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Updated: Dec 31, 2025

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
Blood pressure and heart failure
1Cardiovascular Center & Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, South Korea.
Insights
Hypertension management is crucial for preventing heart failure. While current guidelines suggest a blood pressure target near 130/80 mmHg for heart failure patients, further research is needed to confirm optimal targets.
Area of Science:
- Cardiology
- Hypertension Research
- Heart Failure Management
Background:
- Hypertension is a major global risk factor for cardiovascular diseases, stroke, and mortality.
- It is often underdiagnosed and undertreated, contributing to significant public health burden.
- Sustained high blood pressure can lead to left ventricular hypertrophy and diastolic dysfunction, increasing myocardial rigidity.
Purpose of the Study:
- To review the importance of blood pressure control in preventing heart failure progression.
- To discuss the complexities of blood pressure management in patients with established heart failure, particularly those with preserved ejection fractions.
- To highlight the need for evidence-based optimal blood pressure targets in heart failure.
Main Methods:
- Review of existing literature and current clinical guidelines on hypertension and heart failure.
- Analysis of the potential risks associated with aggressive blood pressure lowering in heart failure.
- Examination of the 'reverse J-curve' phenomenon in relation to blood pressure and outcomes in heart failure.
Main Results:
- Adequate blood pressure control is essential to prevent the progression of hypertension to overt heart failure.
- Blood pressure management is also vital in established heart failure, especially with preserved ejection fractions.
- A potential 'reverse J-curve' association suggests that overly aggressive blood pressure reduction may lead to adverse outcomes in heart failure patients.
Conclusions:
- Current guidelines suggest a blood pressure target near 130/80 mmHg for heart failure patients.
- Robust evidence regarding the optimal blood pressure target in heart failure remains limited.
- Prospective studies are necessary to definitively determine the ideal blood pressure targets for patients with heart failure.
Background:
Hypertension is a leading cause of cardiovascular disease, stroke, and death. It affects a substantial proportion of the population worldwide, and remains underdiagnosed and undertreated.
Body:
Long-standing high blood pressure leads to left ventricular hypertrophy and diastolic dysfunction that cause an increase in myocardial rigidity, which renders the myocardium less compliant to changes in the preload, afterload, and sympathetic tone. Adequate blood pressure control must be achieved in patients with hypertension to prevent progression to overt heart failure. Controlling blood pressure is also important in patients with established heart failure, especially among those with preserved ejection fractions. However, aggressive blood pressure lowering can cause adverse outcomes, because a reverse J-curve association may exist between the blood pressure and the outcomes of patients with heart failure. Little robust evidence exists regarding the optimal blood pressure target for patients with heart failure, but a value near 130/80 mmHg seems to be adequate according to the current guidelines.
Conclusion:
Prospective studies are required to further investigate the optimal blood pressure target for patients with heart failure.
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