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Dive into the research topics where Ryuma Matsumoto is active.

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Featured researches published by Ryuma Matsumoto.


Japanese Heart Journal | 1986

Isoproterenol infusion stress two-dimensional echocardiography in diagnosis of coronary artery disease in elderly patients: comparison with the other stress testing methods

Takanori Fujita; Ryuichi Ajisaka; Ryuma Matsumoto; Kaname Iida; Keiji Iida; Yasuro Sugishita; Iwao Ito; Tohoru Takeda; Masayoshi Akisada


Clinical Cardiology | 1986

Difference in the response to isoproterenol between asymmetric septal hypertrophy and symmetric hypertrophy in patients with hypertrophic cardiomyopathy

Kaname Iida; Yasuro Sugishita; Mitsuo Matsuda; T. Yamaguchi; Ryuichi Ajisaka; Ryuma Matsumoto; Takanori Fujita; Kimihiko Yukisada; Iwao Ito


Clinical Cardiology | 1987

Variable neurohumoral and hemodynamic responses to exercise in patients with exertional angina: Influence of the severity of coronary artery disease

Takanori Fujita; Ryuichi Ajisaka; Ryuma Matsumoto; Kaname Iida; Yasuro Sugishita; Iwao Ito; Toru Takeda; Masayoshi Akisada


Japanese Heart Journal | 1989

The Significance of Abnormal Systolic Blood Pressure Response during Supine Ergometer Exercise and Postexercise in Ischemic Heart Disease, Studied by Exercise Radionuclide Ventriculography

Ryuichi Ajisaka; Shigeyuki Watanabe; Takeshi Masuoka; Takanori Fujita; Ryuma Matsumoto; Kaname Iida; Takeshi Ogawa; Yasuro Sugishita; Iwao Ito; Tohru Takeda; Hinako Toyama; Nobuyoshi Ishikawa; Masayoshi Akisada


Japanese Heart Journal | 1989

Effect of nifedipine on left ventricular function during exercise in patients with stable effort angina. Relation of its efficacy to the severity of coronary artery disease

Ryuichi Ajisaka; Takeshi Masuoka; Takanori Fujita; Ryuma Matsumoto; Kaname Iida; Yasuro Sugishita; Iwao Ito; Tohru Takeda; Hinako Toyama; Nobuyoshi Ishikawa; Masayoshi Akisada


Japanese Circulation Journal-english Edition | 1983

PLASMA NOREPINEPHRINE CONCENTRATION DURING EXERCISE IN PATIENTS WITH DIFFERENT TYPES OF HYPERTROPHIC CARDIOMYOPATHY : PROCEEDINGS OF THE 47th ANNUAL SCIENTIFIC MEETING OF THE JAPANESE CIRCULATION SOCIETY : Pathophysiology

Yasuro Sugishita; Keiji Iida; Mitsuo Matsuda; Ryuichi Ajisaka; Ryuma Matsumoto; Takanori Fujita; Iwao Ito


Archive | 2007

Effect of sublingual nefedipine on left ventricular systolic and diastolic functions during isometric exercise in patients with dilated cardiomyopathy

Ryuma Matsumoto; Ryuichi Ajisaka


Japanese Circulation Journal-english Edition | 2005

Sinus Node Dysfunction Concomitant with Brugada Syndrome(Arrhythmia, Diagnosis/Pathophysiology/EPS 6 (A), The 69th Annual Scientific Meeting of the Japanese Circulation Society)

Masataka Sumiyoshi; Yuji Nakazato; Takashi Tokano; Ryuma Matsumoto; Masaki Kawamura; Yoriaki Mineda; Satoshi Kojima; Satoru Suwa; Yasuro Nakata; Hiroyuki Daida


Japanese Circulation Journal-english Edition | 1987

-391- EFFECTS OF NIFEDIPINE ON LEFT VENTRICULAR FUNCTION DURING EXERCISE IN PATIENTS WITH STABLE EFFORT ANGINA : RELATION OF ITS EFFICACY TO THE DEGREE OF CORONARY ARTERY DISEASE

Ryuichi Ajisaka; Kenji Masuoka; Takanori Fujita; Ryuma Matsumoto; Kaname Iida; Takeshi Ogawa; Yasuro Sugishita; Iwao Ito; Tohru Takeda; Hinako Tayama; Masayoshi Akisada


Japanese Circulation Journal-english Edition | 1987

-388- PROGNOSTIC SIGNIFICANCE OF POSTEXERCISE ABNORMAL ELEVATION OF SYSTOLIC BLOOD PRESSURE IN PATIENTS WITH ISCHEMIC HEART DISEASE : COMPARISON WITH THAT OF EXERTIONAL "HYPOTENSION"

Ryuichi Ajisaka; Kenji Masuoka; Takanori Fujita; Ryuma Matsumoto; Kaname Iida; Takeshi Ogawa; Yasuro Sugishita; Iwao Ito; Tohru Takeda; Hinako Tayama; Masayoshi Akisada

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Iwao Ito

University of Tsukuba

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Kaname Iida

Memorial Hospital of South Bend

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