Usefulness of a new grading system based on coronary flow velocity pattern in predicting outcome in patients with acute myocardial infarction having percutaneous coronary intervention

Atsunori Okamura, Hiroshi Itoh, Katsuomi Iwakura, Shigeo Kawano, Koichi Inoue, Koichi Yamamoto, Toshio Ogihara, Kenshi Fujii

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

In acute myocardial infarction, the coronary blood flow velocity waveform changes with the damage in the infarcted myocardium. We developed a grading system using the shorter diastolic deceleration time (DDT), appearance of systolic flow reversal (SFR), and disappearance of systolic anterograde flow. We studied 72 patients with a first anterior acute myocardial infarction. Doppler guidewire monitoring and myocardial contrast echocardiography were performed 10 and 15 minutes after percutaneous coronary intervention, and left ventriculography was performed at discharge (24 ± 2 days) to measure regional wall motion (SD/chord). Patients were classified into 4 groups according to the coronary blood flow velocity pattern: group I (n = 39), DDT ≥600 ms; group II (n = 10), DDT

Original languageEnglish
Pages (from-to)927-932
Number of pages6
JournalAmerican Journal of Cardiology
Volume96
Issue number7
DOIs
Publication statusPublished - Oct 1 2005
Externally publishedYes

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Deceleration
Percutaneous Coronary Intervention
Blood Flow Velocity
Myocardial Infarction
Echocardiography
Myocardium

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Usefulness of a new grading system based on coronary flow velocity pattern in predicting outcome in patients with acute myocardial infarction having percutaneous coronary intervention. / Okamura, Atsunori; Itoh, Hiroshi; Iwakura, Katsuomi; Kawano, Shigeo; Inoue, Koichi; Yamamoto, Koichi; Ogihara, Toshio; Fujii, Kenshi.

In: American Journal of Cardiology, Vol. 96, No. 7, 01.10.2005, p. 927-932.

Research output: Contribution to journalArticle

Okamura, Atsunori ; Itoh, Hiroshi ; Iwakura, Katsuomi ; Kawano, Shigeo ; Inoue, Koichi ; Yamamoto, Koichi ; Ogihara, Toshio ; Fujii, Kenshi. / Usefulness of a new grading system based on coronary flow velocity pattern in predicting outcome in patients with acute myocardial infarction having percutaneous coronary intervention. In: American Journal of Cardiology. 2005 ; Vol. 96, No. 7. pp. 927-932.
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