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A study of lipid levels in uncomplicated hypertension
1Heart Hospital, Patna, Bihar.
Insights
Hypertension is linked to hyperlipidemia, a risk factor for coronary artery disease. An abnormal total cholesterol-HDL ratio is the most common dyslipidemia in hypertensive patients.
Area of Science:
- Cardiovascular Medicine
- Metabolic Disorders
- Public Health
Background:
- Hypertension is associated with numerous coronary artery disease risk factors, notably hyperlipidemia.
- Understanding lipid profiles in hypertensive individuals is crucial for cardiovascular risk assessment.
Purpose of the Study:
- To analyze lipid profiles in uncomplicated hypertensive patients compared to a control group.
- To identify the most prevalent dyslipidemia abnormality in hypertensive individuals.
Main Methods:
- Lipid profiles of 3,182 uncomplicated hypertensive patients (1992-1998) were analyzed against 4,131 controls.
- Statistical analysis compared mean cholesterol, HDL, LDL, and triglyceride levels, and cholesterol-HDL ratios between groups.
Main Results:
- Hypertensive patients showed statistically higher mean total cholesterol (191.8 vs 190.1 mg/dL) and cholesterol-HDL ratio (4.65 vs 4.48).
- Over 50% of hypertensives had an abnormal total cholesterol-HDL ratio (> 4.5), the most common dyslipidemia.
- Elevated total cholesterol, LDL, and low HDL were more prevalent with increasing hypertension severity.
Conclusions:
- An abnormal total cholesterol-HDL ratio is the most frequent dyslipidemia in uncomplicated hypertension.
- Lipid profile abnormalities, particularly the cholesterol-HDL ratio, are significant in hypertensive patients and warrant clinical attention.
Abstract:
A number of risk factors for coronary artery disease are known to be present in hypertensive patients, the most important being hyperlipidemia. An analysis of the lipid profiles of 3,182 uncomplicated non-diabetic patients (2,425 males, 757 females) who attended two institutions of Patna city between 1992-1998 was conducted alongwith 4,131 controls. Mean total cholesterol was slightly higher (but statistically significant; p < or = 0.05) in hypertensives (191.8 mg/dL vs 190.1 mg/dL) as compared to the control group; mean total cholesterol-HDL ratio was also higher (4.65 vs 4.48) in hypertensives (p < or = 0.05). As per National Cholesterol Education Programme guidelines, 1,069 (33.6%) patients had cholesterol level above 200 mg/dL while 850 (26.7%) had triglycerides over 200 mg/dL among the hypertensive group. An abnormal total cholesterol-HDL ratio (> 4.5) was found in 1,600 (50.3%) of the hypertensives; this was by far the most common abnormality. With increasing severity of hypertension, the prevalence of elevated total cholesterol, LDL cholesterol and low HDL cholesterol was higher; triglyceride levels were less affected. These results indicate that an abnormal total cholesterol-HDL ratio is the most common variety of dyslipidemia in uncomplicated hypertension.