Normal reference values of tissue Doppler imaging parameters for right ventricular function in young adults: a...

Area of Science:

• Cardiology
• Echocardiography
• Physiology

Background:

• Tissue Doppler imaging is standard for assessing left and right ventricular function.
• Normal reference values for right ventricular echocardiography parameters in the Iranian population are currently unknown.

Purpose of the Study:

• To determine normal echocardiography reference values for right ventricular function in a healthy Iranian population.
• To establish standardized assessment criteria for RV function.

Main Methods:

• 187 healthy volunteers were enrolled.
• Subjects were selected based on medical history, physical examination, ECG, and echocardiography.
• Reference ranges for key echocardiography parameters were derived.

Main Results:

• Reference ranges (5th-95th percentile) were established for tricuspid E velocity, A velocity, E/A ratio, deceleration time, annular Sa velocity, Ea velocity, and E/Ea ratio.
• Differences in deceleration time, E/Ea ratio, and isovolumetric acceleration time (IVA) were noted between males and females.
• Adjusting for body surface area, age, and sex revealed no significant differences in most parameters across groups.

Conclusions:

• The study provides reference ranges for echocardiography parameters of right ventricular function.
• These ranges can help standardize the assessment of RV function, particularly with tissue Doppler imaging.
• While the sample size was not large, the data offers valuable insights for clinical practice.