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Sleep disturbance and baroreceptor sensitivity in women with posttraumatic stress disorder

✍ Scribed by Christi S. Ulmer; Patrick S. Calhoun; Jack D. Edinger; H. Ryan Wagner; Jean C. Beckham

Publisher
Springer
Year
2009
Tongue
English
Weight
74 KB
Volume
22
Category
Article
ISSN
0894-9867

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✦ Synopsis

In a previous study, women with posttraumatic stress disorder (PTSD) had greater objective sleep disturbance than those without PTSD. In a separate previous study, women with PTSD were also found to have lower baroreceptor sensitivity (BRS), an index of blood pressure regulation. In the present study, the authors concurrently assessed BRS and objective sleep by diagnostic status. A comparison of 32 women with PTSD with 21 women without PTSD revealed an interaction between BRS and sleep efficiency, wake after sleep onset percentage, and sleep fragmentation. Lower BRS was associated with poorer sleep in women with PTSD, but not in those without. Future research should investigate causal relationships between sleep and blood pressure regulation in those with PTSD.

Research on posttraumatic stress disorder-(PTSD-) associated health conditions is often focused on the physiological sequelae of prolonged stress. Although mechanisms are unclear, associations between PTSD and degraded health have been reported in numerous studies , including some suggesting cardiovascular manifestations of PTSD . Baroreceptor sensitivity (BRS), a measure of parasympathetic cardiac functioning, is an index of the body's ability to regulate blood pressure. In a sample of women with a range of trauma histories, those with PTSD had lower resting BRS than women without PTSD . Recently, evidence was presented for a relationship between PTSD and cardiac outcomes: Vietnam veterans with PTSD were twice as likely to have

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