326:Coronary Circulation / Q000502:physiology*; D003327:Coronary Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D004176:Dipyridamole; D006801:Humans; D006940:Hyperemia / Q000503:physiopathology*; D005996:Nitroglycerin; D010208:Papaverine; D012815:Signal Processing, Computer-Assisted; D014463:Ultrasonography
chemical_list: D003287:Contrast Media; D004176:Dipyridamole; D010208:Papaverine; D005996:Nitroglycerin; D000241:Adenosine