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Study on the evaluation of left atrial structure and function in patients with H-type hypertension using 4D automated
Xu Huang1, Xiaolin Wang1, Shuangyi Cao1
1Department of Ultrasound, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 1, Minde Road, Donghu District, Nanchang, Jiangxi, 330006, People's Republic of China.
Insights
H-type hypertension is linked to reduced left atrial function, with higher homocysteine levels worsening this strain. These findings suggest left atrial strain parameters may indicate early myocardial injury in these patients.
Area of Science:
- Cardiology
- Hypertension Research
- Biomarker Discovery
Background:
- H-type hypertension presents unique challenges in cardiovascular health.
- Assessing left atrial structure and function is crucial for understanding hypertensive heart disease.
- The role of serum homocysteine (Hcy) in left atrial dysfunction requires further investigation.
Purpose of the Study:
- To evaluate left atrial structure and function in patients with H-type hypertension using 4D Auto LAQ.
- To determine the impact of serum homocysteine levels on the left atrium in primary hypertension.
- To identify potential early indicators of left atrial myocardial injury.
Main Methods:
- Utilized four-dimensional automated left atrial quantitative analysis (4D Auto LAQ) technology.
- Enrolled 173 newly diagnosed primary hypertension patients (85 H-type, 88 non-H-type) and 60 healthy controls.
- Analyzed serum homocysteine, lipid profiles, eGFR, uric acid, and left atrial strain parameters (LASr, LASct, LASr-c, LASct-c).
Main Results:
- H-type hypertension group showed significant differences in Hcy, cholesterol, triglycerides, eGFR, and uric acid compared to controls.
- Patients with H-type hypertension exhibited decreased left atrial strain parameters (LASr, LASct, LASr-c, LASct-c).
- Elevated plasma Hcy levels were independently associated with reduced left atrial strain parameters.
Conclusions:
- H-type hypertension is associated with impaired left atrial strain.
- Increasing serum Hcy levels correlate with worsening left atrial strain dysfunction.
- Left atrial strain parameters may serve as early biomarkers for myocardial injury in H-type hypertension.
Background:
This study employed four-dimensional automated left atrial quantitative analysis (4D Auto LAQ) technology to assess left atrial structure and function in patients with H-type hypertension and to investigate the impact of serum homocysteine (Hcy) level on the left atrium in patients with primary hypertension.
Methods:
A total of 173 patients with primary hypertension newly diagnosed between December 2023 and December 2024 were enrolled and divided into two groups: H-type hypertension (n = 85) and non-H-type hypertension (n = 88). Additionally, 60 healthy volunteers were recruited as the control group.
Results:
The results showed that compared with the non-H-type hypertension group and the control group, the H-type hypertension group exhibited statistically significant differences in Hcy, total cholesterol, triglycerides, estimated glomerular filtration rate (eGFR), and uric acid (p < 0.05). Additionally, there was a decrease (p < 0.05) in left atrial reservoir systolic longitudinal strain (LASr), left atrial systolic longitudinal strain (LASct), left atrial reservoir systolic circumferential strain (LASr-c), and left atrial systolic circumferential strain (LASct-c). Multiple linear regression analysis identified plasma Hcy levels as an independent associated factor for decreased left atrial strain parameters, including LASr (β=-0.246, p < 0.001), LASct (β=-0.279, p < 0.001), LASr-c (β=-0.333, p < 0.001), and LASct-c (β=-0.303, p < 0.001).
Conclusions:
In conclusion, patients with H-type hypertension have decreased left atrial strain parameters, and when serum Hcy levels rise, the degree of strain dysfunction gradually gets worse. This suggests that these parameters could be used as an early indicator of left atrial myocardial injury in patients with H-type hypertension.
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