ST-SEGMENT RE-ELEVATION AND LEFT VENTRICULAR EXPANSION SOON AFTER ACUTE ANTERIOR MYOCARDIAL INFARCTION
スポンサーリンク
概要
- 論文の詳細を見る
The sum of ST-segment elevation (ΣST on V_<2-4>) was measured to evaluate ST-segment re-elevation during early convalescence in 57 patients with acute myocardial infarction. Following rapid ST-segment elevation resolution during the first 12 h, ΣST again increased in many patients without signs of reinfarction or pericarditis, reaching a maximum approximately 5 days after onset. The magnitude of this re-elevation (Δ ΣST) was less than 0.3 mV in 30 patients (group A), and 0.3 mV or more in another 27 (group B). Based upon left ventriculography, the global ejection fraction in group B decreased significantly from 51±10% at the acute phase to 46±10% at the chronic phase. No such decreases were seen for group A. Regional ejection fraction in the infarcted portion improved significantly from 28±13% at the acute phase to 35±14% at the chronic phase in group A, but did not improve in group B. In addition, the non-infarcted portion in group B showed a significantly reduced regional ejection fraction. These results suggest that myocardial expansion of the infarcted portion may contribute to ST-segment re-elevation, an ominous sign of left ventricular dysfunction soon after acute myocardial infarction.
- 社団法人日本循環器学会の論文
- 1992-03-20
著者
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Koka H
First Department Of Internal Medicine Kinki University School Of Medicine
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OGAWA Iwao
Shiroyama Hospital
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Kanamasa Ken
The First Department of Internal Medicine, Kinki University School of Medicine
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Kanamasa Ken
近畿大学 医学部高血圧・老年内科部門
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Ishikawa Kinji
The First Department Of Internal Medicine Kinki University School Of Medicine
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Ogawa Iwao
The First Department of Internal Medicine, Kinki University
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Kato A
First Department Of Internal Medicine Kinki University
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Katori Ryo
First Department Of Internal Medicine Kinki University School Of Medicine
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Katori Ryo
The First Department Of Internal Medicine Kinki University School Of Medicine
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Shimizu Minoru
The First Department Of Internal Medicine Kinki University School Of Medicine
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Ogawa I
Shiroyama Hospital
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KOKA HIRONARI
The First Department of Medicine, Kinki University School of Medicine
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Katori Ryo
The First Department Of Internal Medicine Kinki University School Of Medicine Osaka
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