Chest. 2005;128:1304-1309
Objective: To assess the reversibility of symptoms of depression using continuous positive airway pressure (CPAP) in patients with obstructive sleep apnea (OSA).
Patients/methods: Patients referred to our center for evaluation of OSA who had a respiratory disturbance index (RDI) 15 and who demonstrated a significant response to CPAP ( 50% drop in RDI) were evaluated for the symptoms of depression using the Beck Depression Inventory (BDI), and then reassessed after 4 to 6 weeks of treatment with CPAP at home.
Results: In this group of patients, the institution of CPAP therapy resulted in a significant (p < 0.0001) decrease in those symptoms of depression as assessed by the BDI (BDI at baseline, 4.1 ± 3.7; BDI after CPAP, 1.0 ± 2.0). This change in BDI was noted both in those individuals who had received an antidepressant prescription prior to referral, and in those who had not. An analysis of variance failed to reveal any effect on these data related to gender or baseline RDI.
Conclusions: Patients with OSA may present to their primary care physician with symptoms suggesting a diagnosis of depression. In some of these individuals, the symptoms of depression may be ameliorated with CPAP.
My emphasis.Introduction
We noted that a substantive number of the individuals referred to our center for evaluation of obstructive sleep apnea (OSA) had been prescribed antidepressant medication prior to referral. In a preliminary review of 114 consecutive cases referred to our center, 45 patients (39%) were receiving antidepressant medication at the time of referral. When evaluated with the Beck Depression Inventory (BDI) [BDI-Fast Screen for Medical Patients; The Psychological Corporation; San Antonio, TX],1 we found that 41% of these patients had a score suggesting at least mild symptoms of depression, and 12% had a score suggesting moderate-to-severe symptoms of depression.
PUblished in 2005 - It takes time for knowledge to spread.
Maybe sometime in the future, a home based sleep diagnosis will be the first step in diagnosing people who comlain of fatigue and depression. And hopefully soon more psychiatrists and psychologist will be taught about sleep apnea as part of their training.
O.