Detection of embolic particles with the Doppler guide wire during coronary intervention in patients with acute myocardial infarction
Efficacy of distal protection device
Atsunori Okamura, MD*,
Hiroshi Ito, MD, FACC*,*,
Katsuomi Iwakura, MD*,
Shigeo Kawano, MD*,
Koichi Inoue, MD*,
Yoshihiro Maekawa, MD*,
Toshio Ogihara, MD and
Kenshi Fujii, MD*
* Division of Cardiology, Sakurabashi Watanabe Hospital, Osaka, Japan
Department of Geriatric Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan

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Figure 1 Representative coronary blood flow velocity spectra of the two groups. High-intensity transient signals (HITS) were detected in the non-distal protection (DP) group, but not in the DP group. D = diastole; S = systole.
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Figure 2 Comparison of the number of high-intensity transient signals (HITS) among the two groups. Data are expressed as the mean value ± SD. DP = distal protection.
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