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Copyright ©The Author(s) 2021.
World J Cardiol. Oct 26, 2021; 13(10): 533-545
Published online Oct 26, 2021. doi: 10.4330/wjc.v13.i10.533
Figure 6
Figure 6 ECG of a patient with chronic lung disease showing precordial QRS changes suggestive of emphysema—poor R wave progression, R < 0. 5 mv in lead V6, R/S < 1 in lead V6 and S wave > 5 mm in leads V5-6. Also note—P-pulmonale, lead I sign and negative P in aVL. Adapted from Burns[40].