1. Prevention of Heart Failure in Hypertension-the Role of Coronary Heart Disease Events Treated With Versus Without Revascularization: The ALLHAT Study.
- Author
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Chen V, Davis BR, Kapadia SR, Kattan MW, and Tereshchenko LG
- Subjects
- Humans, Male, Female, Aged, Incidence, Coronary Disease epidemiology, Coronary Disease prevention & control, Middle Aged, Follow-Up Studies, Amlodipine therapeutic use, Risk Factors, United States epidemiology, Lisinopril therapeutic use, Treatment Outcome, Heart Failure epidemiology, Myocardial Revascularization statistics & numerical data, Antihypertensive Agents therapeutic use, Hypertension epidemiology, Hypertension drug therapy, Hypertension complications
- Abstract
In modern clinical practice, less than half of patients with new-onset heart failure (HF) undergo ischemic evaluation and only a minority undergo revascularization. We aimed to assess the proportion of the effect of hypertension (antihypertensive treatment) on incident HF to be eliminated by prevention of coronary heart disease (CHD) event treated with or without revascularization, considering possible treatment-mediator interaction. The causal mediation analysis of Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT) included 42,418 participants (age 66.9 ± 7.7, 35.6% black, 53.2% men). A new CHD event (myocardial infarction or angina) that occurred after randomization but before the incident HF outcome was the mediator. Incident symptomatic congestive HF (CHF) and hospitalized/fatal HF (HHF) were the primary and secondary outcomes, respectively. Logistic regression (for mediator) and Cox proportional hazards regression (for outcome) were adjusted for demographics, cardiovascular disease history, and risk factors. During a median 4.5-year follow-up, 2,785 patients developed CHF, including 2,216 HHF events. Participants who developed CHD events had twice the higher incidence rate of CHF than CHD-free (28.5 vs 13.9 events/1,000 person-years). The proportion of reference interaction indicating direct harm because of a CHD event for lisinopril (234% for CHF, 355% for HHF) and amlodipine (244% for CHF, 468% for HHF) was greater than for chlortalidone (143% for CHF, 269% for HHF). In patients with revascularized CHD events, chlortalidone and amlodipine eliminated 21% to 24% and lisinopril eliminated -45% of HHF. Antihypertensive treatment could not eliminate harm from CHD events treated without revascularization. In conclusion, the antihypertensive drugs (chlortalidone, lisinopril, and amlodipine) prevent HF not principally by preventing CHD events but by way of other pathways. HF is moderated but not mediated by CHD events. Revascularization of CHD events is paramount for HF prevention., Competing Interests: Declaration of competing interest The authors have no competing interests to declare., (Copyright © 2024 Elsevier Inc. All rights reserved.)
- Published
- 2024
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