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Normal M mode values in healthy Turkish children
Insights
This study provides normal M-mode echocardiographic values for 1200 healthy children, creating centile charts to assess cardiac structure normality in neonates and adolescents.
Area of Science:
- Pediatric Cardiology
- Echocardiography
- Biostatistics
Background:
- Accurate assessment of cardiac structures necessitates comprehensive data from large populations.
- Establishing normal reference values is crucial for diagnosing pediatric cardiac conditions.
Purpose of the Study:
- To determine normal M-mode echocardiographic values in a substantial cohort of healthy neonates and children.
- To develop reference centile charts for key cardiac measurements based on body weight.
Main Methods:
- Echocardiographic measurements were collected from 1200 healthy children (1 day to 17 years) over two years.
- Key cardiac dimensions including ventricular dimensions, wall thickness, and great vessel diameters were assessed.
- Third-degree polynomial curves were used to minimize statistical noise and establish percentile curves.
Main Results:
- Normal M-mode echocardiographic values were established and presented as centile charts correlated with body weight.
- The data demonstrated a strong correlation between cardiac measurements and body weight across the studied age range.
- Adolescent boys exhibited higher cardiac measurement values compared to other groups.
Conclusions:
- The developed centile charts and tables serve as a valuable tool for interpreting echocardiographic measurements in pediatric patients.
- These references aid in distinguishing normal cardiac findings from abnormalities in neonates, children, and adolescents.
Aim:
Evaluation of cardiac structures requires a large study group for accurate data on normal values. The aim of the study was to obtain normal M mode echocardiographic values in a substantial sample of healthy term neonates and children to develop centile charts.
Materials And Methods:
Data were obtained over 2 years from a single center in Turkey, from 1200 healthy infants and children aged 1 day to 17 years. Using echocardiographic investigation, measurements were obtained of the following: left ventricular dimension at end diastole and end systole; thickness of interventricular septum and posterior wall of the left ventricle; aortic and pulmonary root diameter; and left atrial dimension. The influence of systematic errors as statistical noise in this large sample was decreased using third- degree polynomial curves.
Results:
Measurements are presented graphically as curved lines of centiles with respect to body weight for healthy term neonates and children. The values showed a good correlation with body weight and allowed the construction of percentile curves (5%, 25%, 50%, 75%, and 95%). Higher values were observed in boys during adolescence.
Conclusion:
The presented charts and tables make it possible to judge the echocardiographic measurements of a particular patient as normal or abnormal.
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