Complex sentence: Left ventricular failure is, in turn, the most common cause of right ventricular dilation, other common causes of right ventricular dilation include right ventricular infarction, inferior myocardial infarction and cor pulmonale.
Split into simpler sentences: Left ventricular failure is, in turn, the most common cause of right ventricular dilation. Other common causes of right ventricular dilation include right ventricular infarction, inferior myocardial infarction and cor pulmonale.