Early Effects of Percutaneous Mitral Valvuloplasty on Left Atrial Mechanical Functions

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著者

    • BITIGEN ATILA
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • TURKMEN MUHSIN
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • KARAKAYA OSMAN
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • SAGLAM MUSTAFA
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • BARUTCU IRFAN
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • ESEN ALI METIN
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • TURKYILMAZ ERDEM
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • ERKOL AYHAN
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • BULUT MUSTAFA
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • BOZTOSUN BILAL
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal
    • KIRMA CEVAT
    • Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Hospital Kartal

抄録

It has been suggested that successful percutaneous balloon mitral valvuloplasty (PMV) decreases the intensity of spontaneous left atrial contrast, reduces the size of the left atrium, and improves left atrial function in patient with mitral stenosis. However, left atrial mechanical functions immediately after PMV have not been extensively evaluated yet. The aim of this study was to evaluate the effects of PMV on left atrial mechanical functions. Twenty patients with critical mitral stenosis who have normal sinus rhythm (male/female: 4 to 16; mean age: 33 ± 8 years) were included in the study. Left atrial mechanical functions were evaluated before and after PMV, including left atrial passive emptying volume, LA passive emptying fraction, conduit volume, left ventricular stroke volume, LA active emptying volume, LA active emptying fraction, LA total emptying volume and LA total emptying fraction. PMV resulted in a significant increase in the mitral valve area (<i>p</i> < 0.001) and a substantial reduction in the mean transmitral pressure gradient (<i>p</i> < 0.001) as well as LA diameter (<i>p</i> < 0.002). LA maximal volume, minimal volume and atrial presystolic volumes were significantly decreased after PMV (<i>p</i>: 0.001; <i>p</i>: 0.002; <i>p</i>: 0.001, respectively). The conduit volume was increased and LA total emptying volume was decreased after PMV (<i>p</i>: 0.014; <i>p</i>: 0.035). The other left atrial volumes were not altered after PMV. The early increase in conduit volume and the decrease in left atrial presystolic volume indicate that PMV has favorable effects on atrial reservoir and conduit functions. PMV therefore improves atrial mechanic functions.

収録刊行物

  • THE TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE  

    THE TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE 209(4), 285-289, 2006-08-01 

    Tohoku University Medical Press

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各種コード

  • NII論文ID(NAID)
    10018172128
  • NII書誌ID(NCID)
    AA00863920
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00408727
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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