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Blutwerte · Marker
NT-proBNP
N-terminal pro-BNP · NT-pro-B-type Natriuretic Peptide · BNP
Herzmarker
- Einheit:
- pg/mL
NT-proBNP measures the concentration of N-terminal pro-B-type natriuretic peptide, a marker of cardiac stress and heart failure.
Reference Ranges
Reference
0–125pg/mL
0
125
LowNormalHigh
Reference
Unit · pg/mLReference ranges can vary with age and renal function.
Overview
Übersicht
NT-proBNP, or N-terminal pro-B-type natriuretic peptide, is a biomarker that reflects cardiac stress and is primarily used to assess heart failure. It is a cleavage product of the prohormone BNP, released by cardiac myocytes in response to ventricular volume expansion and pressure overload. Clinically, NT-proBNP is crucial for diagnosing and managing heart failure, providing prognostic information, and guiding treatment strategies, especially in acute decompensated heart failure (ADHF). It is also used in assessing the risk of cardiovascular events in asymptomatic patients with conditions like severe aortic stenosis. For athletes and biohackers, NT-proBNP may be monitored to evaluate cardiac function under stress, though its role in enhancing performance or longevity is less clear. Elevated levels can indicate cardiac strain, which might be relevant in endurance sports. However, NT-proBNP levels can be influenced by factors such as age, renal function, and body mass index, which can confound results. It is not typically affected by fasting or time of day, but acute physical exertion can temporarily elevate levels. Therefore, interpreting NT-proBNP levels requires careful consideration of these variables to avoid misdiagnosis.
Klinische Bedeutung
Elevated NT-proBNP levels indicate cardiac stress and are associated with heart failure, increased risk of cardiovascular events, and poor prognosis. Reduced levels generally suggest a lower risk of these conditions.
Dynamics
Trend Interpretation
Rising Values
Progressively rising NT-proBNP suggests worsening cardiac function or heart failure. Re-test within 4 weeks if levels are outside the optimal range.
Falling Values
Falling values indicate improving cardiac function or effective treatment.
Re-test Interval
4 weeks if outside optimal range
Etiology
Causes — High & Low
Cause
Elevated Levels
- Heart failure
- Acute coronary syndrome
- Renal insufficiency
- Pulmonary hypertension
- Aortic stenosis
Cause
Low Levels
- Effective heart failure treatment
- Low cardiac stress
- Younger age
- Lower body mass index
- Good renal function
Protocol
How to Optimize
Lever
Nutrition
- Low-sodium diet
- Increased fruit and vegetable intake
Note:
Consult a healthcare provider for personalized advice, especially if heart disease is suspected.
Testing Guidelines
✓Fasting Not Required
✓Not Time-Sensitive
Testing Frequency
Annually for those at risk of heart failure, more frequently if symptomatic.
Interfering Factors
- Renal impairment
- Obesity
- Recent intense exercise
Related Peptides & Hormones
Bnp
hormone or peptideDirectly measures
Open Research Questions
Current research suggests that the relationship between NT-proBNP levels and clinical outcomes in asymptomatic patients with severe aortic stenosis remains debated, particularly regarding optimal reference ranges and the impact of confounding factors. Researchers have not yet established the precise role of NT-proBNP in guiding treatment decisions in Takayasu arteritis or its comparative efficacy in diagnosing cardioembolic versus non-cardioembolic strokes. Unanswered clinical questions include the optimal timing for intervention based on NT-proBNP levels in various patient populations.
23 Research Publications
234
Total Citations
10
Human/RCT
2.4
Avg. Influence
2024
Latest
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Filter
01Top
#01
N-Terminal B-type Natriuretic Peptide in Heart Failure.
HumanInfluence1.0
59
This study focused on the diagnostic and prognostic value of NT-proBNP in heart failure patients. Researchers found that NT-proBNP is a critical biomarker for assessing cardiac status and refining risk stratification, particularly in acute decompensated heart failure.
