Comparison of Clinical Characteristics and Arterial Remodeling by Intravascular Ultrasonic Imaging in Three Age Groups (≤55, 56 to 69 and ≥70 Years) of Japanese Patients With Acute Myocardial Infarction

Shoichi Ehara, Takahiko Naruko, Yoshiki Kobayashi, Toru Kataoka, Masashi Nakagawa, Nobuyuki Shirai, Hideshi Ishii, Takuhiro Okuyama, Hiroki Oe, Kenichi Sugioka, Takeshi Hozumi, Kazuo Haze, Junichi Yoshikawa, Minoru Yoshiyama, Makiko Ueda

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Recent epidemiologic, pathologic, and intravascular ultrasound (IVUS) studies have shown that there are differences in coronary risk factors or plaque morphology between younger and older patients with acute myocardial infarctions (AMIs). This study examined clinical background and plaque morphology using IVUS in younger and older adults with AMIs in Japan. The study population consisted of 96 patients with AMIs, for whom preinterventional IVUS images were obtained. Patients were classified into 3 groups: a young group (aged ≤55 years), a middle-aged group (aged 56 to 69 years), and an old group (aged ≥70 years). The remodeling index was defined as the ratio of the external elastic membrane area at the culprit lesion to the external elastic membrane area at the proximal reference site. Expansive remodeling was defined as a remodeling index >1.05 and constrictive remodeling as a remodeling index

Original languageEnglish
Pages (from-to)1713-1717
Number of pages5
JournalAmerican Journal of Cardiology
Volume100
Issue number12
DOIs
Publication statusPublished - Dec 15 2007
Externally publishedYes

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Ultrasonography
Age Groups
Myocardial Infarction
Membranes
Young Adult
Japan
Population
Clinical Studies

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Comparison of Clinical Characteristics and Arterial Remodeling by Intravascular Ultrasonic Imaging in Three Age Groups (≤55, 56 to 69 and ≥70 Years) of Japanese Patients With Acute Myocardial Infarction. / Ehara, Shoichi; Naruko, Takahiko; Kobayashi, Yoshiki; Kataoka, Toru; Nakagawa, Masashi; Shirai, Nobuyuki; Ishii, Hideshi; Okuyama, Takuhiro; Oe, Hiroki; Sugioka, Kenichi; Hozumi, Takeshi; Haze, Kazuo; Yoshikawa, Junichi; Yoshiyama, Minoru; Ueda, Makiko.

In: American Journal of Cardiology, Vol. 100, No. 12, 15.12.2007, p. 1713-1717.

Research output: Contribution to journalArticle

Ehara, S, Naruko, T, Kobayashi, Y, Kataoka, T, Nakagawa, M, Shirai, N, Ishii, H, Okuyama, T, Oe, H, Sugioka, K, Hozumi, T, Haze, K, Yoshikawa, J, Yoshiyama, M & Ueda, M 2007, 'Comparison of Clinical Characteristics and Arterial Remodeling by Intravascular Ultrasonic Imaging in Three Age Groups (≤55, 56 to 69 and ≥70 Years) of Japanese Patients With Acute Myocardial Infarction', American Journal of Cardiology, vol. 100, no. 12, pp. 1713-1717. https://doi.org/10.1016/j.amjcard.2007.07.021
Ehara, Shoichi ; Naruko, Takahiko ; Kobayashi, Yoshiki ; Kataoka, Toru ; Nakagawa, Masashi ; Shirai, Nobuyuki ; Ishii, Hideshi ; Okuyama, Takuhiro ; Oe, Hiroki ; Sugioka, Kenichi ; Hozumi, Takeshi ; Haze, Kazuo ; Yoshikawa, Junichi ; Yoshiyama, Minoru ; Ueda, Makiko. / Comparison of Clinical Characteristics and Arterial Remodeling by Intravascular Ultrasonic Imaging in Three Age Groups (≤55, 56 to 69 and ≥70 Years) of Japanese Patients With Acute Myocardial Infarction. In: American Journal of Cardiology. 2007 ; Vol. 100, No. 12. pp. 1713-1717.
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