Key result
International echo criteria overestimate aortic dilation prevalence by ~3-fold in a rural Congolese population.
Why the study?
Existing echocardiographic reference values may not apply to rural African populations due to ethnicity-related variability and limited data.
Cross-Sectional (n=422)
No
This study provides age- and sex-stratified reference values for echocardiographic parameters in a rural Congolese population, highlighting significant differences from existing standard measurements and the need for population-specific reference values.
Standard norms may overestimate dilation in rural Congolese adults; leaves open need for population-specific echocardiographic references.
Echocardiography is crucial for diagnosis and management of cardiac diseases. Existing reference values may not be applicable to rural African populations due ethnicity related variability and limited data. This study aimed to establish reference values for echocardiographic parameters in a rural population. We assessed echocardiographic parameters in the adult population ( ≥ 18 years) from rural areas endemic for loiasis in the Republic of Congo. Reference values were established using participants with normal BMI, no hypertension/diabetes, and no significant echocardiographic abnormalities. Statistical analyses included comparisons by sex and age group. This study of 422 participants revealed significant variations in echocardiographic parameters across age and sex groups. Left ventricular dimensions and mass were larger in males, while left ventricular ejection fraction was higher in females. Left atrial dimensions, including area and volume, increased with age. Right ventricular dimensions also exhibited sex and age-related differences, with males generally showing larger dimensions. The prevalence of echocardiographic abnormalities varied significantly compared to reference values from other populations. This study provides age- and sex-stratified reference values for echocardiographic parameters in a rural population endemic for loiasis, highlighting the need for population-specific reference values and a standardized approach to their establishment to improve comparability across studies. The authors assessed echocardiographic parameters in adults from rural areas endemic for loiasis in the Republic of Congo. They report significant differences in the Congolese adults from existing standard measurements, which highlights need for population-specific reference values and a standardized approach to their establishment to improve comparability across studies.
No takes yet. Share an insight, caveat, or question.
Wafeu et al. (2025) conducted a cross-sectional in Healthy adults in a loiasis-endemic area (n=422). Rural loiasis-endemic environment vs. International reference values was evaluated on Echocardiographic reference values and prevalence of echocardiographic abnormalities. Echocardiographic reference values in a rural Congolese population differed significantly from international norms, with standard criteria overestimating the prevalence of aortic dilation (77.7% vs 25.2%) and left atrial dilation (41.1% vs 8.14%).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: