Forearm vasodilatory capacity in patients with syndrome X: a comparison with normal and hypertensive subjects.
Minimal forearm vascular resistances during maximal postischaemic vasodilation were measured in normotensive subjects with syndrome X, a condition characterized by angina and normal coronary arteries, in which a reduced coronary and systemic vasodilatory capacity has been reported. Age- and sex-matched normals and essential hypertensives constituted the control groups. The syndrome X patients had a significantly higher minimal forearm vascular resistance than the normals, indicating that arteriolar alterations may occur in the normotensive state and therefore cannot be considered solely as a consequence of hypertension.
Pedrinelli
R
R
Hypertension Unit, I Clinica Medica, University of Pisa, Italy.
Spessot
M
M
Lorenzoni
R
R
Marraccini
P
P
L'Abbate
A
A
Salvetti
A
A
Camici
P
P
D000787:Angina Pectoris / Q000503:physiopathology*; D001794:Blood Pressure / Q000502:physiology; D005260:Female; D005542:Forearm / Q000098:blood supply*; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008875:Middle Aged; D012039:Regional Blood Flow / Q000502:physiology; D013577:Syndrome; D014664:Vasodilation / Q000502:physiology*