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Reference ranges for sonographic renal dimensions in preterm infants. 2013

Aydin Erdemir, and Zelal Kahramaner, and Ebru Cicek, and Ebru Turkoglu, and Hese Cosar, and Sumer Sutcuoglu, and Esra Arun Ozer
Department of Pediatrics, The Ministry of Health Tepecik Teaching and Research Hospital, Gaziler Street, Yenisehir, Izmir, Turkey.

BACKGROUND Ultrasonographic measurement of kidney dimensions is important in evaluation of renal disease in preterm infants who have multiple comorbidities that affect renal function. OBJECTIVE The purpose of this study was to determine the reference ranges of kidney dimensions in preterm newborns and to provide a chart to use easily in daily practice. METHODS We evaluated renal dimensions in 498 preterm infants with a gestational age of <37 weeks using sonography within the first week of life. We statistically analyzed the relationships between all dimensions and gender, gestational age (based on the last menstrual period), height and weight. Minimum and maximum values of dimensions were defined. RESULTS All dimensions of the kidneys were statistically different in boys and girls (P < 0.05). Both longitudinal and anteroposterior dimensions of the right and left kidneys showed high correlation with gestational age, weight and height in girls and boys. Weight correlated best with dimensions. CONCLUSIONS Nomograms from these data can be used to determine an abnormality in kidneys of preterm newborns.

UI MeSH Term Description Entries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007234 Infant, Premature A human infant born before 37 weeks of GESTATION. Neonatal Prematurity,Premature Infants,Preterm Infants,Infant, Preterm,Infants, Premature,Infants, Preterm,Premature Infant,Prematurity, Neonatal,Preterm Infant
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008297 Male Males
D009929 Organ Size The measurement of an organ in volume, mass, or heaviness. Organ Volume,Organ Weight,Size, Organ,Weight, Organ
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity
D014421 Turkey Country in Southeastern Europe and Southwestern Asia bordering the Black Sea, between Bulgaria and Georgia, and bordering the Aegean Sea and the Mediterranean Sea, between Greece and Syria. The capital is Ankara. Turkiye

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