Prehypertension and Left Ventricular Diastolic Dysfunction in Middle-Aged Koreans.

Area of Science:

• Cardiology
• Hypertension Research
• Diagnostic Imaging

Background:

• Left ventricular diastolic dysfunction indicates myocardial damage, often linked to hypertension.
• The relationship between diastolic dysfunction severity and blood pressure categories requires further investigation.
• Prehypertension (preHT) is a significant public health concern.

Purpose of the Study:

• To examine the association between left ventricular diastolic dysfunction and prehypertension in apparently healthy adults.
• To determine if prehypertension is an independent risk factor for diastolic dysfunction.
• To explore potential gender-specific differences in this association.

Main Methods:

• A cohort of 4261 Koreans aged 45-64 years without prior cardiovascular disease underwent routine health examinations.
• Echocardiography was used to assess left ventricular diastolic dysfunction.
• Participants were categorized into normotensive, prehypertensive, and hypertensive groups based on resting blood pressure.

Main Results:

• The prevalence of prehypertension was 42.1% in the study population.
• Left ventricular diastolic dysfunction (grades 1 and 2) was significantly more common in individuals with preHT, even after adjusting for multiple risk factors (OR 1.66 for grade 1).
• This association was particularly pronounced in middle-aged Korean males.

Conclusions:

• Left ventricular diastolic dysfunction is significantly associated with prehypertension in middle-aged Korean males.
• Early detection and management of prehypertension may be crucial for preventing cardiac damage.
• Further research is warranted to elucidate the mechanisms underlying this association.