Abstract P365: Effects of a Health Partner Intervention on Arterial Health
Introduction: Lifestyle modification is effective for cardiovascular disease prevention. Whether lifestyle intervention also preserves vascular health is less clear. Our study examined the role of a Health Partner-administered lifestyle intervention on vascular function.
Hypothesis: Lifestyle intervention improves and preserves vascular function.
Methods: A total of 711 university employees (48±11 years, 66% women, 22.5% Black) enrolled in a program that promoted healthier lifestyles at Emory University. Participants collaborated with a Health Partner to generate a personalized plan focused on achieving ideal health metrics. Anthropometric, laboratory and vascular function measurements were performed at baseline and at 1-year and 2-years of follow-up. Arterial stiffness was assessed by carotid-femoral pulse wave velocity and radial tonometry-derived central augmentation index. Microvascular function was assessed as digital reactive hyperemia index. Flow-mediated dilation was measured using ultrasound. The sample was divided into individuals within the lowest tertile and those in the upper two tertiles for vascular function at baseline. Paired t-test was used to assess the changes in vascular functions at 1 and 2 years of follow-up compared to baseline.
Results: At each of the 1-year and 2-year follow-up visits, vascular function improved in the group within the abnormal tertile at baseline. Flow-mediated dilation increased by 1.6% and 2.0% (P<0.001) respectively, pulse wave velocity decreased by 0.85 m/s and 0.93 m/s (P<0.001), central augmentation index was lower by 3.4 and 3.2 (P<0.001), and microvascular function assessed by reactive hyperemia index improved by 0.48 and 0.52 (P<0.001). In those within the upper two tertiles, pulse wave velocity did not significantly change, but flow-mediated dilation and reactive hyperemia index showed significant decline at 2 years of follow up.
Conclusion: A personalized, goal directed Health Partner intervention was associated with better vascular stiffness, endothelial and microvascular function in those with baseline abnormal values. These effects were evident at 1 year following enrollment and were sustained for 2 years. Whether the impact of Health Partner intervention on vascular function improves long-term morbidity and mortality needs further investigation in a controlled design.
Author Disclosures: H. Mohamed Kelli: None. R. Heinl: None. J. Hajjari: None. S. Noreen: None. Y. Ko: None. M. Hammadah: None. A. Samman-Tahhan: None. P. Sandesara: None. T. Alghamdi: None. K. Chivukula: None. F. Corrigan: None. I. Al Mheid: None. T. Ziegler: None. G. Gibson: None. M. Lampl: None. K. Brigham: None. V. Vaccarino: None. G. Martin: None. A.A. Quyyumi: None.
- © 2017 by American Heart Association, Inc.