Mean arterial pressure may affect LV mass even when clinic BP is 120/80 mmHg or less

Area of Science:

• Cardiology
• Echocardiography
• Cardiovascular Physiology

Background:

• Subclinical cardiovascular changes can occur even in individuals without traditional risk factors.
• Normal clinic blood pressure (≤120/80 mm Hg) does not exclude underlying echocardiographic alterations.
• Understanding subclinical changes is crucial for early detection and prevention.

Purpose of the Study:

• To investigate subclinical echocardiographic changes in a healthy population.
• To determine the relationship between mean arterial pressure and left ventricular (LV) mass index in normotensive individuals.
• To assess if elevated mean arterial pressure, even within a normal range, is associated with cardiac structural changes.

Main Methods:

• Detailed echocardiographic evaluations were conducted on sixty-four healthy individuals.
• Participants had no cardiovascular risk factors and clinic blood pressure ≤120/80 mm Hg.
• Statistical analysis included linear correlation and group comparisons based on mean arterial pressure.

Main Results:

• A significant positive linear correlation was found between mean arterial pressure and LV mass index.
• Individuals with a mean arterial pressure >85 mm Hg exhibited a significantly higher LV mass index (P <0.01).
• These findings suggest a potential association between arterial pressure and LV structure in healthy subjects.

Conclusions:

• A relationship may exist between mean arterial pressure and LV mass index in a healthy population.
• Elevated mean arterial pressure, even within normal BP limits, might be linked to subclinical cardiac changes.
• Further investigation in larger cohorts is warranted to confirm these findings and explore clinical implications.