Effects of Left Ventricular Chamber Size and Left Ventricular Diastolic Pressure on Left Atrial Booster Pump Function in Patients with Old Myocardial Infarction.

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概要

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• We characterized the influence of the size of the left ventricular (LV) chamber (LV diastolic diameter, LVDD) and LV end-diastolic pressure (LVEDP) on left atrial active stroke index (LAASI) in patients with old myocardial infarction (OMI) (n=118) and controls (n=25). Patients with OMI were classified into four groups according to the grade of LVDD (≥55 or <55mm) and LVEDP (≥18 or <18mmHg). LAASI was determined by multiplying the LV stroke index by the fraction of left atrial active contraction of the velocity-time integral on the pulsed-wave Doppler echocardiogram. LAASI in the "LVDD≥55& LVEDP≥18" group was less than that in the groups with normal LVEDP. LAASI did not differ among the normal LV dimension groups. The combination of LV enlargement and high LVEDP was related to the decrease in LAASI in patients with OMI.

• International Heart Journal刊行会の論文

著者

• IIZUKA Masahiko

  First Department of Internal Medicine, Dokkyo University School of Medicine

• Ogawa Kenichi

  First Department Of Internal Medicine Dokkyo University School Of Medicine

• Maezawa Hirotada

  First Department Of Medicine Dokkyo University School Of Medicine

• IIZUKA Masahiko

  First Department of Medicine (Cardiology and Pulmonary Disease), Dokkyo University School of Medicine

• MUROI Isabel

  First Department of Medicine (Cardiology and Pulmonary Disease), Dokkyo University School of Medicine

• OOIDA Akitsugu

  First Department of Medicine (Cardiology and Pulmonary Disease), Dokkyo University School of Medicine

• OGAWA Kenichi

  First Department of Medicine (Cardiology and Pulmonary Disease), Dokkyo University School of Medicine

• MAEZAWA Hirotada

  First Department of Medicine (Cardiology and Pulmonary Disease), Dokkyo University School of Medicine

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