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Outcome of coronary plaque burden: a 10-year follow-up of aggressive medical management.

Abstract：

BACKGROUND:The effect of aggressive medical therapy on quantitative coronary plaque burden is not generally known, especially in ethnic Chinese. AIMS:We reasoned that Cardiac CT could conveniently quantify early coronary atherosclerosis in our patient population, and hypothesized that serial observation could differentiate the efficacy of aggressive medical therapy regarding progression and regression of the atherosclerotic process, as well as evaluating the additional impact of life-style modification and the relative effects of the application of statin therapy. METHODS:We employed a standardized Cardiac CT protocol to serially scan 113 westernized Hong Kong Chinese individuals (64 men and 49 women) with Chest Pain and positive coronary risk factors. In all cases included for this serial investigation, subsequent evaluation showed no significantly-obstructive coronary disease by functional studies and angiography. After stringent risk factor modification, including aggressive statin therapy to achieve LDL-cholesterol lowering conforming to N.C.E.P. ATP III guidelines, serial CT scans were performed 1-12 years apart for changes in coronary artery calcification (CAC), using the Agatston Score (AS) for quantification. RESULTS:At baseline, the mean AS was 1413.6 for males (mean age 54.4 years) and 2293.3 for females (mean age 62.4 years). The average increase of AS in the entire study population was 24% per year, contrasting with 16.4% per year on strict risk factor modification plus statin therapy, as opposed to 33.2% per year for historical control patients (p < 0.001). Additionally, 20.4% of the 113 patients demonstrated decreasing calcium scores. Medical therapy also yielded a remarkably low adverse event rate during the follow-up period --- 2 deaths, 2 strokes and only 1 case requiring PCI. CONCLUSIONS:This study revealed that aggressive medical therapy can positively influence coronary plaque aiding in serial regression of calcium scores.

journal_name

Cardiovasc Ultrasound

journal_title

Cardiovascular ultrasound

authors

Goh VK,Lau CP,Mohlenkamp S,Rumberger JA,Achenbach S,Budoff MJ

doi

10.1186/1476-7120-8-5

subject

Has Abstract

pub_date

2010-03-12 00:00:00

pages

issn

1476-7120

pii

1476-7120-8-5

journal_volume

pub_type

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Outcome of coronary plaque burden: a 10-year follow-up of aggressive medical management.