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Prevention of Positive Coronary Artery Remodeling with Statin Therapy in Patients with Coronary Artery Diseases

Division of Cardiology, Ehime Prefectural Central Hospital, Ehime, Japan, suzuki-m{at}mail.netwave.or.jp

Makoto Saito, MD

Division of Cardiology, Ehime Prefectural Central Hospital, Ehime, Japan

Takayuki Nagai, MD

Division of Cardiology, Ehime Prefectural Central Hospital, Ehime, Japan

Hideyuki Saeki, MD

Division of Cardiology, Ehime Prefectural Central Hospital, Ehime, Japan

Yukio Kazatani, MD

Division of Cardiology, Ehime Prefectural Central Hospital, Ehime, Japan

Since positive coronary artery remodeling with large plaque burden is associated with subsequent coronary events, the authors tested their hypothesis that secondary prevention of coronary events by a statin may be associated with inhibition of the process of positive coronary artery remodeling in underlying coronary atherosclerotic lesions in patients with coronary artery diseases. They evaluated the intravascular ultrasound imaging in angiographically normal coronary lesions at baseline and after 6 months of therapy in 64 patients with coronary artery diseases. External elastic membrane area was defined as the vessel area, and the difference between the vessel and lumen area was calculated as plaque area. The relative echogenicity of coronary plaque to adventitia was evaluated as acoustic characteristics of coronary plaque. Twenty-five patients were treated with a statin and 39 patients did not receive a statin. In patients treated with a statin, plaque area decreased by 12% (p=0.013) compared to an increase in plaque area of 13% (p=0.023) in those who did not receive a statin. The vessel area was not enlarged in patients treated with a statin but did show positive remodeling in patients who had plaque progression without a statin. The relative echogenicity of plaque was unchanged in patients treated with a statin but significantly decreased in patients not receiving a statin. A statin may prevent positive coronary artery remodeling via inhibition of plaque progression in underlying coronary atherosclerotic lesions in patients with coronary artery diseases.

Angiology, Vol. 57, No. 3, 259-265 (2006)
DOI: 10.1177/000331970605700301


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