Right ventricular diastolic dysfunction might correlate with body mass index as well as with AHI in patients with obstructive sleep apnea syndrome

In the manuscript, au -thors clearly demonstrate that right ventricular dysfunction is anearly phenomenon, which begins before the development of heartfailure and pulmonary hypertension, in patients with obstructivesleep apnea (OSAS). Li and co-workers also showed that this ven-tricular dysfunction positively correlated with the degree of OSAS,expressed in terms of apnea hypopnea index (AHI).1 In other words,increased levels of AHI significantly correlated with an impairmentof right ventricular dysfunction.