case_images: PMC1502069_01
case_images: A Electrocardiogram showing prominent 'U' waves (arrows) in leads V3, V4, V5 in patient prior to intervention. B Post revascularization electrocardiogram showing dramatic disappearance of U waves with similar other findings
case_images: ipej050063-01b.jpg
case_images: PMC1502069_01_ipej050063-01b.jpg
case_images: F1
case_images: A 50 year old male, chronic smoker, non hypertensive and non diabetic presented with unstable angina (Braunwald class IIIb2).Electrocardiogram showed normal sinus rhythm with upright T waves and no ST-T changes, but prominent inverted U waves in mid precordial leads (Figure 1a). Immediate post procedure ECG revealed remarkable disappearance of U waves (Figure 1b).
case_images: A Angiogram in Right anterior oblique cranial view showing tight stenosis in left anterior descending artery B  Post revascularization angiogram in Right anterior oblique cranial view showing TIMI 3 flow in left anterior descending artery
case_images: ipej050063-02b.jpg
case_images: PMC1502069_01_ipej050063-02b.jpg
case_images: F2
case_images: Coronary angiogram revealed a discrete tight stenosis (90%) in the mid left anterior descending artery (Figure 2a). Coronary angioplasty with stenting was successfully carried out (Figure 2b).