Related Experiment Video
Updated: Aug 29, 2025

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Plasma D-dimer levels are correlated with disease severity among hypertensive patients: A comparative cross-sectional
Yanli Long1, Yi Li1, Litao Zhang2
1Heart Center, Wuhan Asia Heart Hospital Affiliated Wuhan University of Science and Technology, Wuhan, China.
Insights
Hypertension (HTN) is linked to increased thrombus formation. This study found higher D-dimer levels in hypertensive patients, correlating with disease severity and aiding in complication diagnosis.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Clinical Biochemistry
Background:
- Inappropriate acute thrombus formation is implicated in hypertension-related organ damage.
- The correlation between hypertension severity and D-dimer levels requires further characterization.
Purpose of the Study:
- To assess plasma D-dimer levels in hypertensive patients.
- To investigate the correlation between D-dimer levels and hypertension severity.
Main Methods:
- A comparative cross-sectional study involving 60 hypertensive patients and 40 controls.
- Statistical analyses included correlation coefficients, regression analysis, and parametric/nonparametric tests.
Main Results:
- Hypertensive patients exhibited significantly higher D-dimer levels compared to controls (P < .001).
- D-dimer levels increased significantly with hypertension severity (P < .001).
- D-dimer demonstrated an 86.9% diagnostic power for differentiating complicated from uncomplicated hypertension at a 0.83 mg/L cutoff.
Conclusions:
- Elevated D-dimer levels are associated with hypertension.
- D-dimer levels correlate with hypertension severity, suggesting a role for hypercoagulability in hypertensive thromboembolic complications.
Abstract:
It has been reported that inappropriate acute thrombus formation is the pathophysiological substrate underlying increased risk and severity of target organ damage in hypertension (HTN). However, the relationship between severity of HTN and D-dimer has not been well characterized. The study was aimed to assess plasma D-dimer level and its correlation with disease severity among hypertensives. A comparative cross-sectional study was conducted at Wuhan Asia Heart Hospital among 100 participants (60 hypertensives and 40 controls). The correlation between variables were determined using correlation coefficients, regression analysis, and also using different parametric and nonparametric tests. We observed higher D-dimer levels among hypertensives compared to the healthy controls (P < .001). The D-dimer levels were found to be increased significantly with the severity of HTN (P < .001). D-dimer was found to have a diagnostic power of 86.9% in differentiating complicated from uncomplicated HTN at 0.83 mg/L cutoff value. This study suggests that D-dimer level was higher among hypertensives than control groups and it was also increasing significantly with the severity of HTN. This suggests that hypercoagulability of fibrin plays a role in the occurrence of thromboembolic complications of hypertensive patients.
More Related Videos
Related Concept Videos
Hypertension III: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.

