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Accurate liver size measurement in newborns is crucial. A new method using midclavicular liver span is reliable, outperforming simple palpation below the costal margin for assessing liver size in infants.
Area of Science:
- Pediatrics
- Neonatology
- Medical Imaging
Background:
- Assessing liver size in newborns is important for diagnosing various pediatric conditions.
- Current methods for measuring liver size in neonates have limitations.
- Standardized and reliable measurement techniques are needed.
Purpose of the Study:
- To establish a reliable method for measuring liver span in healthy newborn infants.
- To compare the accuracy of midclavicular liver span measurement with other common methods.
- To provide evidence-based recommendations for clinical practice.
Main Methods:
- Liver size was measured in 100 healthy newborns (35-44 weeks gestational age).
- Measurements included midclavicular liver span (percussed upper to palpated lower border).
- Correlations were assessed with percussion of both borders and liver projection below the costal margin.
Main Results:
- A mean liver span of 5.9 +/- 0.8 cm was determined.
- Midclavicular liver span showed strong correlation with dual percussion (r = .8).
- Liver projection below the costal margin showed poor correlation (r = .55).
Conclusions:
- Midclavicular liver span is a reliable indicator of liver size in newborns.
- Reporting liver projection below the costal margin alone is discouraged.
- This method offers a more accurate assessment of neonatal liver size.
Abstract:
Liver size was measured in 100 healthy newborn infants of gestational ages 35 to 44 weeks. A mean liver span of 5.9 +/- 0.8 cm was determined in these infants by measuring the distance between the percussed upper and palpated lower liver borders along the midclavicular line. This value correlated well with measurements derived from percussing both borders (r = .8) and correlated poorly with measurements of liver projection below the costal margin (r = .55). The practice of reporting liver projection below the costal margin as a single indicator of liver size should be discouraged.