Solitary Papillary Muscle Hypertrophy as a Possible Form of Hypertrophic Cardiomyopathy
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概要
- 論文の詳細を見る
Patients can present with hypertrophied papillary muscles in the left ventricle, even without hypertrophy in other segments, and they have electrocardiographic(ECG)abnormalities suggestive of hypertrophic cardiomyopathy(HCM). This study was performed to evaluate whether the solitary papillary muscle hypertrophy was related to HCM. By analyzing 6731 echocardiographic studies between 1990 and 1994, the incidence of patients with papillary muscle hypertrophy was retrospectively examined, as well as the ECG features and family history related to HCM in these patients. After the normal size of the anterolateral and posteromedial papillary muscles was obtained from echocardiographic studies in 40 healthy subjects(0.7±0.2 cm for each of the vertical and horizontal axis), papillary muscle hypertrophy was defined as follows : either the vertical or horizontal diameter of at least one of the 2 papillary muscles was more than 1.1cm(mean+2SD in the normal subjects). Using this definition, 29 patients with papillary muscle hypertrophy were identified, of whom 14(48%)showed high voltage QRS complexes, 10(34%)showed T wave inversion, and 6(21%)showed abnormal Q waves. Ten patients(34%)had a family history of HCM. In 2 patients that were followed for 18 and 11 years, respectively, the voltages of the QRS complexes and inverted T waves progressed with the hypertrophy of the papillary muscle. These findings suggest that solitary papillary muscle hypertrophy is related to HCM and that papillary muscle hypertrophy is a newly identified subtype of or an early form of HCM.
- 社団法人日本循環器学会の論文
- 1998-10-20
著者
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Suwa M
Hokusetsu General Hospital
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Suwa Michihiro
The Third Division, Department of Internal Medicine
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Ito Takahide
The Third Division, Department of Internal Medicine, Osaka Medical College
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Kobashi Ayaka
The Third Division,Department of Internal Medicine,Osaka Medical Colleg
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Ito Takahide
Hayama Heart Center
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Kawamura K
Department Of Internal Medicine (iii) Osaka Medical College
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Kawamura Keishiro
Department Of Cardiology Sakakibara Heart Institute
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Kawamura Keishiro
大阪医科大学 内科学iii
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Kawamura Keishiro
The Third Division Department Of Internal Medicine Osaka Medical College
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Kawamura Keishiro
The Third Division Internal Medicine Osaka College
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Kawamura Keishiro
The Third Divisin Department Of Internal Medicine Osaka Medical College
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Hirota Yuzo
The Third Division, Department of Internal Medicine, Osaka Medical College
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Otake Yoshiaki
The Third Division, Department of Internal Medicine, Osaka Medical College
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Hirota Yuzo
The Third Division Department Of Internal Medicine Osaka Medical College
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Hirota Yuzo
Department Of Thoracic Surgery Osaka Medical College
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Hirota Yuzo
The Third Division Department Of Internal Medicine Osaka Medical College Takatsuki
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Otake Yoshiaki
The Third Division Department Of Internal Medicine Osaka Medical College
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Suwa Michihiro
Dept. Of Intern. Med. Osaka Medical Colledge.
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Suwa Michihiro
3rd Division Department Of Internal Medicine Osaka Medical College
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Suwa Michihiro
Third Department Of Internal Medicine Osaka Medical College
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Ito Takahide
The Third Division Department Of Internal Medicine Osaka Medical College
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Kobashi Ayaka
The Third Division Department Of Internal Medicine Osaka Medical Colleg
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Suwa Michihiro
The Third Division Department Of Internal Medicine Osaka Medical College
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Kawamura Keishiro
Department Of Internal Medicine (iii) Osaka Medical College
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Hirota Yuzo
The Third Department Of Internal Medicine Osaka Medical College
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Suwa Michihiro
大阪医科大学
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Kawamura Keishiro
3rd Div. Dept. Intern. Med. Osaka Medical College
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Kawamura Keishiro
3rd Div. Dept. Of Intern. Med. Kyoto Univ. Hosp.
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Ito Takahide
The Third Department Of Internal Medicine Osaka Medical College
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Kawamura Keishiro
The 3rd Div. Dept.of Int.med. Osaka Medical College
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Kawamura Keishiro
The Third Department Of Internal Medicine Osaka Medical College
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Katayama Kazuhiro
2nd Dept. Of Internal Med. Yamaguchi University
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