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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

View larger version (94K): [in a new window]   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.

View larger version (12K): [in a new window]   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.