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Effect of sertraline on breathing in depressed patients without moderate-to-severe sleep-related breathing disorders. | LitMetric

Effect of sertraline on breathing in depressed patients without moderate-to-severe sleep-related breathing disorders.

Sleep Breath

Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, 510120, China.

Published: December 2015

Background: Previous studies have reported that selective serotonin reuptake inhibitors (SSRIs) might improve sleep-related breathing disorders (SRBDs). However, the effects of SSRIs on breathing are not evaluated in subjects without moderate-to-severe SRBDs. Further, many symptoms of depression and SRBDs overlap, and so, it is interesting whether there are interactions between breathing and psychopathologic symptoms during SSRI treatment for depression.

Methods: Data were taken from an open-label 8-week trial of sertraline in depressed patients with insomnia (n = 31). The depressed patients were administered 50 mg sertraline at 8 AM on the first day, and the dosage was subsequently titrated up to a maximum of 200 mg/day during the 8-week trial. All the patients were tested by repeated polysomnography (PSG) (baseline, 1st day, 14th day, 28th day, and 56th day). Sleep-disordered breathing events were categorized as apneas, hypopneas, and respiratory event-related arousals (RERAs).

Results: The clinical responses and PSG characteristics improved continuously during the 8-week trial. From the 14th day on, the RERA index during all-night and non-rapid eye movement (NREM) sleep became stable and significantly higher than baseline and the first day (RERA index 7.3 ± 2.2 at baseline, 7.3 ± 2.5 on the 1st day, 4.4 ± 1.9 on the 14th day, 3.9 ± 1.3 on the 28th day, 4.2 ± 2.0 on the 56th day, F = 5.71, P = 0.02; NREM-RERA index 6.2 ± 2.0 at baseline, 6.3 ± 2.3 on the 1st day, 3.2 ± 1.5 on the 14th day, 3.5 ± 0.9 on the 28th day, 3.2 ± 1.7 on the 56th day, F = 4.92, P = 0.03). Additionally, the NREM-apnea index showed a similar pattern to that of the RERA index and reached a significant difference between baseline (1.0 ± 0.5) and the 14th day (0.5 ± 0.4) (KW = 4.28, P = 0.047). Compared to the no-improvement group, the improvement group with a decreasing score rate of the respiratory disturbance index (RDI) greater than or equal to -50 % had a more positive decreasing score rate of slow wave sleep (SWS) (439.0 ± 78.2 vs 373.2 ± 77.9 %, T = 3.46, P = 0.04) and a more negative decreasing score rate on the arousal index (-43.7 ± 16.7 vs -26.6 ± 9.7 %, T = 9.16, P = 0.01), Pittsburgh Sleep Quality Index (PSQI) scores (-65.1 ± 33.7 vs -49.6 ± 21.4 %, T = 4.74, P = 0.05), and Epworth Sleepiness Scale (ESS) scores (-55.7 ± 21.3 vs -36.4 ± 17.5 %, T = 6.44, P = 0.02).

Discussion: This research indicates that SRBDs could be improved to some extent by sertraline treatment, which might be more common in patients with relatively more severe sleep-disordered breathing (e.g., RDI ≥ 10 in the current study). Although the sertraline-induced SRBD improvement seems not to have a significant clinical effect, the SRBD improvement group with decreasing score rate of RDI greater than or equal to -50 % has better subjective and objective sleep aspects than the no-improvement group. Thus, the fact that the SRBDs' improvement was related to SSRIs might have a potential clinical benefit in the antidepressant treatment.

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Source
http://dx.doi.org/10.1007/s11325-015-1152-8DOI Listing

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