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Bioimpedance-Guided Diuretics and Cardiac Progression in Asymptomatic Heart Failure

Effect of Diuretic Treatment Based on Bioimpedance Analysis Measurements on Cardiac Progression in Patients With Asymptomatic Heart Failure: 1-Year Period, Longitudinal Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07801144
Enrollment
80
Registered
2026-09-03
Start date
2019-05-20
Completion date
2020-11-20
Last updated
2026-09-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heart Failure

Keywords

hypervolemia, renal failure,, Diuretic treatment, heart failure

Brief summary

It has not been clearly elucidated whether volume control with diuretics is essential at an early stage in patients with heart failure (HF). This prospective study aims to assess the effects of diuretic treatment in systolic HF patients who have no clinical signs of congestion but have hypervolemia as measured by bioimpedance analysis (BIA). The study compares the outcomes of patients receiving bioimpedance-guided diuretic therapy to maintain negative hydration versus those followed without diuretic therapy over a 1-year period.

Detailed description

Background and Objectives It has not been clearly elucidated whether volume control with diuretics is essential at an early stage in patients with heart failure (HF). The primary objective of this prospective study is to assess the effects of diuretic treatment in patients with systolic HF who exhibit no clinical signs of congestion but have hypervolemia as measured by bioimpedance analysis (BIA). Furthermore, the study aims to compare the clinical outcomes of these patients with a control group not receiving diuretic treatment. Methods This prospective study includes adult patients with systolic HF. The patients are assigned into two groups: Negative Hydration Group: Patients receive diuretic therapy and are maintained in a state of negative hydration according to BIA measurements. Positive Hydration Group: Patients are followed without diuretic therapy. All patients are followed for a total duration of 1 year, with clinical evaluations and BIA measurements repeated at 4-month intervals.

Interventions

None listed

Sponsors

Kayseri Training and Research Hospital
Lead SponsorOTHER_GOV

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients aged 18 years and older (regardless of gender) * Confirmed diagnosis of heart failure (newly diagnosed or previously under follow-up in the internal medicine or cardiology outpatient clinic) * Left ventricular ejection fraction (LVEF) \< 40% as determined by echocardiography * Patients who do not have hypervolemia detected on physical examination * Fluid volume status (overhydration \[OH\]) value greater than zero, as measured by bioimpedance analysis, thereby classifying them as hypervolemic for the study * Willingness to participate and ability to provide written informed consent prior to any study-related procedures

Exclusion criteria

* Patients under 18 years of age * Pregnant women * Patients with clinically evident decompensated heart failure requiring intravenous diuretic therapy * Presence of edema, hepatomegaly, or ascites upon physical examination

Design outcomes

Primary

MeasureTime frameDescription
Change in Fluid Volume StatusBaseline and 12 monthsEvaluation of the change in patient's fluid status (hydration/overhydration) measured via bioimpedance analysis (BIA) parameters.

Secondary

MeasureTime frameDescription
Change in Left Ventricular Ejection FractionBaseline and 12 monthsAssessment of cardiac progression by measuring the change in left ventricular ejection fraction percentage using transthoracic echocardiography.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 4, 2026