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Figure 2 Fractional area shortening by echocardiography after ischemia and reperfusion. A significant decline in fractional area shortening by echocardiography occurs during ischemia in both animal groups. In animals receiving saline a further decline in fractional area shortening (FAS) is seen after reperfusion, indicating "stunning"; in the NG-nitro-L-arginine (L-NNA) animals, FAS after reperfusion returns to baseline levels—a cardioprotective effect.
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