Difference in Systolic Motion Velocity of the Left Ventricular Posterior Wall in Patients with Asymmetric Septal Hypertrophy and Prior Anteroseptal Myocardial Infarction. Evaluation by Pulsed Tissue Doppler Imaging.:Evaluation by Pulsed Tissue Doppler Ima
スポンサーリンク
概要
- 論文の詳細を見る
The left ventricular (LV) posterior wall in patients with asymmetric septal hypertrophy or prior anteroseptal myocardial infarction (A-MI) frequently demonstrates normal or supernormal motion to compensate for hypokinesis of the interventricular septum. This study evaluated the systolic motion velocity of the posterior wall in these conditions using a pulsed tissue Doppler imaging system. The study population consisted of 30 patients with hypertrophic cardiomyopathy (HC) and asymmetric septal hypertrophy, 25 with prior A-MI and 30 normal controls. The systolic excursion of the posterior wall was obtained by M-mode echocardiography. The endocardial motion velocities of the posterior wall were obtained by pulsed tissue Doppler imaging. The systolic excursion of the posterior wall was significantly greater in the A-MI and HC groups than in the control group, and was significantly greater in the A-MI group than in the HC group. The peak systolic velocity of the posterior wall was significantly lower in the HC group than in the control and A-MI groups, and the time from the electrocardiographic Q wave to the peak of the systolic wave of the posterior wall was significantly longer in the HC group than in the other groups. There were rough negative and positive correlations between the LV end-diastolic pressure and the peak systolic velocity and time from the Q wave to the peak of the systolic wave, respectively. In conclusion, LV myocardial contractility in HC patients was impaired when compared to A-MI patients despite similar posterior wall motion on the M-mode echocardiogram. Pulsed tissue Doppler imaging method may provide new insights and allow further evaluation of myocardial dysfunction.
- International Heart Journal刊行会の論文
著者
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Yamada Hirotsugu
The University of Tokushima Graduate School of Medicine
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Tabata Tomotsugu
Second Department of Internal Medicine
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Yamada Hirotsugu
Second Department of Internal Medicine
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Abe Miho
Second Department of Internal Medicine
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Onose Yukiko
Second Department of Internal Medicine
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IUCHI Arata
Second Department of Internal Medicine,University of Tokushima
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MANABE Kazuyo
Second Department of Internal Medicine,University of Tokushima
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Oki Takashi
Second Department Of Internal Medicine
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Ito Susumu
Second Department Of Internal Medicine School Of Medicine University Of Tokushima
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FUKUDA Nobuo
Institute for Clinical Research, Zentsuji National Hospital
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TABATA Tomotsugu
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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FUKUDA Kazuyo
Second Department of Internal Medicine, Tokushima University School of Medicine
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FUKUDA Kazuyo
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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ONOSE Yukiko
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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MANABE Kazuyo
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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IUCHI Arata
Second Department of Internal Medicine, Faculty of Medicine, Tokushima University
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IUCHI Arata
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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ABE Miho
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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OKI Takashi
Second Department of Internal Medicine, School of Medicine, The University of Tokushima
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