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  • Title: Heart rate and blood pressure resting levels and responses to generic stressors in Vietnam veterans with posttraumatic stress disorder.
    Author: Orr SP, Meyerhoff JL, Edwards JV, Pitman RK.
    Journal: J Trauma Stress; 1998 Jan; 11(1):155-64. PubMed ID: 9479684.
    Abstract:
    Resting heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) were measured on 3 successive mornings in the homes of drug-free Vietnam combat veterans, classified on the basis of DSM-III-R criteria into current posttraumatic stress disorder (PTSD; n = 20) or non-PTSD (n = 15). Responses to three generic stressor challenges (orthostatic, mental arithmetic, and cold pressor) were also measured. In the orthostatic stressor condition, DBP increased over time in the non-PTSD, but not in the PTSD, veterans, suggesting a paradoxically reduced autonomic response in PTSD. There were no other significant group differences in resting levels or responses to any of the challenges for any measure.
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