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Correlations Between Endothelial Function and Right Ventricular Performance in Primary Hypertension
Lu Wang1,2, Feng Gan1, Yu Tong Yan3
1Department of Cardiology, Beijing Aerospace General Hospital, Beijing, China.
Insights
Endothelial function impacts right ventricular performance in newly diagnosed hypertension patients. Better endothelial function correlates with improved cardiac function, suggesting a link between vascular health and heart performance.
Area of Science:
- Cardiology
- Vascular Biology
- Hypertension Research
Background:
- Primary (essential) grade 1 hypertension is common.
- Endothelial dysfunction is an early sign of cardiovascular disease.
- The relationship between endothelial function and cardiac parameters in early hypertension requires further investigation.
Purpose of the Study:
- To investigate the correlation between endothelial function and cardiac structure/function in patients with newly diagnosed grade 1 hypertension.
- To assess if endothelial function influences cardiac performance metrics.
- To explore the association between flow-mediated dilation (FMD) and echocardiographic findings.
Main Methods:
- Retrospective review of 109 patients with grade 1 hypertension.
- Echocardiography to assess cardiac structure and function.
- Flow-mediated dilation (FMD) testing in 34 patients to evaluate endothelial function.
Main Results:
- No significant baseline demographic differences between normal and reduced FMD groups.
- Age negatively correlated with FMD, indicating reduced endothelial function in older individuals.
- Normal endothelial function group showed better systolic/diastolic parameters and lower right ventricular Tei index compared to the reduced function group.
Conclusions:
- Endothelial function is linked to right ventricular performance in grade 1 hypertension.
- Improved endothelial function is associated with better overall cardiac performance.
- Further research is needed to confirm findings and elucidate hypertension's independent effects.
Background:
This study aims to elucidate the correlation between endothelial function and both cardiac structure and function in patients newly diagnosed with primary (essential) grade 1 hypertension.
Methods:
We retrospectively reviewed clinical and echocardiographic data from 109 patients attending a cardiology outpatient clinic from January to December 2022. All subjects underwent comprehensive laboratory tests including lipid profile, glucose, electrolytes, and high-sensitivity C-reactive protein, alongside echocardiography to assess cardiac function. A subset of 34 patients underwent flow-mediated dilation (FMD) testing to evaluate endothelial function, and the results categorized them into normal (FMD ≥ 6%) and reduced (FMD < 6%) endothelial function groups.
Results:
The study found no significant differences in baseline demographic or clinical parameters between groups. Age was negatively correlated with FMD values, indicating decreased endothelial function with advancing age. The normal endothelial function group demonstrated better diastolic and systolic parameters and lower right ventricular Tei indices compared to the reduced function group. Additionally, there was a significant negative correlation between the right ventricular Tei index and FMD values.
Conclusions:
Endothelial function is associated with right ventricular performance in patients with primary (essential) grade 1 systemic hypertension. Improved endothelial function is associated with better overall cardiac performance. Further studies with age-matched controls are necessary to confirm these findings and determine the independent effects of hypertension on cardiac function.
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