Effects of Lifestyle Modification on Patients With Resistant Hypertension: Results of the TRIUMPH Randomized Clinical Trial

Autor: Patrick Smith, Pao-Hwa Lin, Linda W. Craighead, Andrew Sherwood, Stephanie Mabe, James A. Blumenthal, Lawrence Liao, Crystal C. Tyson, Krista K. Ingle, Alan L. Hinderliter, Lana L. Watkins, William E. Kraus
Rok vydání: 2021
Předmět:
Zdroj: Circulation
ISSN: 1524-4539
Popis: Background: Although lifestyle modifications generally are effective in lowering blood pressure (BP) among patients with unmedicated hypertension and in those treated with 1 or 2 antihypertensive agents, the value of exercise and diet for lowering BP in patients with resistant hypertension is unknown. Methods: One hundred forty patients with resistant hypertension (mean age, 63 years; 48% female; 59% Black; 31% with diabetes; 21% with chronic kidney disease) were randomly assigned to a 4-month program of lifestyle modification (C-LIFE [Center-Based Lifestyle Intervention]) including dietary counseling, behavioral weight management, and exercise, or a single counseling session providing SEPA (Standardized Education and Physician Advice). The primary end point was clinic systolic BP; secondary end points included 24-hour ambulatory BP and select cardiovascular disease biomarkers including baroreflex sensitivity to quantify the influence of the baroreflex on heart rate, high-frequency heart rate variability to assess vagally mediated modulation of heart rate, flow-mediated dilation to evaluate endothelial function, pulse wave velocity to assess arterial stiffness, and left ventricular mass to characterize left ventricular structure. Results: Between-group comparisons revealed that the reduction in clinic systolic BP was greater in C-LIFE (–12.5 [95% CI, –14.9 to –10.2] mm Hg) compared with SEPA(–7.1 [–95% CI, 10.4 to –3.7] mm Hg) ( P =0.005); 24-hour ambulatory systolic BP also was reduced in C-LIFE (–7.0 [95% CI, –8.5 to –4.0] mm Hg), with no change in SEPA (–0.3 [95% CI, –4.0 to 3.4] mm Hg) ( P =0.001). Compared with SEPA, C-LIFE resulted in greater improvements in resting baroreflex sensitivity (2.3 ms/mm Hg [95% CI, 1.3 to 3.3] versus –1.1 ms/mm Hg [95% CI, –2.5 to 0.3]; P 2 [95% CI, 0.2 to 0.6] versus –0.2 ln ms 2 [95% CI, –0.5 to 0.1]; P P =0.022). There were no between-group differences in pulse wave velocity ( P =0.958) or left ventricular mass ( P =0.596). Conclusions: Diet and exercise can lower BP in patients with resistant hypertension. A 4-month structured program of diet and exercise as adjunctive therapy delivered in a cardiac rehabilitation setting results in significant reductions in clinic and ambulatory BP and improvement in selected cardiovascular disease biomarkers. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT02342808.
Databáze: OpenAIRE