Symptomatic aortic stenosis: does systemic hypertension play an additional role?
Hypertension and aortic stenosis represent 2 different models of left ventricular systolic overload. Previous studies have observed different remodeling patterns in these conditions. There is, however, little information about patients with coexisting aortic stenosis and hypertension. Echocardiography was performed in 193 consecutive patients with symptomatic aortic stenosis (113 males, 80 females; mean age, 68+/-9 years). The prevalence of systemic hypertension was assessed. Left ventricular mass index and relative wall thickness were measured from M-mode echocardiography. Four different left ventricular remodeling patterns were identified: normal remodeling, concentric remodeling, concentric hypertrophy, and eccentric hypertrophy. A history of hypertension was present in 62 patients (32%), whereas 131 patients were normotensive. No significant differences were found between hypertensive and normotensive patients with respect to age, male/female ratio, mean New York Heart Association class, distribution of symptoms, left ventricular systolic and diastolic function, and remodeling patterns. In hypertensive patients, however, symptoms were present with larger aortic valve areas and lower stroke work loss. Systemic hypertension is not rare in patients with symptomatic aortic stenosis (32% in our series). Left ventricular remodeling patterns are quite similar in hypertensive and normotensive aortic stenosis. Our results suggest that symptoms of aortic stenosis develop with larger valve area and lower stroke work loss in hypertensive patients, probably because of the additional overload due to hypertension itself. It could suggest that in patients with coexisting hypertension and aortic stenosis, hypertension should be treated more aggressively to delay the occurrence of symptoms, and these patients should be followed-up more closely.
Antonini-Canterin
Francesco
F
Unità Operativa di Cardiologia, ARC, Azienda Ospedaliera S Maria degli Angeli, Via Montereale 24, 33170 Pordenone, Italy. cardiologia@aopn.fvg.it
Huang
Guoqian
G
Cervesato
Eugenio
E
Faggiano
Pompilio
P
Pavan
Daniela
D
Piazza
Rita
R
Nicolosi
Gian Luigi
GL
D000368:Aged; D001024:Aortic Valve Stenosis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications* / Q000000981:diagnostic imaging / Q000453:epidemiology; D017379:Hypertrophy, Left Ventricular / Q000000981:diagnostic imaging; D008297:Male; D015995:Prevalence; D014463:Ultrasonography; D016277:Ventricular Function, Left; D020257:Ventricular Remodeling