Nursing Commons^™

Military Sexual Trauma Exposure And Heart Rate Variability Outcomes In Female Veterans, Elizabeth Ann Davis Lee

Theses and Dissertations (ETD)

Area of Investigation and Hypothesis: Decreased heart rate variability (HRV) has been used as a predictor of cardiac and all-cause mortality. Studies have documented decreased HRV in a variety of conditions, including posttraumatic stress disorder (PTSD), depression, age, coronary artery disease (CAD), diabetes mellitus (DM), and tobacco use but improvement with beta blocker (BB) treatment. No prior study evaluated the relationship between military sexual trauma (MST) exposure and HRV outcomes. The hypothesis of this study was that female veterans exposed to MST would have lower time domain HRV measures than a reference cohort reporting non-exposure. Methods and Procedures: Electronic medical …

The Effects Of Glucose Tolerance, Hypertension, And Race On Heart Rate Variability, Qt Interval Duration, And Left Ventricular Hypertrophy In Overweight-Obese Adolescents, Shirleatha T. Lee

Theses and Dissertations (ETD)

The prevalence of childhood obesity has increased remarkably within the past ten years with black youth disproportionately affected. Childhood obesity is linked to cardiovascular risk. Purposes of this study were to explore relationships between cardiac autonomic risk factors of heart rate variability (HRV), QT corrected (QTc) Interval duration, and Cornell voltage measures for left ventricular hypertrophy (LVH) to body mass index (BMI), relative body mass index (RBMI), and blood pressure (BP) measures, and to examine the effects of impaired glucose tolerance (IGT), hypertension, and race on these cardiac autonomic risk factors in overweight-obese adolescents.

Methods: Overweight and obese adolescents (N …

Measurement Of Autonomic Function In Renal Disease And Diabetes, Ann King Cashion

Theses and Dissertations (ETD)

Renal disease and diabetes lead to dysautonomia resulting in consequences ranging from gastroparesis to sudden death. New technologies to detect dysautonomia, such as 24-hr heart rate variability, are being evaluated and compared to traditional evoked tests. These advances have, however, lead to a lack of standardization in testing batteries, procedures, and reporting formats. This series of 3 studies psychometrically assessed measures of autonomic function (AF) and explored relationships among objective and subjective measures in healthy adults and uremic patients. Participants underwent evoked tests that included change in heart rate with deep breathing and Valsalva. In addition, measures of 24-hr HRV …