TY - CHAP M1 - Book, Section TI - Common Chromosomal Trisomies 21, 18, and 13 A1 - Wilnai, Yael A1 - Manning, Melanie A2 - Stevenson, David K. A2 - Cohen, Ronald S. A2 - Sunshine, Philip PY - 2015 T2 - Neonatology: Clinical Practice and Procedures AB - Chromosome abnormalities account for a significant portion of genetic disease and are important causes of congenital malformations and pregnancy loss. Cytogenetic disorders are found in nearly 1% of live births; thus, performing a karyotype on a newborn with multiple congenital anomalies can provide valuable information with respect to management questions and prognosis counseling. Chromosome analysis is indicated as a diagnostic procedure in a number of different general clinical situations, such as problems with early growth, development, stillbirth, and neonatal death. For infants in the neonatal period, performing a chromosome analysis may be considered if any of the following features are demonstrated: SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1109799398 ER -