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Dive into the research topics where Akihiko Muramoto is active.

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Featured researches published by Akihiko Muramoto.


Journal of Cardiology Cases | 2010

Idiopathic dissection from left subclavian artery to brachial artery: Spontaneous repair with conservative management

Akira Funada; Hidekazu Ino; Noboru Fujino; Kenshi Hayashi; Katsuharu Uchiyama; Eiichi Masuta; Yuichiro Sakamoto; Toshinari Tsubokawa; Akihiko Muramoto; Masakazu Yamagishi

We report an unusual case of a 58-year-old female with idiopathic dissection of the left subclavian artery to the brachial artery which provoked vessel narrowing in the acute phase and was spontaneously repaired without surgical procedures in the chronic phase. We describe the serial imaging findings of the angiography and ultrasonography which demonstrate restoration of the dissection. In carefully selected patients, conservative management could be an alternative treatment to surgery or stenting with an excellent outcome.


Circulation | 2010

Impact of Renin-Angiotensin System Polymorphisms on Development of Systolic Dysfunction in Hypertrophic Cardiomyopathy

Akira Funada; Tetsuo Konno; Noboru Fujino; Akihiko Muramoto; Kenshi Hayashi; Toshinari Tsubokawa; Kenji Sakata; Masa-aki Kawashiri; Yoshiyu Takeda; Hidekazu Ino; Masakazu Yamagishi


Japanese Circulation Journal-english Edition | 2010

Impact of renin-angiotensin system polymorphisms on development of systolic dysfunction in hypertrophic cardiomyopathy. Evidence from a study of genotyped patients.

Akira Funada; Tetsuo Konno; Noboru Fujino; Akihiko Muramoto; Kenshi Hayashi; Toshinari Tsubokawa; Kenji Sakata; Masa-aki Kawashiri; Yoshiyu Takeda; Hidekazu Ino; Masakazu Yamagishi


Journal of Echocardiography | 2010

Unusual biatrial thrombus in mitral stenosis

Toshinari Tsubokawa; Akihiko Muramoto; Tatsuya Tarui; Tetsuo Konno; Hidekazu Ino; Shoujirou Yamaguchi; Go Watanabe; Masakazu Yamagishi


Japanese Circulation Journal-english Edition | 2006

PE-067 Late Gadolinium Enhancement Cardiovascular Magnetic Resonance in Hypertrophic Cardiomyopathy Caused by Cardiac Troponinl Gene Mutation(Cardiomyopathy, basic/clinical-3 (M) PE12,Poster Session (English),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society)

Eiichi Masuta; Hidekazu Ino; Noboru Fujino; Katsuharu Uchiyama; Kenshi Hayashi; Tetsuo Konno; Tatsumi Hayashi; Yuichiro Sakamoto; Keisuke Nakashima; Akihiko Muramoto; Masami Shimizu


Journal of the American College of Cardiology | 2010

IMPACT OF EXTENT OF MYOCARDIAL FIBROSIS ON OCCURRENCE OF VENTRICULAR TACHYARRHYTHMIA IN HYPERTROPHIC CARDIOMYOPATHY: RESULTS FROM MRI WITH LATE GADOLINIUM ENHANCEMENT STUDY IN GENOTYPED PATIENTS

Junichiro Yokawa; Eiichi Masuta; Noboru Fujino; Kenshi Hayashi; Katsuharu Uchiyama; Akira Funada; Yuichiro Sakamoto; Toshinari Tsubokawa; Akihiko Muramoto; Hidekazu Ino; Masakazu Yamagishi


Journal of the American College of Cardiology | 2010

IMPACT OF ANGIOTENSIN-CONVERTING ENZYME DELETION ALLELE AS A MODIFIER CAUSING LEFT VENTRICULAR SYSTOLIC DYSFUNCTION IN GENOTYPED HYPERTROPHIC CARDIOMYOPATHY: RESULTS FROM LONGITUDINAL STUDY

Akira Funada; Noboru Fujino; Eiichi Masuta; Akihiko Muramoto; Hidekazu Ino; Masakazu Yamagishi


Journal of the American College of Cardiology | 2010

IMPACT OF DUAL MUTATIONS OF SARCOMERE GENE ON CLINICAL MANIFESTATION OF HYPERTROPHIC CARDIOMYOPATHY ASSOCIATED WITH MYOSIN-BINDING PROTEIN C GENE MUTATION: EVIDENCE FROM SERIAL ANALYSIS OF 50 GENOTYPED PATIENTS

Akihiko Muramoto; Noboru Fujino; Kenshi Hayashi; Katsuharu Uchiyama; Eiichi Masuta; Akira Funada; Yuichiro Sakamoto; Junichiro Yokawa; Hidekazu Ino; Masakazu Yamagishi


Journal of Cardiac Failure | 2010

Systolic Dysfunction and Prognosis in Genotyped Hypertrophic Cardiomyopathy

Noboru Fujino; Tetsuo Konno; Akihiko Muramoto; Hidekazu Ino; Masakazu Yamagishi


Biophysical Journal | 2010

KCNH2 Channel Activators Increase Ikr in Hl-1 Cardiomyocytes and May Prevent the Occurrence of Torsades De Pointes in Long QT Syndrome

Kenshi Hayashi; Yuichiro Sakamoto; Hidekazu Ino; Noboru Fujino; Katsuharu Uchiyama; Eiichi Masuta; Toshinari Tsubokawa; Akihiko Muramoto; Junichiro Yokawa; Yasutaka Kurata; Haruhiro Higashida; Masakazu Yamagishi

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