Reverse vessel remodeling but not coronary plaque regression could predict future cardiovascular events in ACS patients with intensive statin therapy--the extended JAPAN-ACS study

Katsumi Miyauchi, Hiroyuki Daida, Takeshi Morimoto, Takafumi Hiro, Takeshi Kimura, Yoshihisa Nakagawa, Masakazu Yamagishi, Yukio Ozaki, Kazushige Kadota, Kazuo Kimura, Atsushi Hirayama, Kazumi Kimura, Yasuhiro Hasegawa, Shinichiro Uchiyama, Masunori Matsuzaki, JAPAN-ACS Investigators, Katsumi Miyauchi, Takafumi Hiro, Yoshihisa Nakagawa, Masakazu Yamagishi, Yukio Ozaki, Takeshi Kimura, Hiroyuki Daida, Masunori Matsuzaki, Kazushige Kadota, Kazuo Kimura, Atsushi Hirayama, Kazumi Kimura, Yasuhiro Hasegawa, Shinichiro Uchiyama, Takeshi Morimoto, Hiroaki Takashima, Kenji Asai, Yasushi Kuhara, Tadaya Sato, Masato Watarai, Kenji Takamoto, Hideki Okayama, Yukio Ozaki, Hiroyuki Naruse, Keijiro Saku, Shin-ichiro Miura, Atsushi Iwata, Toshiyuki Noda, Shunichiro Warita, Keigo Dote, Masaya Kato, Ichiro Inoue, Takuji Kawagoe, Haruo Kamiya, Hiroyuki Daida, Katsumi Miyauchi, Satoru Suwa, Yuji Nakazato, Kosei Tanimoto, Masaaki Uematsu, Fusako Sera, Masashi Iwabuchi, Shinichi Shirai, Kazuaki Mitsudo, Yasushi Fuku, Takeshi Kimura, Tomoya Tada, Hiroshi Nonogi, Hiroshi Iida, Shinichi Minagoe, Hitoshi Nakashima, Masahiro Sonoda, Hideki Tanaka, Tetsuro Kouya, Noriyuki Miyamoto, Toru Ujihira, Akira Itoh, Kazato Ito, Koichi Nakao, Yasunobu Hirata, Jiro Ando, Hiroshi Ogawa, Takahiro Iwami, Sugao Ishiwata, Yo Fujimoto, Yasuhiko Hayashi, Nobuo Shiode, Mamoru Toyofuku, Takashi Akasaka, Hironori Kitabata, Masunori Matsuzaki, Takayuki Okamura, Masaaki Kanashiro, Toru Aoyama, Kiyoshi Hibi, Mitsuaki Endo, Katsumi Miyauchi, Hiroyuki Daida, Takeshi Morimoto, Takafumi Hiro, Takeshi Kimura, Yoshihisa Nakagawa, Masakazu Yamagishi, Yukio Ozaki, Kazushige Kadota, Kazuo Kimura, Atsushi Hirayama, Kazumi Kimura, Yasuhiro Hasegawa, Shinichiro Uchiyama, Masunori Matsuzaki, JAPAN-ACS Investigators, Katsumi Miyauchi, Takafumi Hiro, Yoshihisa Nakagawa, Masakazu Yamagishi, Yukio Ozaki, Takeshi Kimura, Hiroyuki Daida, Masunori Matsuzaki, Kazushige Kadota, Kazuo Kimura, Atsushi Hirayama, Kazumi Kimura, Yasuhiro Hasegawa, Shinichiro Uchiyama, Takeshi Morimoto, Hiroaki Takashima, Kenji Asai, Yasushi Kuhara, Tadaya Sato, Masato Watarai, Kenji Takamoto, Hideki Okayama, Yukio Ozaki, Hiroyuki Naruse, Keijiro Saku, Shin-ichiro Miura, Atsushi Iwata, Toshiyuki Noda, Shunichiro Warita, Keigo Dote, Masaya Kato, Ichiro Inoue, Takuji Kawagoe, Haruo Kamiya, Hiroyuki Daida, Katsumi Miyauchi, Satoru Suwa, Yuji Nakazato, Kosei Tanimoto, Masaaki Uematsu, Fusako Sera, Masashi Iwabuchi, Shinichi Shirai, Kazuaki Mitsudo, Yasushi Fuku, Takeshi Kimura, Tomoya Tada, Hiroshi Nonogi, Hiroshi Iida, Shinichi Minagoe, Hitoshi Nakashima, Masahiro Sonoda, Hideki Tanaka, Tetsuro Kouya, Noriyuki Miyamoto, Toru Ujihira, Akira Itoh, Kazato Ito, Koichi Nakao, Yasunobu Hirata, Jiro Ando, Hiroshi Ogawa, Takahiro Iwami, Sugao Ishiwata, Yo Fujimoto, Yasuhiko Hayashi, Nobuo Shiode, Mamoru Toyofuku, Takashi Akasaka, Hironori Kitabata, Masunori Matsuzaki, Takayuki Okamura, Masaaki Kanashiro, Toru Aoyama, Kiyoshi Hibi, Mitsuaki Endo

Abstract

Background: The JAPAN-ACS study demonstrated that statins significantly reduced coronary plaque volume in patients with acute coronary syndrome (ACS). The clinical implications of plaque regression for clinical outcomes in ACS patients has not been established. The Extended JAPAN-ACS study was conducted to evaluate the relationship between coronary plaque regression and long-term clinical outcome, and to explore the factors associated with cardiovascular events.

Methods and results: Patients with intravascular ultrasound (IVUS) data at both enrollment and follow-up in the JAPAN-ACS study were enrolled and observed for at least 3 years. Patients were divided into lesser and greater coronary plaque regression groups. The primary endpoint was defined as a composite of the following events: cardiovascular death, nonfatal myocardial infarction, nonfatal cerebral infarction, and unstable angina. The median value of the percent change in plaque volume, 18.0%, was used as a cutoff point. There were 4 primary events (3.4%) in the lesser regression group, and 2 events (1.7%) in the greater regression group (P=0.4). Cumulative secondary cardiovascular events did not differ between the 2 groups. Multivariate analysis identified the high-density lipoprotein cholesterol (HDL-C) at baseline and the % change of the external elastic membrane volume as independent risk factors of cardiovascular events.

Conclusions: Coronary plaque regression induced by an intensive statin regimen did not predict future cardiovascular events in ACS patients. Rather, the baseline HDL-C level and reverse vessel remodeling might serve as predictors for cardiovascular events.

Trial registration: ClinicalTrials.gov NCT01223586.

Source: PubMed

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