Spontaneous mediastinal emphysema with acute right ventricular strain

Mediastinal emphysema: aetiology, diagnosis, and treatment.

“…The electrocardiogram in most cases of mediastinal emphysema is within normal limits (Aisner and Franco, 1949;Klein, 1947). About 25% of patients show non-specific changes such as T wave inversion, ST segment deviation, decreased voltage, and shifts in the electrical axis (Littmann, 1946).…”