Association of mitral annulus calcification, aortic valve calcification with carotid intima media thickness.
BACKGROUND
Mitral annular calcification (MAC) and aortic annular calcification (AVC) may represent a manifestation of generalized atherosclerosis in the elderly. Alterations in vascular structure, as indexed by the intima media thickness (IMT), are also recognized as independent predictors of adverse cardiovascular outcomes.


OBJECTIVE
To examine the relationship between the degree of calcification at mitral and/or aortic valve annulus and large artery structure (thickness).


METHODS
We evaluated 102 consecutive patients who underwent transthoracic echocardiography and carotid artery echoDoppler for various indications; variables measured were: systemic blood pressure (BP), pulse pressure (PP=SBP-DBP), body mass index (BMI), fasting glucose, total, HDL, LDL chlolesterol, triglycerides, cIMT. The patients were divided according to a grading of valvular/annular lesions independent scores based on acoustic densitometry: 1 = annular/valvular sclerosis/calcification absence; 2 = annular/valvular sclerosis; 3 = annular calcification; 4 = annular-valvular calcification; 5 = valvular calcification with no recognition of the leaflets.


RESULTS
Patient score was the highest observed for either valvular/annulus. Mean cIMT increased linearly with increasing valvular calcification score, ranging from 3.9 +/- 0.48 mm in controls to 12.9 +/- 1.8 mm in those subjects scored 5 (p < 0.0001). In the first to fourth quartile of cIMT values the respective maximal percentual of score were: score 1: 76.1%, score 2: 70.1%, score 4: 54.3% and score 5: 69.5% (p > 0.0001).


CONCLUSIONS
MAC and AVC score can identify subgroups of patients with different cIMT values which indicate different incidence and prevalence of systemic artery diseases. This data may confirm MAC-AVC as a useful important diagnostic parameter of systemic atherosclerotic disease.
Sgorbini
Luca
L
Cardiologic Unit I.N.R.C.A.-I.R.C.C.S., Roma, Italy. luca.sgorbini@tiscali.it
Scuteri
Angelo
A
Leggio
Massimo
M
Leggio
Francesco
F
D000368:Aged; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D050197:Atherosclerosis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D002114:Calcinosis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D015994:Incidence; D007558:Italy / Q000453:epidemiology; D008297:Male; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D015995:Prevalence; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D013223:Statistics as Topic; D017539:Tunica Intima / Q000000981:diagnostic imaging*; D014463:Ultrasonography