02Top
#02
Evidence based application of BNP/NT-proBNP testing in heart failure.
ReviewInfluence2.0
50
This review summarized systematic reviews on the application of B-type natriuretic peptides, including NT-proBNP, in heart failure. Researchers found that these biomarkers are useful for diagnosis and prognosis, but further questions remain regarding their implementation in clinical practice.
03Top
#03
NT-proBNP in Different Patient Groups of COPD: A Systematic Review and Meta-Analysis.
Meta-AnalysisInfluence6.0
34
Researchers conducted a systematic review to evaluate NT-proBNP levels in COPD patients. They found that NT-proBNP levels were significantly higher in patients with acute exacerbations and those with severe COPD, indicating its potential role in assessing cardiovascular stress.
04
#04
Detection of cardioembolic stroke with B-type natriuretic peptide or N-terminal pro-BNP: a comparative diagnostic meta-analysis.
Meta-AnalysisInfluence2.0
31
This meta-analysis compared the diagnostic efficacy of BNP and NT-proBNP in detecting cardioembolic stroke. Researchers found that while both biomarkers showed similar overall diagnostic accuracies, BNP had superior sensitivity, whereas NT-proBNP demonstrated higher specificity.
05
#05
Angiotensin Receptor-Neprilysin Inhibitors and the Natriuretic Peptide Axis.
ReviewInfluence1.0
18
Researchers reviewed the effects of angiotensin receptor neprilysin inhibitor (ARNI) therapy on natriuretic peptides, including NT-proBNP. They found that ARNI therapy decreases NT-proBNP levels while maintaining prognostic accuracy for cardiovascular outcomes.
06
#06
Biomarkers in Takayasu arteritis.
Wen Dan, et al. · International journal of cardiology · 2023
Review
14
This review explored various biomarkers, including NT-proBNP, in the context of Takayasu arteritis, a rare large vasculitis. Researchers found that these biomarkers are valuable for early diagnosis, assessing disease activity, and guiding treatment options, indicating their significant clinical application in managing the condition.
Key findings
- 01Researchers observed that Takayasu arteritis involves complex interactions between immune system components and inflammation.
- 02They identified several biomarkers, including cytokines and autoantibodies, that may help in understanding the disease.
- 03The study highlights the need for further research to clarify the role of these biomarkers in Takayasu arteritis.
07
#07
Cardiac Biomarkers in Patients With Asymptomatic Severe Aortic Stenosis: Analysis From the EARLY TAVR Trial.
Human
10
This study examined the role of NT-proBNP and hs-cTnT biomarkers in patients with asymptomatic severe aortic stenosis undergoing early transcatheter aortic valve replacement (TAVR). Researchers found that higher levels of these biomarkers were associated with increased event rates, but the benefit of early TAVR was more pronounced in patients with lower biomarker levels, suggesting limited value for single measurements in guiding treatment timing.
08
#08
The Indian Consensus Document on cardiac biomarker.
Review
5
This study examined the role of cardiac biomarkers in diagnosing and managing heart failure in India. Researchers found that biomarkers can indicate the presence and severity of congestive heart failure (CHF) and may provide clinical benefits compared to conventional assessments.
09
#09
Analytical and clinical performance evaluation of a new NT-proBNP assay.
Human
4
Researchers evaluated a new NT-proBNP assay's performance in a healthy population in China, establishing age and sex-specific reference ranges. They found the assay performed well, with high sensitivity and specificity, suggesting it is suitable for clinical applications.
10
#10
NT-proBNP as a neuroendocrine tumor biomarker: beyond heart failure.
Case Report
4
This study investigated NT-proBNP concentrations in patients with neuroendocrine tumors (NETs). Researchers found that NT-proBNP levels correlated with disease progression and higher tumor burden, suggesting its utility in monitoring NETs.
Publication Trend
Research publications about NT-proBNP over time
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