Factors associated with right ventricular dysfunction among patients with pulmonary sarcoidosis

Introduction & Aim: Cardiac Autonomic Neuropathy (CAN) is a serious and common complication of diabetes. Meta-analyses of published data demonstrate that reduced cardiovascular autonomic function as measured by Heart Rate Variability (HRV) is strongly (i.e. relative risk is doubled) associated with an increased risk of silent myocardial ischemia and mortality. Despite its relationship to an increased risk of cardiovascular mortality and its association with multiple symptoms and impairments, the significance of CAN has not been fully appreciated and not studied in the Middle East population. Hence, we conducted a study to measure the HRV by R-R interval variability in diabetic patients to determine the incidence of autonomic neuropathy.