Tag Archives: ECG changes

Yamamoto et al. highlighted multiple distinct ECG manifestations including phasic voltage variation, P-pulmonale and vertical P-wave axis.1 Our case, recently published in the Journal of Electrocardiology,2 also reported similar unique ECG changes, but in a smaller right-sided pneumothorax. We recognised a new vertical P-wave axis, increased P-wave amplitude in the inferior leads (which did not fluctuate on deep inspiration) and ST-elevation in V1–V2. All ECG changes resolved following decompression with an intercostal drain. The mechanism behind these ECG manifestations is not entirely clear. It has been suggested the right-sided pneumotho