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Right ventricular normal measurements: time to index?

James Willis¹, Daniel Augustine, Rajesh Shah

¹Department of Cardiology, Royal United Hospital, Bath, United Kingdom. jaw43@bath.ac.uk

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography

|July 17, 2012

Summary

Standardizing right ventricular (RV) dimensions using body surface area (BSA) is crucial. This study establishes indexed RV measurements, finding gender significantly impacts ranges, while ethnicity has minimal influence.

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Area of Science:

Cardiology
Echocardiography
Medical Imaging

Background:

Lack of standardized indexed normal right ventricular (RV) dimensions.
Need for RV dimension standardization for clinical practice.
Variations in normal RV dimension ranges exist.

Purpose of the Study:

Establish absolute and indexed normal RV dimensions.
Evaluate effects of gender and ethnicity on RV dimensions.
Standardize RV measurements in a multiethnic population.

Main Methods:

Prospective enrollment of 205 healthy volunteers.
Two-dimensional echocardiography with standardized positions.
Assessment of intraobserver, interobserver, and test-retest variability.

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Main Results:

Male absolute RV dimensions exceeded female dimensions.
European ethnicity showed larger absolute RV dimensions.
Indexed RV dimensions revealed significant gender differences, reducing ethnic variations.

Conclusions:

Gender and body surface area significantly influence normal RV reference ranges.
Ethnicity has a minimal impact on RV dimensions.
Suggested RV markers demonstrated good repeatability.