Anterior lens capsule vascularity in evaluating gestation in small for gestation neonates.
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2004-08-07
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This study evaluated the role of anterior lens capsule vascularity in assessing gestation in small for gestational age (SGA) neonates in a prospective manner. Neonates with birth weight less than 2000 g were recruited. Those with gross congenital malformations, including corneal opacity or cataract and evidence of TORCH infection were excluded from the study. A total of 139 subjects were enrolled into the study (60-appropriate for gestational age (AGA) and 79 small for gestational age (SGA) neonates). Clinical gestational age assessment and ophthalmoscopic examination for anterior lens capsule vascularity grading were done within 24 hours of birth by independent blinded observers. The correlation of lens capsule grading with clinical gestation in AGA neonates (r2 = 0.75) was stronger compared to SGA neonates (r2 = 0.50). Gestational age assessment by lens capsule grading had a better agreement with clinical gestation in AGA subjects (Kappa Index - 0.56 in AGA vs. 0.26 in SGA). The lens capsule grading under-estimated the gestation of SGA subjects by an average of three weeks compared to AGA neonates.
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Nagpal J, Kumar A, Ramji S. Anterior lens capsule vascularity in evaluating gestation in small for gestation neonates. Indian Pediatrics. 2004 Aug; 41(8): 817-21